S35710

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www.sii-ic.com FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER © Seiko Instruments Inc., 2014-2015 Rev.1.3_00 Seiko Instruments Inc. 1 The convenience timer is a CMOS timer IC which operates wi th low current consumption, and is suitable for the time management of the relative time. The S-35710 Series compares the timer value and the value wri tten to the internal register, and outputs an interrupt signal when the values match each other. The timer is a 24-bit binary-up counter. The internal register data can be set freely by users via a 2-wire serial interface. Consequently, the time before the occurrence of an interrupt signal can be set freely. Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII is indispensable.  Features

• Alarm interrupt function: Settable on the second time scale from 1 second to 194 days (Approximately half a year)
• Low current consumption: 0.2 μA typ. (Crystal oscillator: CL = 6 pF, VDD = 3.0 V, Ta = +25°C)
• Wide range of operation voltage: 1.8 V to 5.5 V
• 2-wire (I 2C-bus) CPU interface
• Built-in 32.768 kHz crystal oscillation circuit
• Operation temperature range: Ta = −40°C to +125°C
• Lead-free (Sn 100%), halogen-free
• AEC-Q100 in process *1 *1. Contact our sales office for details.  Application
• Time management of various systems during the sleep period  Package
• TMSOP-8

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 2  Block Diagram RST SDA SCL Pull-up Oscillation circuit Divider, Timing generator INT pin controller Chattering elimination circuit Internal reset signal Wake-up time register Comparator Timer (24- bit) Time register Serial interface Constant voltage circuit XIN XOUT VDD VSS INT Power-on detection circuit Figure 1

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 3  AEC-Q100 in Process Contact our sales office for details of AEC-Q100 reliability specification.  Product Name Structure 1. Product name S-35710 x xx A - K8T2 U Environmental code U: Lead-free (Sn 100%), halogen-free Product name Operation temperature A: Ta = −40°C to +125°C Package abbreviation and IC packing specification*1 K8T2: TMSOP-8, Ta pe Option code 2*2 Option code 1 A: Crystal oscillator C L = 12.5 pF B: Crystal oscillator C L = 9 pF C: Crystal oscillator C L = 6 pF D: Crystal oscillator C L = others*3 *1. Refer to the tape drawing. *2. A sequence number added by the optional function that is user-selected. *3. Contact our sales office for details. 2. Package Table 1 Package Drawing Codes Package Name Dimension Tape Reel TMSOP-8 FM008-A-P-SD FM008-A-C-SD FM008-A-R-SD 3. Product name list Table 2 Product Name RST Pin *1 INT Pin Output Form*2 Time-out Type *3 S-35710B01A-K8T2U With pull-up resistor CMOS output Handshake time-out S-35710C01A-K8T2U Without pull-up resistor Nch open-drain output Handshake time-out *1. The pin with / without pull-up resistor is selectable. Refer to " Pin Functions". *2. The pin of Nch open-drain output / CMOS output is selectable. Refer to " Pin Functions". *3. The type of one-shot loop time-out / handshak e time-out is selectable. Refer to "  INT Pin Interrupt Signal Output" . Remark Please contact our sales office for products with specifications other than the above.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 4  Pin Configuration 1. TMSOP-8 Top view Figure 2 Table 3 List of Pins Pin No. Symbol Description I/O Configuration

1 RST

(With / without pull-up resistor is selectable)

