Sensor

SL13A-AQFT

ams AG

Smart Sensory Tag Chip For Unique Identification, Monitoring and Data Logging

Manufacturer: ams AG

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Technical content

ams Datasheet: 2014-May-06 [v1-01] SL13A – 1 SL13A Smart Sensory Tag Chip For Unique Identification, Monitoring and Data Logging The SL13A is a semi-active tag chip optimized for single-cell, battery-powered smart labels with sensor functionality. It also supports fully-passive operation without battery. The chip is ideal for applications using thin and flexible batteries but can also be powered from the RF field (electromagnetic waves from an RFID reader). The chip has a fully integrated temperature sensor with a nonlinearity of ±0.5ºC. The external sensor interface (S EXT ) is an analog input and allows the connection of an external sensor. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of SL 13A, Smart Sensory Tag Chip For Unique Identification, Monitoring and Data Logging are listed below: Figure 1: Added Value of using SL13A Benefits Features Versatile data logging with selectable options Programmable logging modes High temperature range: -40°C to 110°C Logging storage capacity up to 762 events with time stamp On-chip 8k-bit EEPROM Real-time clock (RTC) Supports data logging from various sensors On-chip temperature sensor Analog input for resistive external sensor Flexible supply options Note: After battery is exhausted, the chip will continue working in passive mode (no RTC) Fully passive mode: no battery Semi-passive (BAP) mode: 1.5V or 3V battery Provides supply for external circuitry Energy harvesting from reader field providing up to 4mA @3.4V Long battery life of >1 year (with 25 mAH printed battery) Standby current (RTC running): 2 μA TYP (@1.5V) Operating current (logging, 20ms): 150 μATYP (@1.5V) Works with NFC-enabled phones and HF RFID readers ISO 15693 /NFC-V compliant cool-Log™ supporting logging functions General Description

SL13A – 2 ams Datasheet: 2014-May-06 [v1-01] General Description

Applications

The SL13A applic ations include:

Monitoring and tracking of temperature-sensitive products
Temperature monitoring of medical products
Pharmaceutical logistics
Monitoring of fragile goods transportation Block Diagram The functional blocks of this device for reference are shown below: Figure 2: SL13A Block Diagram Parameter setting via serial interface SPI port (slave) with access to EEPROM Precludes manipulation and unauthorized usage of data Perpetual password-protected EEPROM access from reader Works in multi-tag environment Anti-collision capability Flexible delivery form 16-LD QFN (5x5 mm) Tested wafer (8”) Benefits Features Energy Harvesting (up to 4 mA @3.4V) SL13A ISO 15693 Logging Logic Register FIFO

13.56 MHz

SL13A – 4 ams Datasheet: 2014-May-06 [v1-01] Pin and Pad Layout Figure 5: Pin Description Pin Number Pin Name Description

1 VBAT Battery input

2 ANA-TEST Analog test output

EXT Power output for external circuit (rectified RF voltage)

4 NC Not connected

5A N T 1 A n t e n n a c o i l 6A N T 2 A n t e n n a c o i l

7 NC Not connected

8 NC Not connected

9 NC Not connected

10 CE SPI enable input

12 VSS Negative supply and ground

13 NC Not connected

14 CLK SPI clock

15 DOUT SPI data out

16 SEXT Analog input for external sensor. The input voltage range is 0.3V to 0.6V

SL13A – 6 ams Datasheet: 2014-May-06 [v1-01]

Electrical Characteristics

TA = 0°C to +85°C, V BAT = 1.5V, EN = V BAT, RLOAD = ∞, unless otherwise noted. Typical values are at T A = 35°C. (2) Figure 8: Symbol Parameter Conditions Min Typ Max Unit VBAT Operating Input Voltage TA = 35°C 1.2 3.3 V VBAT(SU) Minimum Start-Up Input Voltage TA = 35°C 1.3 V IBAT-OP Operating Current into VBAT Sensor and A/D converter active 100 150 300 μA IBAT-SD Shutdown Current into VBAT VBAT = 1.5V; TA = 35°C 100 500 nA VEXT Output Voltage see note (1) 3.2 3.4 3.5 V IEXT Maximum Current, External When RF field is present, from the VEXT pin 4m A VIL Input Voltage Threshold, Low CE, SCLK, SDATA Vss-0.3 Vss+0.3 V VIH Input Voltage Threshold, High CE, SCLK, SDATA VBAT – 0.3 V BAT + 0.3 V VOL Output Voltage level, Low DIGI_OUT Vss-0.3 Vss+0.3 V VOH Output Voltage level, High DIGI_OUT VBAT – 0.3 V BAT + 0.3 V VS-EXT Sensor Input Voltage Range SEXT 0.3 0.6 V fc Carrier Frequency 13.553 13.56 13.567 MHz TS-R Temperature Sensor Range -20 60 ºC TE-R Extended temperature sensor range -40 74 ºC TS-O Temperature Sensor Offset at 35°C One-point calibration at 35°C (3) -0.6 +0.6 ºC TS-GN Temperature Sensor Gain and nonlinearity error ±0.5 ºC tRTC-I Real-Time Clock, Interval Programmabl e 1 32,768 Sec tRTC-AT Real-Time Clock, Accuracy at 35°C see note (4) -0.5 +0.5 %

