UPD754264 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD754264

4-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

2. BLOCK DIAGRAM

µPD754264

PTO0/P30

PTO1/P31

PTO2/P32

BASIC INTERVAL

TIMER/WATCHDOG

TIMER

INTBT RESET

8-BIT TIMER

COUNTER#0

INTT0

TOUT

INTT1

8-BIT

TIMER

COUNTER#1 CASCADED

16-BIT

TIMER

8-BIT

COUNTER

TIMER

COUNTER#2

INTT2

INT0/P61

KRREN

KR4/P70 to

KR7/P73

4

INTERRUPT

CONTROL

AVREF/P60

AN0/P62

AN1/P63

A/D CONVERTER

SP (8)

CY

ALU

PROGRAM COUNTER

SBS

BANK

GENERAL REG.

PROGRAM MEMORY

(ROM)

4096 × 8 BITS

DATA MEMORY

(RAM)

128 × 4 BITS

EEPROM

32 × 8 BITS

DECODE

AND

CONTROL

PORT3 4 P30 to P33

PORT6 4 P60 to P63

PORT7 4 P70 to P73

PORT8

P80

BIT SEQ. BUFFER (16)

fX/2N

CPU φCLOCK

CLOCK SYSTEM CLOCK STAND BY

DIVIDER GENERATOR CONTROL

X1 X2

IC VDD VSS RESET

6

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