UPD754144 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD754144

4-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

2. BLOCK DIAGRAM

µPD754144, 754244

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

PTH00/P62

PTH01/P63

PROGRAMMABLE

THRESHOLD

PORT

SP (8)

CY

ALU

PROGRAM COUNTER

SBS

BANK

GENERAL REG.

PROGRAM MEMORY

(ROM)

4096×8 BITS

DATA MEMORY

(RAM)

128×4 BITS

EEPROM

16×8 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

CL1 CL2 X1 X2

Apply to the Apply to the

µPD754144 µPD754244

IC VDD VSS RESET

8

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