2 XOUT Connection pins

− −

3 XIN

4 VSS GND pin − −

5 INT Output pin for

interrupt signal Output Nch open-drain output / CMOS output is selectable

6 SDA I/O pin for serial

data Bi-directional Nch open-drain output, CMOS input

7 SCL Input pin for

serial clock Input CMOS input

8 VDD Pin for positive

power supply − −

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 5  Pin Functions 1. SDA (I/O for serial data) pin This is a data input / output pin for I 2C-bus interface. The SDA pin inputs / outputs data by synchronizing with a clock pulse from the SCL pin. This pin has CMOS input and Nch open-drain output. Gener ally in use, the SDA pin is pulled up to VDD potential via a resistor, and is used with wired-OR connection of other device of Nch open-drain output or open collector output. 2. SCL (Input for serial clock) pin This pin is to input a clock pulse for I 2C-bus interface. The SDA pin inputs / outputs data by synchronizing with the clock pulse. 3. RST (Input for reset signal) pin This pin inputs the reset signal. The timer is reset when inputting "L" to the RST pin. The INT pin is set to "H" when inputting "H" to the RST pin, and the timer starts the operation. Moreover, the RST pin with / without a pull-up resistor can be selected. 4. INT (Output for interrupt signal) pin This pin outputs an interrupt signal. The interrupt signal is output when the time written to the wake-up time register comes. The interrupt signal output (time- out type) of one-shot loop time-out / handshake time-out can be selected as the option. Regarding the operation of the interrupt signal output, refer to " INT Pin Interrupt Signal Output". Moreover, the INT pin output form of Nch open-drain output / CMOS output can be selected. 5. XIN, XOUT (Connection for crystal oscillator) pins Connect a crystal oscillator between the XIN pin and the XOUT pin. 6. VDD (Positive power supply) pin Connect this pin with a positive power supply. Regarding the values of voltage to be applied, refer to " Recommended Operation Conditions". 7. VSS pin Connect this pin to GND.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 7  Absolute Maximum Ratings Table 4 Item Symbol Applied Pin Abso lute Maximum Rating Unit Power supply voltage V DD − V SS − 0.3 to VSS + 6.5 V Input voltage V IN SDA, SCL, RST *1 VSS − 0.3 to VSS + 6.5 V RST *2 VSS − 0.3 to VDD + 0.3 ≤ VSS + 6.5 V Output voltage V OUT SDA, INT *3 VSS − 0.3 to VSS + 6.5 V INT *4 VSS − 0.3 to VDD + 0.3 ≤ VSS + 6.5 V Operation ambient temperature*5 Topr − −40 to +125 °C Storage temperature T stg − −55 to +150 °C *1. When the product without a pull-up resistor is selected. *2. When the product with a pull-up resistor is selected. *3. When Nch open-drain output is selected. *4. When CMOS output is selected. *5. Conditions with no condensation or fr ost. Condensation or frost causes short- circuiting between pins, resulting in a malfunction. Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions.  Recommended Operation Conditions Table 5 (VSS = 0 V) Item Symbol Condition Min. Typ. Max. Unit Operation power supply voltage V DD Ta = −40°C to +125°C 1.8 − 5.5 V  Oscillation Characteristics Table 6 (Ta = +25°C, VDD = 3.0 V, VSS = 0 V unless otherwise specified) (Crystal oscillator (NX3215SA, CL = 6 pF) manufactured by Nihon Dempa Kogyo Co., Ltd.) Item Symbol Condition Min. Typ. Max. Unit Oscillation start voltage V STA Within 10 seconds 1.8 − 5.5 V Oscillation start time t STA − − − 1 s IC-to-IC frequency deviation*1 δIC − −20 − +20 ppm *1. Reference value

