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| 64 KEYS ENCODER SM5025A/B GENERAL DESCRIPTION The SM5025A/B 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. FEATURE * Low voltage operation ......VDD = 2.0 to 3.3V * Low power consumtpion ..... IDD < 1 A at standby mode * 64 function keys and 3 double action keys * 128 + 6 function codes are available. (Using SEL terminal) * 65536 customer codes can be selected. (Using external R, Diode-SM5025A or internal MASK ROM-SM5025IRB) * 24pin SOP or DIP APPLICATIONS 1. Audio Remote Control 2. Video Remote Control 3. Consumer Product Remote Control PIN ASSIGNMENTS KI2 KI3 KI4 KI5 KI6 KI7 Dout VDD SEL OSCO OSCI VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 KI1 KI0 CODE KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 LED KI2 KI3 KI4 KI5 KI6 KI7 Dout VDD SEL OSCO OSCI VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 KI1 KI0 CODE KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7 LED 24 PIN DIP IN 300MIL 24 PIN SOP IN 300MIL Page 1 V.1.0 |
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