SM5221-001

SM5221 SAMHOP | Alldatasheet

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Technical content

The SM5221-001/002 is an infrared remote control encoder LSI utilizing CMOS technology. The transmission code consists of "leader pulse", "16 bit customer code", and "16 bit data code". Using Micro-processors for decoder, various applications can be realized. PIN ASSIGNMENTS (TOP VIEW) KI0 KI1 KI2 KI3 Dout V DD SEL OSCO OSCI VSS CODE KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 LED

20 PIN DIP IN 300MIL 20 PIN SOP IN 300MIL

APPLICATIONS

• Audio Remote Control * Video Remote Control * Consumer Product Remote Control

FEATURES

• 32 function keys and 3 double action keys * 64 + 6 function codes are available. (Using SEL terminal) * 65536 customer codes can be selected. (Using external R, Diode-SM5024A or internal MASK ROM-SM5024B) * 20pin SOP or DIP KI0 KI1 KI2 KI3 Dout V DD SEL OSCO OSCI VSS CODE KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 LED V.2.0 Mar 8,2002 SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

No. PIN DESCRIPTION No. Pin Name I / O Function I I I I POWER O I O POWER I KI0 KI1 KI2 KI3 DOUT VDD SEL OSCO OSCI VSS Scan Key Input 0 With Pull Low Scan Key Input 1 With Pull Low Scan Key Input 2 With Pull Low Scan Key Input 3 With Pull Low Remote Output Data Select Oscillator Output Oscillator Input O I / O I / O I / O LED KI/O7 KI/O6 KI/O5 KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 CODE Indicator For Tramsmission Key Scan 7 Key Scan 6 Key Scan 5 Key Scan 4 Key Scan 1 Key Scan 2 Key Scan 3 Key Scan 0 Customer Code Select Input Pin Name I / O Function I I I I O I I KI0 KI1 KI2 KI3 CODE SEL Remote Output Data Select Oscillator Output Oscillator Input KI/O1 KI/O4 KI/O0 KI/O2 Key Scan 4 Customer Code Select Input Indicator For Tramsmission Key Scan 6 Key Scan 7 Key Scan 5 I / O POWER O O POWER I / O OSCO VSS VDD OSCI LED DOUT KI/O7 KI/O3 KI/O5 KI/O6 Key Scan 3 Key Scan 1 Key Scan 2 I / O I / O I / O I / O I / O I / O I / O Postive Power Supply Negative Power Supply (substrate) Postive Power Supply Negative Power Supply (substrate) Scan Key Input 0 With Pull Low Scan Key Input 1 With Pull Low Scan Key Input 2 With Pull Low Scan Key Input 3 With Pull Low Key Scan 0 V.2.0 Mar 8,2002 I / O I / O I / O I / O I / O I / O SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(1) Oscillation BLOCK DIAGRAM V.2.0 Mar 8,2002 KEY INPUT/OUTPUT SCAN CIRCUIT OSC CIRCUIT KEY INPUT SCAN CIRCUIT OUTPUT CONTROL CIRCUIT OSCI OSCO DOUT CODE GENERATION CIRCUIT TIMING GENERATION & CONTROL CIRCUIT VDD Vss CODE LED KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7SEL KI3 KI0 KI1 KI2 OSCO OSCI The SM5221-001/002 oscillation circuit is designed for use of a 400 kHz or 500 kHz ceramic resonator, but there may be mutual influence between variations in the IC and ceramic resonator resulting in abnormal oscillation. The oscillation circuit starts to operate when a key is depressed. SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(2) Key Scan (3) Data Code D7 Control Page 4 V.2.0 Mar 8,2002 Data code D7 can be controlled by this pin, allowing 64 kinds of data to be transmitted. D7 is set to "0" by connecting the SEL pin to VDD, and to "1" by connecting the SEL pin to VSS. As the input of this pin is high-impedance, it must be connected to either VDD or VSS. A pull-down resistor is inserted keys are depressed simultaneously, transmission is disabled by the multi-depression prevention circuit. When a key is depressed, reading of the custom code and key data code is started, and DOUT output begins 36 ms later, so that if the key is being depressed during this 36 ms interval one transmission is performed. If a key is held down for 108 ms or longer, consecutive transmissions of the leader code only are performed while the key is depressed. Ex. f OSC = 455 kHz MIN. 36 ms Key Input 58.5 to 76.5 ms 108 ms 108 ms SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(1) DOUT Output The transmission code consists of a leader code, 16-bit custom code, and 8-bit data code. The inverse code of the data code is also sent simultaneously, giving a total configuration of 32 bits per transmission. The leader code consists of a 9 ms carrier waveform plus a 4.5 ms OFF waveform, and is used as the leader for the following code. The code uses the PPM (Pulse Position Modulation) method, with "1" and "0" diff erentiated by the time between pulses reference following di agram. Each code consists of 8 bits, and simultaneous transmission of the inverse code. Page 5 V.2.0 Mar 8,2002 DOUT Output Code C6 C0'C1 C2 C4C3 C5 C7 C1' C2' C3' C4' C5' C6' C7' D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 Leader Code Custom Code Custom Code' Data Code Data Code 9 ms 4.5 ms 13.5 ms Leader Code Custom Code 8 bits Custom Code' 8 bits Data Code 8 bits Data Code 8 bits 18 ms to 36 ms 58.5 to 76.5 ms 1.125 ms Bit 0 0.56 ms 2.25 ms Bit 1 0.56 ms SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(2) Custom Code Extension *: Pull-up resistor added to pins KI/O0 and KI/O2. C0 and C2 output without inversion (non-inverted bits). Page 6 Continous Code V.2.0 Mar 8,2002 0.56 ms11.25 ms 9 ms Carrier 26.3 DŽ s 8.77 DŽs 9 ms or 0.56 ms DOUT Output Code Leader Code Custom Code A Custom Code' B Data Code Data Code C6 C0'C1 C2 C4C3 C5 C7 C1' C2' C3' C4' C5' C6' C7' D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 C0 C1 C2 C3 C4 C5 C6 C7 The custom code can be set by the diodes connected to the CODE pin and the KI/O pins. Connecting the CODE pin and KI/O pins via diodes gives a corresponding custom code of "1", while no connection gives "0". The above output codes can be obta further extend the number of custom codes, 200 k Ω pull up resistors are added to pins KI/O0 through KI/O7,and the bit corresponding to a pin from among the custom code' outputs is output without being inverted. SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(3) Custom Code The DOUT output custom code can be set in any of 65536 ways by means of the diodes attached to the CODE (Custom Code Select) pin and the KI/O pins and the pull-up resistors attached to the KI/O pins. When a code other than code 00000000 (no diode connection) is used. (4) Custom Code Mask ROM Specification The custom code can also be set by mask ROM. When the mask ROM specification is used the custom code can be set without the connection of external diodes and resistors, and by combining external diodes and resistors with mask ROM it is possible to output a code with different contents from those set by the mask ROM. When mask ROM specification is used, (Ver. I) or (Ver. II) can be selected. * Standard product SM5221-001/002 uses the Ver. I specification Internal ROM is set as follows: Page 7 * Standard product SM5221-002 uses the Ver. II specification. V.2.0 Mar 8,2002 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C0 C1 C2 C3 C4 C5 C6 C7 C0 C1 C2 C3 C4 C5 C6 C7 ROM 1 Custom code high-order 8 bits ROM 2 Custom code' low-order 8 bits Ver. II C0, C1, C2: Determined by wiring one of pins KI/O0 thru KI/O7 to CCS pin. C3 thru C7: Determined by internal ROM3 and absence/presence of KI/O6 & KI/O7 external pull-up resistors. Determined by logical OR of internal ROM2 and external pull-up resistor (KI/O0 thru KI/O5) positions. Ver. I Custom Code' Low-Order