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 8  DC Electrical Characteristics Table 7 (Ta = −40°C to +125°C, VSS = 0 V unless otherwise specified) (Crystal oscillator (NX3215SA, CL = 6 pF) manufactured by Nihon Dempa Kogyo Co., Ltd.) Item Symbol Applied Pin Condition Min. Typ. Max. Unit Current consumption 1 IDD1 − VDD = 3.0 V, Ta = −40°C to +85°C, Out of communication, RST pin = VDD, INT pin = no load − 0.2 0.35 μA VDD = 3.0 V, Ta = +125°C, Out of communication, RST pin = VDD, INT pin = no load − 0.7 0.95 μA Current consumption 2 IDD2 − VDD = 3.0 V, fSCL = 1 MHz, During communication, RST pin = VDD, INT pin = no load − 170 300 μA High level input leakage current IIZH SDA, SCL, RST V IN = VDD −0.5 − 0.5 μA Low level input leakage current IIZL SDA, SCL, RST *1 V IN = VSS −0.5 − 0.5 μA High level output leakage current IOZH SDA, INT*2 V OUT = VDD −0.5 − 0.5 μA Low level output leakage current IOZL SDA, INT*2 V OUT = VSS −0.5 − 0.5 μA High level input voltage VIH SDA, SCL, RST − 0.7 × VDD − V SS + 5.5 V Low level input voltage VIL SDA, SCL, RST − V SS − 0.3 − 0.3 × VDD V High level output voltage*3 VOH INT I OH = −0.4 mA 0.8 × VDD − − V Low level output voltage VOL SDA, INT I OL = 2.0 mA − − 0.4 V Low level input current*4 IIL RST VDD = 3.0 V, VIN = VSS −100 −30 −5 μA *1. When the product without a pull-up resistor is selected. *2. When Nch open-drain output is selected. *3. When CMOS output is selected. *4. When the product with a pull-up resistor is selected.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 9  AC Electrical Characteristics Table 8 Measurement Conditions 0.8 × VDD Input pulse voltage Output reference voltage 0.2 × VDD 0.7 × VDD 0.3 × VDD Figure 9 Input / Output Waveform during AC Measurement Input pulse voltage VIH = 0.8 × VDD, VIL = 0.2 × VDD Input pulse rise / fall time 20 ns Output reference voltage VOH = 0.7 × VDD, VOL = 0.3 × VDD Output load 100 pF Table 9 AC Electrical Characteristics (Ta = −40°C to +125°C) Item Symbol VDD = 1.8 V to 2.5 V V DD = 2.5 V to 5.5 V Unit Min. Max. Min. Max. SCL clock frequency f SCL 0 400 0 1000 kHz SCL clock "L" time t LOW 1.3 − 0.4 − μs SCL clock "H" time t HIGH 0.6 − 0.3 − μs SDA output delay time*1 tAA − 0.9 − 0.5 μs Start condition set-up time t SU.STA 0.6 − 0.25 − μs Start condition hold time t HD.STA 0.6 − 0.25 − μs Data input set-up time t SU.DAT 100 − 80 − ns Data input hold time t HD.DAT 0 − 0 − ns Stop condition set-up time t SU.STO 0.6 − 0.25 − μs SCL, SDA rise time t R − 0.3 − 0.3 μs SCL, SDA fall time t F − 0.3 − 0.3 μs Bus release time t BUF 1.3 − 0.5 − μs Noise suppression time t l − 50 − 50 ns *1. Since the output form of the SDA pin is Nch open-drain output, the SDA output delay time is determined by the values of the load resistance and load capacitance outside the IC. Figure 11 shows the relationship between the output load values.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 16 Timing status INT pin = "L" Timing stop status INT pin = "L" Timing status INT pin = "L" Timing stop status INT pin = "H" Initial status Wake-up time register = "0 h" Timer = "0 h" INT pin = "L" Timer reset Timer = "0 h" INT pin = "L" Read mode Write Write Write Read Read Read Power-on RST pin = "L" RST pin = "H" Count up every second RST pin = "L" RST pin = "L" RST pin = "L" Write Read Timer = "FFFFFF h" Timer = Wake-up time register Automatic migration Count up every second Timer reset Wake-up time register = "0 h" Timer = "0 h" INT pin = "H" Write mode RST pin = "H" Read Write RST pin = "L" Remark Write: Wake-up time register write command Read: Time register read command Write Figure 21 Status Transition Diagram of Handshake Time-out (CMOS Output)

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 19 4. Data transmission format After the start condition transmission, the 1st byte is a slave address and a command (read / write bit) that shows the transmission direction of the data at the 2nd byte or subsequent bytes. The slave address of the S-35710 Series is specified to "0110010". The data can be written to the wake-up time register when read / write bit is "0", and the data of the wake-up time register or the time register can be read when read / write bit is "1". When the data can be written to the wake-up time register, input the data from the master device in order of B7 to B0. The acknowledge ("L") is output from the S-35710 Series whenever a 1-byte data is input. When the data of the wake-up time regist er or the time register can be read, the data from the S-35710 Series is output in order of B7 to B0 in byte unit. Input the acknowledge ("L") from the master device whenever a 1-byte data is input. However, do not input the acknowledge for the last data byte (NO_ACK). By this, the end of the data read is informed. After the master device receives / transmits the acknowledge for the last data byte, input the stop condition to the S-35710 Series to finish the access operation. When the master device inputs start condition without inpu tting stop condition at this time, the S-35710 Series becomes restart condition, and can transmit / receive the data continuously if the mast er device inputs the slave address continuously. A : Master device input data : S-35710 output data Slave address Slave address Slave address Data Data Data DataA A A A0 B7 B1 B7 B0 B7 B0 B7 B0 B7 B0 SPST A Data Data DataA A A 1 B7 B0 B7 B0 B7 B0 A Data Data Data DataA A A A0 B7 B0 B7 B0 B7 B0 B7 B0 ASlave address Data Data DataA A A 1 B7 B1 R/W B7 B0 B7 B0 B7 B0 SP ST ST ST B7 B1 B7 B1 SP A : Start condition : Acknowledge A A : Stop condition ST SP R/W R/W R/W 1 9 18 27 36 45 Data write format Data read format Restart format SCL SDA SDA SDA Figure 26 Data Transmission Format of Serial Interface

