HD404392 데이터 시트보기 (PDF) - Renesas Electronics

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HD404392

4-bit microcomputers

Renesas Electronics 

HD404344R Series/HD404394 Series

HD404344R Series, HD4074344 Block Diagram

INT0

Interrupt

control

EVNB

Timer B

TOC

Timer C

SI

SO

SCK

AN0

AN1

AN2

AN3

Serial

interface

A/D

converter

Data bus

Large-current

pin

Bidirectional

signal line

System control

RAM

(256 × 4 bits)

W

(2 bits)

X

(4 bits)

SPX

(4 bits)

Y

(4 bits)

SPY

(4 bits)

ALU

ST

CA

(1 bit) (1 bit)

A

(4 bits)

B

(4 bits)

SP

(10 bits)

Instruction

decoder

PC

(14 bits)

ROM

(1,024 × 10 bits)

(2,048 × 10 bits)

(4,096 × 10 bits)

12

D0

D1

D2

D3

D4

D5

R00

R01

R02

R03

R10

R11

R12

R13

R20

R21

R22

R23

R30

R31

R32

R33

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