UPD7554AA データシートの表示（PDF） - NEC => Renesas Technology

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UPD7554AA

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

P00/INT0

CLOCK

CONTROL

CP TIMER/EVENT

COUNTER

CL

INT0

P01/SCK P03/SI

P02/SO

TEST

CONTROL

SERIAL

INTERFACE

PROGRAM COUNTER (10)

ALU

PROGRAM MEMORY

1024 × 8 BITS

INSTRUCTION

DECODER

C

A (4)

GENERAL REGISTERS

H (2)

L (2)

STACK POINTER (6)

CL φ

SYSTEM

CLOCK

GENERATOR

STANDBY

CONTROL

DATA MEMORY

64 × 4 BITS

CL1 CL2(P83)

VDD

VSS

RESET

PORT0

BUFFER

4 P00–P03

PORT8

LATCH

BUFFER

3 P80–P82

P83 (CL2)

PORT10

LATCH

BUFFER

4 P100–P103

PORT11

LATCH

BUFFER

4 P110–P113

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