ams Datasheet: 2014-May-06 [v1-01] SL13A – 7 Note(s) and/or Footnote(s): 1. VEXT is rectified RF voltage, for power supply of external circuits. It is limited to 3.4V, when enough signal is present on the coi l. The maximum output current is 5mA and is dependent on the strength of the RF field. 2. Limits are 100% production tested at T A = 35°C. Limits over the operating temperature range are guaranteed by design. 3. During calibration on wafer sort, the chuck temperature variat ion is ±0.5°C, which amounts to the major part of the accuracy error. 4. The real time oscillator frequency is trimmed on wafer sort at 35°C. tRTC-AF Real-Time Clock, Accuracy over the specified temperature range -3 +3 % EW CYC EEPROM Erase/Write Cycles T = 25°C 10,000 Cycles tDR EEPROM Data Retention Time T = 55°C 10 Years tE/W EEPROM Erase/Write Time TA =0º to 55°C 468 m s CT Internal Tuning Capacitor Between ANT1 and ANT2 pins 25 pF Symbol Parameter Conditions Min Typ Max Unit

SL13A – 8 ams Datasheet: 2014-May-06 [v1-01] Detailed Description The SL13A is designed for use in smart active labels (SAL) and smart passive labels. Smart active labels are defined as thin and flexible labels that contain an integrated circuit and a power source. SAL includes in its defini tion both “fully active” smart labels, and semi-active smart labels, also known as battery-assisted back-scattered passive labels, both of which enable enhanced functionality and superior performance over existing passive labels. The SL13A can be used in semi-active or fully-passive smart labels. The IC includes sensor functionality and logging of sensor data (see Figure 1 below). The SL13A is operating at 13.56 MHz and is fully ISO 15693 compliant. The chip is supplied from a single-cell battery of typically 1.5V. The on-chip temperature sensor and real-time clock (RTC) accommodate temperature data logging. Supply Arrangement The SL13A is supplied from either the battery or through the electromagnetic waves from a reader. The device is normally supplied from the battery unless the battery voltage is too low - in this case the device is powered from the RF field. This functionality enables the read out of the log data even in case the battery is exhausted. The chip automatically detects whether a 1.5V or 3V battery is connected and adapts accordingly. The voltage step-up converter provides an input voltage for the voltage regulator, which provides a regulated voltage of 2V nominal (internal digital supply). The maximum current available from V EXT for external circuitry is 4mA (only when RF field is present) and is limited to 3.4V. Analog Front End (AFE) The analog front end is designed for 13.56 MHz according to ISO 15693. The incoming data are demodulated from the received ASK (Amplitude Shift Keying) signal which is 10 ~ 30% or 100% modulated. Outgoing data are generated by the SL13A load variation using Manchester coding with one or two sub-carrier frequencies of 423.75 KHz (f c/32) or 484.28 KHz (fc/28). The SL13A is compliant with the ISO 15693 recommendation for radio frequency power and signal interface. Detailed Description

ams Datasheet: 2014-May-06 [v1-01] SL13A – 9 Detailed Description Processing and Digital Control The SL13A is fully ISO 15693 compliant. Both data coding modes (1 out of 256 and 1 out of 4) are supported by the SL13A. The reader (interrogator) makes mode selection within the SOF (Start of Frame). The 1-of-256 data coding mode ha s a data rate of 1.65 kbit/s c/8192) meaning that the transmi ssion of one byte takes 4.833 ms. The 1-of-4 coding has a rate of 26.48 kbit/s (f c/512) with the transmission of one byte taken 302.08 μs. Figure 9: Response Data Rate Serial Interface (SPI) The integrated serial interface (SPI) can be used to read and write the embedded EEPROM and to set the parameters. The SPI interface is a secondary and test interface - the main interface is the RF ISO15693 interface. Real-Time Clock (RTC) The on-chip real-time clock (RTC) is started through the START -LOG command in which the start time is programmed in UTC format. The interval for sensing and data logging can be programmed in the range from 1 second up to 9 hours. The accuracy of the timer is ±3%. Temperature Sensor The on-chip temperature sensor can measure the temperature in the range from -20ºC to 60ºC within the specified accuracy. The reference voltage for the A/D conversion is supplied from an on chip calibrated Bandgap reference. External Sensor The external sensor pin (S EXT ) can be used to connect an external sensor to the A/D converter. The voltage input range is 300mV – 600mV and is fixed. For extra low power applications the CE pin can switch the battery voltage for the time of the external sensor A/D converter, so the current from the battery into the sensor will flow only fo r this short time (max 5ms). This can be enabled when the External-sensor flag is set to 1 and the bit 19 in the Internal calibration data is set. Data Rate One Sub-carrier Two Sub-carrier Low 6.62 kbit/s (f c/2048) 6.67 kbit/s (f c/2032) High 26.48 kbit/s (f c/512) 26.69 kbit/s (f c/508)

