HD404668 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD404668

Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

Hitachi -> Renesas Electronics 

Block Diagram

HD404669 Series

HMCS400 CPU

DD01

ROM

RAM

DDDD2345

D9

INT0

INT1

External interrupt

DDDD11110123

INT2

control circuit

INT3

INT4

8-bit timer A

(free-running timer)

RRR000012

R03

R10

R11

RR1123

TOC

8-bit timer C

RR2201

R22

R23

EVND

TOD

8-bit timer D

R30

RRR333123

SCK1

SI1

SO1

Synchronous 8-bit

serial interface

RRR444012

R43

VTref

TONER

TONEC

DTMF generation

circuit

RRR666012

R63

R70

VCref

COMP0

COMP1

Comparator

RRR777123

RR8801

R82

R83

RRR999012

R93

RRAA01

RRDD01

RE0

: Data bus

: Signal line

9

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