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M34280M1-254FP Datasheet(PDF) 5 Page - Mitsubishi Electric Semiconductor |
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M34280M1-254FP Datasheet(HTML) 5 Page - Mitsubishi Electric Semiconductor |
5 / 47 page MITSUBISHI ELECTRIC 5 MITSUBISHI MICROCOMPUTERS 4280 Group SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS PORT BLOCK DIAGRAMS CLD instruction SD instruction RD instruction S R Q A2 S R Q PU02 Ai Ai D T Q (Note 2) V12 A3 D T Q R V10 CARRY Q D T R A0 A0 D T Q PU00 A1 A1 D T Q PU01 CLD instruction SD instruction RD instruction Register Y Decoder Register Y Decoder (Note 1) (Note 1) (Note 1) (Note 1) Ports D0–D6 Port D7 (Note 4) Pull-down transistor Port E0 (Note 4) Port E1 (Note 4) Port E2 (Note 4) (Note 1) (Note 1) Pull-down transistor Pull-down transistor Pull-down transistor Pull-down transistor (Note 1) To timer 1 Ports G0–G3 (Note 4) Port CARR Carrier wave output control signal TCA instruction OCRA instruction Carrier wave output circuit Register A Timer 1 underflow signal Skip decision (SZD instruction) Key-on wakeup input Key-on wakeup input Aj (Note 3) TCA instruction Register C Register A TAC instruction OEA instruction IAE instruction Register A Register A Key-on wakeup input Key-on wakeup input Register A OEA instruction IAE instruction IAE instruction Register A Key-on wakeup input OGA instruction IAG instruction Notes 1: 2: 3: 4: This symbol represents a parasitic diode. i represents bits 0 to 3. j represents bits 0 to 2. Applied voltage must be less than VDD. Aj (Note 3) Register A |
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