SL13A – 10 ams Datasheet: 2014-May-06 [v1-01] Detailed Description A/D Converter An integrated 10-bit dual slope converter is used for the temperature, battery and external sensor voltage conversions. EEPROM Organization and Security The EEPROM is organized into 3 areas - the System area, User area and Measurement area. The System area has a fixed size and can be accessed only by the proprietary commands. It is protected by the Level 1 password - the System password. The User and Measurement areas resi de in the same address space (256 blocks), but have separated passwords - the User password and the Measurement password. The User and Measurement are can be accessed by the standard ISO15693 read and write commands. The User area size can be set by the Initialize command. The minimum User area size is 1 block, the maximum is 256 blocks. The size of the Measurement area is 256 blocks minus User area. All blocks are 32 bits wide. The password protection restricts only the write-type commands. Read commands are always open. The password protection can be activated for every area individually by writing a value not equal to 0 to the password blocks. The chip also supports a One-time use secure mode. When this mode is used, all Measurement blocks are automatically locked by the chip with the Start Log command. Those blocks cannot be unlocked anymore even if the Level 3 (measurement) password is known. This mode is intended for high security applications where the 32-bit password does not provide enough confidence. Fully Passive Operation The chip can be used in fully passive mode without a battery supply. In this mode all functions are active only when the antenna is in a RF field. For extended operation range in fully passive mode, connect a 2.2 μF capacitor between the V EXT and VSS pins. The chip can be used also without this capacitor.

SL13A – 12 ams Datasheet: 2014-May-06 [v1-01] Functional Description Passive State In passive mode, the chip waits for the presence of an RF field or for CE signal to go high. Current consumption from the battery in passive mode is <300nA. Figure 10: Overview of Operation States State CE Description IBAT (Typ.) Power from AFE Passive Low Chip in passive state No current into VBAT <0.1 μA No Serial High Enables initializing and executing of all commands via the SPI bus No Ready Low Chip is initialized and all commands can be executed via the reader Yes Active Low RTC running Sensor standby 3 μA No Logging Low Sensor reading (on-chip temperature sensor, battery voltage level and/or external sensor through the S EXT pin) Measured data stored in EEPROM RTC time stored in EEPROM 100 μA No

SL13A – 14 ams Datasheet: 2014-May-06 [v1-01] Commands Response Structure Figure 13: Response Structure Figure 14: cool-Log™ Command Overview SOF Flags Parameters / Data CRC EOF 8 bits n*8 bits 16 bits Command Command Code Allowed in Modes Mode Change Security Level Definition Logging Serial Ready Active Passive

01 Inventory 0x01 - √ √ √ - No 0 Multi-tag request, anti-collision

02 Stay Quiet 0x02 - √ √ √ - Yes 0 Sets the chip to quiet state

03 Read Block 0x20 - √ √ √ - No 0 Reads the requested block

04 Read Blocks 0x23 - √ √ √ - No 0 Reads the requested blocks

05 Write Block 0x21 - √ √ √ - No 2 or 3 Writes the requested block

06 Lock Block 0x22 - √ √ √ - No 2 or 3 Locks the requested block

07 Write AFI 0x27 - √ √ √ - No 1 Writes AFI (application family

identifier) number into chip

08 Lock AFI 0x28 - √ √ √ - No 1 Locks the AFI block

09 Write DSF 0x29 - √ √ √ - No 1 Writes the DSF (data storage

format) number into the chip

10 Lock DSFID 0x2A - √ √ √ - No 1 Locks the DSFID block

11 Reset to ready 0x26 - √ √ √ - Yes 0 Resets from Quiet state

12 Get System

0x2B - √ √ √ - No 0 Read the System information block

13 Set PW 0xA0 - √ √ √ - No 1, 2, 3 Sets the passwords to EEPROM

14 Set Log Mode 0xA1 - √ √ - - No 1 Sets logging mode

15 Set Log Limits 0xA2 - √ √ - - No 1 Sets the measurement limits for

ams Datasheet: 2014-May-06 [v1-01] SL13A – 15 Commands

16 Get

0xA3 - √ √ √ - No 0 Reads 4 system blocks - Start time, Log limits, Log mode, and Delay time + user area size 17 Set Ext. Calibration data 0xA4 - √ √ - - No 1 Sets the calibration data for the external sensor 18 Set Int. calibration Data 0xA5 - √ √ - - No 1 Sets the calibration data for the temperature sensor and timer

19 Set Passive 0xA6 - √ - √ - Yes 1 Stops the log procedure and

returns the chip to Standby mode

20 Start Log 0xA7 - √ √ - - Yes 1 Starts the timer and the

21 Get Log State 0xA8 - √ √ √ - No 1 Gets the log state of the chip

22 Get calibration

0xA9 - √ √ √ - No 0 Reads the internal and external calibration data

23 Get Battery

0xAA - √ √ √ - No 0 Measures the battery voltage

24 Verify PW 0xAB - √ √ √ - No 0 Verifies the password for the

25 Initialize 0xAC - √ √ - - No 0 Initializes the chip and sets the

user area size and the logging delay

26 Get

0xAD - √ √ √ - No 0 Measures the temperature Command Command Code Allowed in Modes Mode Change Security Level Definition Logging Serial Ready Active Passive

SL13A – 16 ams Datasheet: 2014-May-06 [v1-01] Commands Command Description The commands are described below in detail.