8 Bits

Determined by logical OR of internal ROM1 and external diode positions. Determined by logical OR of interanl ROM2 and external pull-up resistor positions Custom Code High-Order 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

Internal ROM is set as follows: Page 8 V.2.0 Mar 8,2002 ROM2 Custom code' low-order 8 bits ROM 3 C7, C6, C5,C4,C3 of Custom Code High-Order 8 Bits Pull-Up resistor ROM3 ROM 3 - 0 ROM 3 - 1 ROM 3 - 2 ROM 3 - 3 C7 C6 C5 C4 C3 0 0 0 0 0 1 0 0 1 1 1 1 1 0 1 1 0 0 0 0 No No Yes Yes KI / O6 No No Yes Yes KI / O7 C0' C1' C2' C3' C4' C5' C6' C7' 0 0 0 0 0 0 0 0 SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

(Ver. I) Internal custom code ROM1 and ROM2 (total (ROM1) corresponding to the external diodes, and 8 bits the part (ROM 2) corresponding to the external pull-up resistors. (Ver. II) With Ver. II, the CODE pin does not have the function of reading the external diodes. Internal custom code ROM2 and ROM3 (total 28 bits) are effective, with 20 bits being the part (ROM3) for setting the 4 channels of custom code C7, C6, C5, C4 and C3 as 5 bits each, and 8 bits being the part (ROM2) corresponding to the external pull-up resistors (excluding KI/O6 and KI/O7). With Ver. II 0/1 allocation to C2, C1 and C0 of the custom code high-order bits is set as shown in the following table according to the pin connection status of KI/O0 through KI/O7. Page 9 V.2.0 Mar 8,2002 CCS- KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 C2 C1 C0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 When CODE pin is open SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