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 21 7. Read operation of wake-up time register Perform the read operation of t he wake-up time register with the restart fo rmat. Regarding the restart format, refer to "4. Data transmission format ". Transmit the start condition and the slave address from the master device. The slave address of the S-35710 Series is specified to "0110010". Next, transmit "0" to the read / write bit. B7 in the 2nd byte is an address pointer. Set B7 to "0" w hen reading the wake-up time register. Next, transmit the dummy data to B6 to B1. Make sure to set B0 to "1" since it is a test bit. This processing is called "dummy write". Then transmit the start condition, the slave address and the read / write bit. The data of the wake-up time register can be read when the read / write bit is set to "1". Consequently, the data of the wake-up ti me register is output from the S-35 710 Series. Each byte from B7 is transmitted. When the read operation of the wake-up time register is finished, transmit "1" (NO_ACK) to the acknowledge after B0 output from the master device, and then transmit the stop condition. The wake-up time register is a 3-byte register. "1" is read if the read operation is performed continuously after reading 3 bytes of the wake-up time register. Regarding the wake-up time register, refer to " Configuration of Registers". Moreover, the internal address pointer is reset if recognizi ng the stop condition. Therefor e, do not transmit the stop condition after dummy write operation. T he time register is read if performing the read operation of the register after transmitting the stop condition. 19 1 81 9 18 27 36 SCL ACK ACK START ACK ACK NO_ACK STOP WU23 WU22 WU21 WU20 WU19 WU18 WU17 WU16 0100110 B1B7 B0B7 B0 B7 B0 B7 WU15 WU14 WU13 WU12 WU11 WU10 WU9 WU8 WU7 WU6 WU5 WU4 WU3 WU2 WU1 WU0 SDA Wake-up time register (3-byte) B0B7 Dummy data Dummy write Slave address (0110010) ACK START 0100110 B1R/W R/W B7 Slave address (0110010) Make sure to set B0 to "1" since it is a test bit. Input NO_ACKafter the 3rd byte transmission. Set B7 as an address pointer. *1. Set B6 to B1 to "0" or "1" since they are dummy data. : S-35710 output data : Master device input data Figure 29 Read Timing of Wake-up Time Register

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 22  Release of SDA The RST pin of the S-35710 Series does not perform the reset operation of the co mmunication interface. Therefore, the stop condition is input to reset the internal interface circuit usually. However, the S-35710 Series does not a ccept the stop condition from the master device when in the status that SDA outputs "L" (at the time of acknowledge outputting or reading) . Consequently, it is necessary to finish the acknowledge output or read operation. Figure 30 shows the SDA release method. First, input the start condition from the master device (since SDA of the S-35710 Series outputs "L", the S-35710 Series can not detect the start condition). Next, input the clocks for 1-byte data access (9 clocks) from SCL. During the time, release SDA of the master device. By this, the SDA input / output before communi cation interrupt is completed, and SDA of the S-35710 Series becomes releas e status. Continuously, if the stop condition is input, the internal circuit resets and the communication returns to normal status. It is strongly recommended that the SDA release method is performed at the time of system initialization after the power supply voltage of the master device is raised. 12 8 9 SCL SDA (S-35710 output) "L" or High-Z"L" High-Z "L" or High-Z Start condition Clocks for 1-byte data access Stop condition SDA (Master device output) "L" SDA Figure 30 SDA Release Method

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 23  Power-on Detection Circuit In order for the power-on detection circuit to operate normally, raise the power supply voltage of the IC from 0.2 V or lower so that it reaches 1.8 V of the operation power supply voltage minimum value within 10 ms, as shown in Figure 31. Within 10 ms 1.8 V (Operation power supply voltage min.)

0 V*1

0.2 V or lower

*1. 0 V means that there is no potential difference between the VDD pin and the VSS pin of the S-35710 Series. Figure 31 How to Raise Power Supply Voltage If the power supply voltage of the S-35710 Series cannot be raised under the above conditions, the power-on detection circuit may not operate normally and an oscillation may not start. In such case, perform the operations shown in "1. When power supply voltage is raised at RST pin = "L" " and "2. When power supply voltage is raised at RST pin = "H" . 1. When power supply voltage is raised at RST pin = "L" Set the RST pin to "L" until the power supply voltage reaches 1.8 V or higher. While the RST pin is set to "L", the oscillation start signal becomes "H", and the oscillation circuit normally oscillates. If the RST pin is set to "H" after the power supply voltage reaches 1.8 V, the oscillation start signal becomes "L" within 500 ms, and the oscillation status is maintained. The current consumption increases as mentioned below while the RST pin is set to "L".

• When the product without a pull-up resistor is selected: 1.7 μA typ.
• When the product with a pull-up resistor is selected: 30 μA typ.