I n v e n t o r y - # 0 1 After receiving an INVENTORY request, all chips respond with their respective unique serial numbers (UID). One slot and multiple slot for anti-collision is supported.
Stay Quiet - #02 When a chip receives a STAY-QUIET command, it enters the quiet state. In this state, the chip will not respond to Inventory commands. The chip leaves the Quiet state after receiving the Reset to Ready command.
R e a d B l o c k - # 0 3 A memory block can be read with the READ-BLOCK command. Only the User and Measurement area are accessed by this command.
Read Blocks - #04 Multiple blocks can be read with the READ-BLOCKS command. The maximum numbers of blocks in this command is 256.
Write Block - #05 The WRITE-BLOCK command writes the requested block with the data contained in the request. Only User and Measurement data are acce ssed by this command. Security levels: 2 for User data and 3 for Measurement data.
Lock Block - #06 The LOCK-BLOCK command locks the requested block in the User and Measurement area. A locked block is permanently locked and cannot be unlocked anymore. Security levels: 2 for User ar ea and 3 for Measurement area.
W r i t e A F I - # 0 7 The WRITE-AFI command writes the AFI number (application family identi fier) into the memory. Security level 1.
L o c k A F I - # 0 8 The LOCK-AFI command locks the AFI block. It cannot be unlocked anymore. Security level 1.
Write DSFID - #09 The WRITE-DSF command is used to write the DSF (data storage format) number into the memory. Security level 1.

ams Datasheet: 2014-May-06 [v1-01] SL13A – 17 Commands

Lock DSFID - #10 The LOCK -DSFID command locks the DSFI D block. It cannot be unlocked anymore. Security level 1.
Reset to Ready - #11 The RESET-TO-READY command puts the chip from Quiet to Ready state. It is effective only in Quiet state.
G e t S y s t e m I n f o - # 1 2 The GET-SYSTEM-INFO command gets the system information of the ch ip, including info flags, UID, chip revision, blocks and size.
S e t P W - # 1 3 The SET-PW command sets the passw ords for the selected password level. The passwords are parallel, which means that the user can protect individual areas and not affect the other areas. Security levels 1, 2 or 3, respectively. Figure 15: Security Levels Explained
S e t L o g M o d e - # 1 4 The SET-LOG-MODE command defines the sensor type (internal/external sensors), logging form, extreme upper limit and storage rules. Security level 1.
Set Log Limits - #15 The SET-LOG-LIMITS command sets the logging higher, lower and extreme lower limits. Those limits are used in the Limits modes and ignored in the Dense mode. Security level 1.
Get Measurement Setup - #16 The GET-MEASUREMENT-SETUP command reads 4 system blocks - Start time, Log limits, Log mode and Delay time. Security Level Password Access 0N o A l l o p e n

1 System password System area

2 User password User area

3 Measurement password Measurement area

SL13A – 18 ams Datasheet: 2014-May-06 [v1-01] Commands

Set External Calibration Data - #17 The SET-EXT-CAL-DATA command sets the user calibration values. Those values have no effect on the internal calibration settings. Security level 1.
Set Internal Calibration Data - #18 The SET-INT-CAL-DATA command sets the calibration values for the internal temperature sensor. Security level 1.
Set Passive - #19 The SET-PASSIVE command stops the logging procedure and returns the chip to pass ive mode. It also stops the timer. Security level 1.
Start Log - #20 The START-LOG command starts the logging procedure and sets the Start time in UTC format. In logging state the chips automatically performs the measurements and data logging in the specified time intervals. Supported is also a delayed start, which means that the chip will start with the logging procedure with a specified delay after it receives the START -LOG command. Security level 1.
Get Log State - #21 The GET-LOG-STATE command gets the log state of following paramete rs: measurement status and out of limits counter. This gives th e ability to quickly check the state of the package without the need to read the whole temperature data log.
G e t C a l i b r a t i o n D a t a - # 2 2 The GET-CALIBRATION command reads the calibration data for the internal and external sensors.
Get Battery Level - #23 The GET-BAT-LEVEL command measures and reads the voltage level of the battery.
V e r i f y P W - # 2 4 The VERIFY-PW command is used to verify the various passwords.

ams Datasheet: 2014-May-06 [v1-01] SL13A – 19 Commands

I n i t i a l i z e - # 2 5 The INITIALIZE command sets the size of the user data area and sets the delay time. If the Secure flag is set, the chip automatically locks all measurement blocks. The command clears the measurement status and limits counter blocks. Security level 1.
Get temperature - #26 The GET-TEMPERATURE command measures and reads the current chip temperature. The measured temperature can be higher than the environment temperature, because of the chip self-heating through the reader RF field. To ensure correct measurement, the reader has to send this command as soon as possible after the RF field is turned on. Inventory - #01 Request: Note: The AFI field is not supported by the SL13A. Reply: Note: The manufacturers ID is 0x36. The UID consists of 8 bytes: E0 36 XX XX XX XX XX XX. Stay Quiet - #02 Request: No Reply. SOF FLAGS 8 bits COMMAND CODE 0x01 MASK LENGTH 8 bits MASK VALUE 0 - 64 bits CRC 16 bits EOF SOF FLAGS 8 bits DSFID 8 bits UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x02 UID 64 bits CRC 16 bits EOF