Page 10 V.2.0 Mar 8,2002 D5 D6 D7 KI0 KI1 KI2 KI3 KI/O D0 D1 D2 D3 D4 Key Connection Data Code K 1 K 2 K 3 K 4 KI/O0 0 0 0 0 0 0 0/1 1 0 0 0 0 0 0 0/1 1 1 0 0 0 0 0 0/1 K 5 * K 6 K 7 K 8 KI/O1 0 0 K 9 K10 K11 K12 K13 K14 K15 K16 K17 K18 K19 K20 K21 K22 K23 K24 K25 K26 K27 K28 K29 K30 K31 K32 KI/O7 KI/O6 KI/O5 KI/O4 KI/O3 KI/O2 0 0 1 0 11 1 1 1 0 0 0 0 0 0 000 SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

When more than two keys except K21 + K22, K21 +K23 and K21 +K24 are depressed at the same time, the transmission output stops. Double key operation is useful for tape deck recording operation. Double key operation form are following. (d) No operation Page 11 V.2.0 Mar 8,2002 (b) No operation (c) No operation (a) Operation KEY K21 + K22 K21 + K23 K21 + K24 K21 Transmission D5+K22 to 24 TransmissionK21 t > 126 mspush K22 to K24 push K21 K21 Transmission No Transmission 36 ms < t < 126 ms K22 to K24 K21 No transmission -36 ms < t < 36 ms K22 to K24 K21 K22 to K24 t > 126 ms K22 to 24 Transmission No Transmission SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

This LSI has customer code table ROM on the chip. So user can generate customer codes without external parts. The customer code ROM format is following. 2) When a user selects Ver. 1, ROM1 is available for the customer code (C7 to C0) election. 3) ROM2 is available for the customer code' (C7' to C0') selection. 4) When a user selects Ver. 2, ROM3 is available for the customer code (C7 to C3) selection. And a user can select ROM3-0, ROM3-1, ROM3-2 or ROM3-3 by the KI/O6 and KI/O7 pull up resistances. Page 12 V.2.0 Mar 8,2002 C C C C C C C ROM PULL K/IO NO NO YES YES SEL UP K/IO NO YES NO YES Ver.1 or 2 SEL ROM 1 ROM 2 ROM 3 SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

ABSOLUTE MAXIMUM RATINGS (Ta = 25 ℃) RECOMMENDED OPERATING CONDITIONS V.2.0 Mar 8,2002 Characteristic Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature Symbol Value Unit VDD VIN Pd Topt Tstg 6.0 -0.3 to VDD 250 -20 to +75 -40 to +125 V V mW Characteristic Supply Voltage Oscillation Frequency Input Voltage Custom code select Pull up Resistance Symbol VDD fosc VIN Rup Min. Typ. Max. Unit 2.0 3.0 3.3 V 400 455 500 KHz

0 VDD V

160 200 240 KΩ SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

ELECTRICAL CHARACTERISTICS (Ta = 25℃, VDD = 3.0 V) V.2.0 Mar 8,2002

0.7 VDD

Pull down V IN = 0 V Pull up V IN = 3.0 V Pull down V IN = 3.0 V Characteristic Supply Voltage Current Consumption 1 Current Consumption 2 DOUT High Level Output Current DOUT Low Level Output Currenl LED High Level Output Current LED Low Level Output Current KI High Level Input Current KI Low Level Input Current KI High Level Input Voltage KI Low Level Input Voltage KI/O High Level Input Voltage KI/O Low Level Input Voltage KI/O High Level Input Current KI/O Low Level Input Current KI/O High Level Output Current KI/O Low Level Output Current CODE High Level Input Voltage CODE Low Level Input Current CODE High Level Input Current CODE Low Level Input Current Symbol VDD IDD1 IDD2 IOH1 IOL1 IOH2 IOL2 IIH1 IIL1 VIH1 VIL1 VIH2 VIL2 IIH2 IIL2 IOH3 IOL3 VIH3 IIL3 IIH4 IIL4 Min. 2.0 -15 1.3 1.0 1.1 Typ. 3.0 0.1 -8.0 -30 1.5 Max. 3.3 1.0 1.0 -0.2 VDD 0.3VDD Unit V mA Aµ mA Aµ Aµ mA A A V V V V A A mA A V A A A A µ µ µ µ µ -0.2 µ30 -10 0.2 100 2.5 -0.2 0.4 VDD CODE High Level Input Current IIH3 µ µ µ Vo = 1.7 V Vo = 2.5 V VIN = 0 V VIN = 3.0 V VIN = 0 V VIN = 3.0 V Vo = 0.3 V Vo = 2.7 V Vo = 0.3 V Vo = 1.5 V f osc = STOP f osc = 455 kHz Conditions Pull up V IN = 0 V SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0

V.2.0 Mar 8,2002 47 Fµ 455KHZ VSS OSCI OSCO SEL VDD DOUT KI3 KI2 KI1 KI0 LED KI/O7 KI/O6 KI/O5 KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 CODE VDD 200KΩ 12345678910 20191817161514131211 200pf 200pf SM5221-001/002 32 KEYS ENCODERSAMHOP Microelectronics Corp. /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0 /i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0/i0