Oscillation circuit output 10 ms Oscillation start signal "H"  "L" within 500 ms 1.8 V (Operation power supply voltage min.) *1. 0 V means that there is no potential difference between the VDD pin and the VSS pin of the S-35710 Series. Figure 32 When Power Supply Voltage is Raised at RST Pin = "L"

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 24 2. When power supply voltage is raised at RST pin = "H" Set the RST pin to "L" after the power supply voltage reaches 1.8 V or higher. If the RST pin is set to "L" for 500 ms or longer, the oscillation start signal becomes "H", and the oscillation circuit normally oscillates. After that, if the RST pin is set to "H", the oscillation start signal becomes "L" within 500 ms, and the oscillation status is maintained. The current consumption increases as mentioned below while the RST pin is set to "L".

• When the product without a pull-up resistor is selected: 1.7 μA typ.
• When the product with a pull-up resistor is selected: 30 μA typ. 10 ms 07*1 1.8 V

Oscillation circuit output (Operation power supply voltage min.) Oscillation start signal within 500 ms *1. 0 V means that there is no potential difference between the VDD pin and the VSS pin of the S-35710 Series. Figure 33 When Power Supply Voltage is Raised at RST Pin = "H" Since the RST pin has a built-in chattering elimination circuit, set the time interval of the chattering elimination width (0.25 seconds) or longer after the RST pin changes from "L" to "H", and then perform communication. Regarding the chattering elimination of the RST pin, refer to "  RST Pin ".

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 26  Example of Application Circuit VIN VOUT VSS S-19xxx VR VDD VSS SCL SDA RST INT XIN XOUT S-35710 VCC VSS VCC

12 V CPU

1 k 1 k 10 k 10 k Figure 36 Caution 1. Start communication under stable c ondition after turnig on the system power supply. 2. The above connection diagrams do not guarantee operation. Set the constants after performing sufficient evaluation using the actual application.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER S-35710 Series Rev.1.3_00 Seiko Instruments Inc. 28  Cautions When Using Crystal Oscillator Request a crystal oscillator maker for a matching assessment of the IC and the crystal. Refer to Table 10 for recommended crystal characteristics value. When using the product in an environment over Ta = +85°C, it is recommended to ensure the oscillation allowance shown in Table 10 at room temperature. Table 10 Crystal Characteristics Crystal Oscillator CL Value (Load Capacitance) R1 Value (Equivalent Series Resistance) Oscillation Allowance at Power-on 12.5 pF 80 k Ω max. 5 times or more 9.0 pF 80 k Ω max. 5 times or more 6.0 pF 80 k Ω max. 5 times or more  Precautions

• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit.
• SII claims no responsibility for any disputes arising ou t of or in connection with any infringement by products including this IC of patents owned by a third party.

FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER Rev.1.3_00 S-35710 Series Seiko Instruments Inc. 29  Characteristics (Typical Data) 1. Current consumption 1 vs. Power supply voltage characteristics 2. Current consumption 2 vs. SCL frequency characteristics Ta = +25°C, CL = 6 pF Ta = +25°C, CL = 6 pF 0.0 1.0 0.8 0.6 0.4 0.2 420 IDD1 [A] VDD [V] 1500 600 10005000 IDD2 [A] SCL frequency [kHz] 300 200 100 400 500 VDD = 5.0 V VDD = 3.0 V 3. Current consumption 1 vs. Temperature characteristics 4. Crystal oscillator frequency vs. Power supply voltage characteristics CL = 6 pF Ta = +25°C, CL = 6 pF 0.8 40 25 0 25 50 75 100 125 Ta [C] 0.0 IDD1 [A] 0.6 0.4 0.2 VDD = 5.0 V VDD = 3.0 V 20 10 420 f/f [ppm] VDD [V] 5. Crystal oscillator frequency vs. Temperature characteristics 6. Low level output current vs. Output voltage characteristics CL = 6 pF INT pin, SDA pin, Ta = +25°C 40 25 0 25 50 75 100 125450 50 150 250 350 f/f [ppm] Ta [C] 100 200 300 400 420 IOL [mA] VOUT [V] VDD = 5.0 V VDD = 3.0 V 7. High level output current vs. V DD − VOUT characteristics 8. Low level input current vs. Power supply voltage characteristics INT pin, Ta = +25°C CMOS output RST pin, Ta = +25°C Product with pull-up resistor 25 420 IOH [mA] VDD  VOUT [V] 10 15 20 VDD = 3.0 V VDD = 5.0 V 60 420 IIL [A] 30 40 50 20 10 VDD [V]

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