SL13A – 20 ams Datasheet: 2014-May-06 [v1-01] Commands Read Block - #03 Request: Reply: Read Blocks - #04 Request: Reply: Write Block - #05 Request: Reply: Lock Block - #06 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0x20 UID 64 bits BLOCK ADDRESS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits BLOCK SECURITY STATUS 8 bits DATA 32 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x23 UID 64 bits BLOCK ADDRESS 8 bits NUMBER OF BLOCKS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits BLOCK SECURITY STATUS 8 bits DATA 32 bits CRC 16 bits EOF Repeat As Requested SOF FLAGS 8 bits COMMAND CODE 0x21 UID 64 bits BLOCK ADDRESS 8 bits DATA 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x22 UID 64 bits BLOCK ADDRESS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF

ams Datasheet: 2014-May-06 [v1-01] SL13A – 21 Commands Write AFI - #07 Request: Reply: Lock AFI - #08 Request: Reply: Write DSFID - #09 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0x27 UID 64 bits AFI 8 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x28 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x29 UID 64 bits DSIF 8 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF

SL13A – 22 ams Datasheet: 2014-May-06 [v1-01] Commands Lock DSFID - #10 Request: Reply: Reset to Ready - #11 Request: Reply: Get System Info - #12 Request: Reply: Tag memory size field: SOF FLAGS 8 bits COMMAND CODE 0x2A UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x26 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0x2B UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits INFO FLAGS 8 bits UID 64 bits DSFID 8 bits AFI 8 bits TAG MEMORY SIZE 16 bits IC REFERENCE 8 bits CRC 16 bits EOF MSbit LSbit 15 13 12 8 7 0 RFU BLOCK SIZE NUMBER OF CLOCKS

ams Datasheet: 2014-May-06 [v1-01] SL13A – 23 Commands Set Password - #13 Request: Reply: Password Level Field: Set Password: bit6 - bit2 are all 0. When bit7 of the Password level field is set to 1, the password is written to the requested level in the EEPROM. This operation enables password protection for the requested area, if the password is not 0. When the bit7 of the Password level field is 0, the requested area is opened with the included password. This command will not send back any error message, if the included password is not correct. One can verify the password with the Verify Password command. Set Log Mode - #14 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0xA0 UID 64 bits PASSWORD LEVEL 8 bits PASSWORD 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF b0 b1 Password level b7 Operation 0 1 Level 1 - System 0 Open area 1 0 Level 2 - User 1 Write password

11 L e v e l 3 - M e a s u r e m e n t

SL13A – 24 ams Datasheet: 2014-May-06 [v1-01] Commands Set Log Limits - #15 Request: Reply: Get Measurement Setup - #16 Request: Reply: Set External Calibration Data - #17 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0xA2 UID 64 bits LOG LIMITS 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xA3 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits START TIME 32 bits LOG LIMITS 32 bits LOG MODE 32 bits DELA Y TIME 32 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xA4 UID 64 bits EX. CAL. DATA 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF

ams Datasheet: 2014-May-06 [v1-01] SL13A – 25 Commands Set Internal Calibration Data - #18 Request: Reply: Set Passive - #19 Request: Reply: Start Log - #20 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0xA5 UID 64 bits IN. CAL. DATA 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xA6 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xA7 UID 64 bits START TIME 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF

SL13A – 26 ams Datasheet: 2014-May-06 [v1-01] Commands Get Log State - #21 Request: Reply: Get Calibration Data - #22 Request: Reply: Get Battery Level - #23 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0xA8 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits MEASUREMENT STATUS 32 bits LIMITS COUNTER 32 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xA9 UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits INT. CAL. DATA 32 bits EXT. CAL. DATA 32 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xAA UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits BATTERY LEVEL 8 bits CRC 16 bits EOF

ams Datasheet: 2014-May-06 [v1-01] SL13A – 27 Commands Verify Password - #24 Request: Reply: Initialize - #25 Request: Reply: Get Temperature - #26 Request: Reply: SOF FLAGS 8 bits COMMAND CODE 0xAB UID 64 bits PASSWORD LEVEL 8 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xAC UID 64 bits DELAY TIME AND #OF USER BLOCKS 32 bits CRC 16 bits EOF SOF FLAGS 8 bits CRC 16 bits EOF SOF FLAGS 8 bits COMMAND CODE 0xAD UID 64 bits CRC 16 bits EOF SOF FLAGS 8 bits TEMPERATURE 16 bits CRC 16 bits EOF

ams Datasheet: 2014-May-06 [v1-01] SL13A – 29 Commands Error Handling Every command request can generate an error response in case an error has been detected. The error response format is the same for all commands: The error codes are defined as below. Figure 18: Error Codes SOF FLAGS 8 bits ERROR CODE 8 bits CRC 16 bits EOF Error Code Description 0x01 Command not supported - wrong command code 0x02 Command is not recognized - format error 0x03 Option not supported 0x0F Unknown error 0x10 The specified block is not available 0x11 The specified block is already locked and cannot be locked again 0x12 The specified block is alread y locked and cannot be written 0xA0 Incorrect password 0xA1 Log parameters missing 0xA2 Battery measurement error 0xA3 Temperature measurement error 0xA5 User data area error 0xA6 EEPROM collision all other RFU

SL13A – 30 ams Datasheet: 2014-May-06 [v1-01] Commands Data Log Format The SL13A device supports 3 different data log formats. The data log format depends on the Logging form. The data log formats are defined as follows: Dense mode: Limits mode without battery check: Limits mode with battery check: In Dense mode there is no Measurement number included, because every measurement is stored to the EEPROM. The Logging form is set with the Set Log Mode command and is stored in the Bit30 and Bit29 in the Log mode field in the EEPROM. Figure 19: Bit30, Bit29 b31 - b30 b29 b20 b19 b10 b9 b0 0 Temp. value 3 Temp. value 2 Temp. value 1 b31 b20 b19 b10 b9 b0 Measurement # 0 Temp. value b31 b20 b19 b10 b9 b0 Measurement # Battery value Temp. value Bit30 Bit29 Logging Form Description

00 D e n s e

All values are stored to the measurement area. There are 3 10bit temperature values in each EEPROM block. The upper 2 bits are 0. No Battery voltage storage is possible in this mode. 0 1 All values out of limits All values that are out of the specified limits are stored to the measurement area. There is only 1 measurement in each EEPROM block. The temp. value is in the lower 10 bits (b9 – b0). If Battery check is set to 1, the battery value is stored to the next 10 bits. The upper 12 bits hold the number of the measurement. 1 0 Not allowed Option not supported 1 1 Limits crossing Only the crossing point of each limit boundary is stored. There is only 1 measurement in each EEPROM block. The temp. value is in the lower 10 bits (b9 – b0). If Battery check is set to 1, the battery value is stored to the next 10 bits. The upper 12 bits hold the number of the measurement.

ams Datasheet: 2014-May-06 [v1-01] SL13A – 31 Commands Out-of-Limits Counter The Out-of-Limits counter can be used as an advanced alarm mechanism. It is enabled in log format with temperature limits and it will display the cumulative number of measurements that are outside the specified limit. The application does not have to read the whole EEPROM content in order to determine if the temperature limits have been ex ceeded, just the Out-of-Limits block. The Out-of-Limits counter block can be read out with the Get Log State command. Logging Timer The SL13A device has an integrated RC oscillator that is calibrated to 1024Hz. This oscillator drives the logging timer. The logging timer resolution is 1 second, the maximum period is 9.1 hours (32768 seconds). The measurement real time is derived from 4 parameters - the Start time (ST), the Delay time (DT), the measurement period (MP) and the # of the measurement (NM). This value has to be calculated in the reader by the equation: Real time = ST+DT+MP*NM Delay Time The SL13A supports delayed start of the logging procedure. The Delay time has a resolution of 8.53 minutes and a maximum value of 582 hours (12 bits). The delay time value is set with the Initialize command, while the Delay time counter starts counting when the device receives the Start Log command. Temperature Conversion The calibration data does not have to be included in the temperature conversion equation. The temperature value is calculated as: LSB = 0.169ºC offset = -92.7ºC offset calibration = 0.169 * 32 = 5.4ºC

SL13A – 32 ams Datasheet: 2014-May-06 [v1-01] Commands Battery Voltage Conversion The battery voltage conversion is dependent on the initial battery voltage (1.5V or 3V). For 1.5V battery, the equation is: V = code*3.35mV + 860mV LSB = 3.35mV Offset = 860mV For 3V battery: V = code*6.32mV + 1.62V LSB = 6.32mV Offset = 1.62V SPI Operation Full and unlimited EEPROM access is possible through the SPI interface. The primary function of the SPI interface is production calibration and UID programming, but it can also be used in application, where the ISO15693 interface cannot be used. Data on the D_IN pin is latched in on the falling edge of the SCLK signal. Data on the D_OUT pin is shifted out on the falling edge of the SCLK signal. The bytes are sent MSbit first. The SPI communication is byte-oriented. It is composed of 3 fields of fixed length: Command field (1 byte), Address field (1 byte) and Data field (4 bytes). The structure of the Command field is defined in the table below. Figure 20: Command Field Structure Bit Number Description b7 EEPROM write b6 EEPROM read b5 EEPROM erase b4 EEPROM write block b3 EEPROM erase block b2 Test b1 RFU b0 0 - system EEPROM, 1 - user/measurement EEPROM

ams Datasheet: 2014-May-06 [v1-01] SL13A – 33 Commands The Address field holds the EEPROM address. Data field contains the EEPROM data or Test vector. The SPI communication is always organized into frames of 6 bytes, any other number of bytes will result in a communication error. The communication has to end with a clock pulse - the 'execute' pulse. The whole number of clock pulses in a communication frame is 49. The only operation that requires more bytes is the EEPROM read operation. After the 49th clock pulse, another 33 clock pulses have to be generated, with a delay of at least 30 μs after the 'execute' pulse. The data is shif ted out with the last 32 clock pulses. The SPI supply will send an IRQ on the D_OUT pin after the command is executed. In the SPI Write command, the D_OUT signal will go high after the EEPROM write operation is fully completed. This typically takes 12ms. In the SPI Read command, the D_OUT signal will go high after the data is ready to be read. In order to read the data, the ma ster has to send 1 additional clock pulse – the ACK pulse – before he starts to read the 32 bits of data. In a Read command, the full operation takes 82 clock pulses (48 for command + 1 Execute + 1 ACK + 32 data read). The SPI interface is referenced to the V BAT supply. If the chip is used in fully passive mode with external circuitry, the SPI interface is referenced to the V EXT supply. Figure 21: SPI Write Operation

ams Datasheet: 2014-May-06 [v1-01] SL13A – 35 Memory Map Overview Figure 25: System Area Block Bits Description 00 00...31 UID lower bits 01 00...31 UID higher bits 2...15 16...23 24...31 AFI/DSFID block DSFID lock bit AFI lock bit TBD DSFID (Data Storage Format Identifier)\\ AFI (Application Family Identifier) 0...7 8...15 16...23 24...31 Chip info Block size Number of blocks Chip revision number - IC reference TBD 04 0...31 Reserved 0...4 5...7 9...16 17...18 23...24 26...31 Internal Calibration data Reference voltage calibration Bandgap reference calibration Reference voltage calibration MSB1 RTC oscillator calibration Low POR calibration - 1.5V battery Enable battery voltage switch to CE pin High POR calibration - 3V battery Bandgap reference calibration LSB TBD 3MHz oscillator calibration Reference voltage calibration MSB2 A/D offset calibration 06 0...31 External calibration data 07 0...31 Reserved 0...5 6...11 12...16 17...21 22...25 26...31 Start time - suggested Start time format (YYYY-MM-DD-hh:mm:ss) second minute hour day month year 0...9 10...19 20...29 30...31 Limits Extreme lower limit Lower limit Upper limit TBD Memory Map Overview

SL13A – 36 ams Datasheet: 2014-May-06 [v1-01] Memory Map Overview Figure 26: User and Measurement Area 0...9 10...24 29...30 Log mode + limits Extreme upper limit Log interval (LSB=1 second, maximum=32768 seconds) reserved TBD Storage rule (0 - normal, 1 - rolling) Battery check (0 - no battery measurement, 1 - battery measurement at logging) Logging form Internal/external sensor (0 - internal temp. sensor, 1 - external sensor) 0...7 8...19 20...30 Number of blocks for user data Delay time (LSB=8.53 minutes, maximum=582hours) TBD Single use flag (0 - reusable, 1 - single use/secure) 1...10 11...13 14...23 24...31 Memory/Measurement status Active (0 - passive, 1 - active/logging) Errors and events Number of memory replacements Number of measurements Measurement address pointer 0D 0...31 Password for System area (password 1) 0E 0...31 Password for User area (password 2) 0F 0...31 Password for Measurement area (password 3) 10 - 17 0...31 Lock bits for User/Measurement area 0...7 8...15 16...23 24...31 Out of limits counter Extreme lower limit counter Lower limit counter Higher limit counter Extreme higher limit counter 18 - 1F 0...31 Reserved Block Bits Description 00 00…31 Reserved for user data – no password protection 01 - FF 00…31 User or measurement data Block Bits Description

ams Datasheet: 2014-May-06 [v1-01] SL13A – 37 Temperature Performance The following graph shows the temperature conversion nonlinearity of 8 SL13A devices. Figure 27: Integral Nonlinearity Graph The measurements have been performed on the following equipment:

Environmental chamber: ESPEC SU-241
Reference temperature sensor: Testo 735 (system accuracy of 0.05ºC)
Reference temperature probe: Testo High accuracy Pt100 probe (0614 0235) For each temperature point, 100 measurements were taken using the logging function of the SL13A chip. The RF field of the reader has been turned off during the temperature logging. Temperature Performance -60 -40 -20 0 20 40 60 80 -1,5 -0,5 0,5 Integral nonlinearity 8 samples E0 36 10 00 00 00 00 04 E0 36 02 00 00 00 00 05 E0 36 10 00 00 00 00 09 E0 36 10 00 00 00 00 0A E0 36 10 00 00 00 00 0B E0 36 10 00 00 00 00 0D E0 36 10 00 00 00 00 0E E0 36 10 00 00 00 00 0F Temperature Er r or ( C)

ams Datasheet: 2014-May-06 [v1-01] SL13A – 41 Packaging Information Figure 31: Package Drawings Packaging Information

SL13A – 42 ams Datasheet: 2014-May-06 [v1-01] Packaging Information Figure 32: Dimensions Note(s) and/or Footnote(s): 1. The reflow peak soldering temperature (body temperature) is specified according IPC/JEDEC J-STD-020C “Moisture/Reflow Sensitivity Classification for Non-hermet ic Solid State Surface Mount Devices” . Dim Min Nom Max Notes A 0.80 0.90 1.00 1. Dimensioning and toleranceing confirm to ASME Y14.5M-1994. 2. All dimensions are in millimeters. Angles are in degrees. 3. Dimension b applies to metallized terminal and is measured between 0.25mm and 0.30mm from terminal tip. Dimension L1 represents terminal full back from package edge up to 0.1mm is acceptable. 4. Coplanarity applies to the ex posed heat slug as well as the terminal. 5. Radius on terminal is optional. A1 0.203 REF b 0.33 0.40 0.47 D5 . 0 0 B S C E5 . 0 0 B S C D1 3.15 3.25 3.35 E1 3.15 3.25 3.35 e - 0.80 BSC - L 0.255 0.355 0.455 L1 0.10 P4 5 º B S C aaa 0.10 ccc 0.10

ams Datasheet: 2014-May-06 [v1-01] SL13A – 43 Ordering & Contact Information Figure 33:

Ordering Information

Note(s) and/or Footnote(s): 1. Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material. 2. The tested wafers are not physical inked but are delive red with a wafer map specification in Electroglas format. 3. Order quantities should be a multiple of shipping form. Buy our products or get free samples online at: www.ams.com/ICdirect Technical Support is available at: www.ams.com/Technical-Support For further information and requests, e-mail us at: ams_sales@ams.com For sales offices, distributors and representatives, please visit: www.ams.com/contact Headquarters ams AG Tobelbaderstrasse 30

8141 Unterpremstaetten

Austria, Europe Tel: +43 (0) 3136 500 0 Website: www.ams.com Ordering Code Description Operating Temperature Range Package Type Device Marking Shipping Form SL13A-AQFT Smart active label IC with on-chip temperature sensor and 8k EEPROM -40°C to 110°C QFN 16LD (5x5 mm) RoHS (1) SL13A Tape & reel 1,000 parts/13” reel SL13A-ASWB -40ºC to 110ºC - Tested wafers Ordering & Contact Information

SL13A – 44 ams Datasheet: 2014-May-06 [v1-01] RoHS Compliant & ams Green Statement RoHS: The term RoHS compliant means that ams AG products fully comply with current RoHS directives. Our semiconductor products do not contain any chemicals for all 6 substance categories, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, RoHS compliant products are suitable for use in specif ied lead-free processes. ams Green (RoHS compliant and no Sb/Br): ams Green defines that in addition to RoHS compliance, our products are free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material). Important Information: The information provided in this statement represents ams AG knowledge and belief as of the date that it is provided. ams AG bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are unde rway to better integrate information from third parties. ams AG has taken and continues to take reasonable steps to prov ide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ams AG and ams AG suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. RoHS Compliant & ams Green Statement

ams Datasheet: 2014-May-06 [v1-01] SL13A – 45 Copyrights & Disclaimer Copyright ams AG, Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. Devices sold by ams AG are covered by the warranty and patent indemnification provisions appear ing in its Terms of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the inform ation set forth herein. ams AG reserves the right to change specifications and prices at any time and without notice. Theref ore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications , such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. This product is provided by ams AG “AS IS” and any express or implied wa rranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any th ird party shall arise or flow out of ams AG rendering of technical or other services. Copyrights & Disclaimer

SL13A – 46 ams Datasheet: 2014-May-06 [v1-01] Document Status Document Status Product Status Definition Product Preview Pre-Development Information in this datasheet is based on product ideas in the planning phase of development. All specifications are design goals without any warranty and are subject to change without notice Preliminary Datasheet Pre-Production Information in this datasheet is based on products in the design, validation or qualification phase of development. The performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice Datasheet Production Information in this datasheet is based on products in ramp-up to full production or full production which conform to specifications in accordance with the terms of ams AG standard warranty as given in the General Terms of Trade Datasheet (discontinued) Discontinued Information in this datasheet is based on products which conform to specifications in accordance with the terms of ams AG standard warranty as given in the General Terms of Trade, but these products have been superseded and should not be used for new designs Document Status

ams Datasheet: 2014-May-06 [v1-01] SL13A – 47 Revision Information Note(s) and/or Footnote(s): 1. Page numbers for the previous version may di ffer from page numbers in the current revision Changes from 1-00 (2014-Mar) to current revision 1-01 (2014-May-06) Page Removed “Confidential” from the footer Updated Figure 8 6 Revision Information

SL13A – 48 ams Datasheet: 2014-May-06 [v1-01] Content Guide

1 General Description

1 Key Benefits & Features

2 Applications

2 Block Diagram

3 Pin and Pad Layout

5A b s o l u t e M a x i m u m R a t i n g s

5 Operating Conditions

6 Electrical Characteristics

8 Detailed Description

8 Supply Arrangement

8A n a l o g F r o n t E n d ( A F E ) 9P r o c e s s i n g a n d Digital Control