HD404812 Просмотр технического описания (PDF) - Renesas Electronics

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производитель

HD404812

4-Bit Single-Chip Microcomputer

Renesas Electronics 

Block Diagram

HD404818 Series

INT0

INT1

External

interrupt

control

circuit

Timer A

Timer B

TIMO

Timer C

SI

SO

SCK

Serial

interface

VCref

COMP0

COMP1

Compa-

rator

V1

V2

V3

COM1

COM2

COM3

COM4

SEG1

SEG2

SEG3

SEG31

SEG32

LCD

driver

circuit

System control circuit

RAM

(1,184 × 4 bits)

W (2 bits)

X (4 bits)

SPX (4 bits)

Y (4 bits)

SPY (4 bits)

ALU

CPU

ST CA

(1 bit) (1 bit)

A (4 bits)

B (4 bits)

SP (10 bits)

Instruction

decoder

PC (14 bits)

ROM

(2,048 × 10 bits)

(4,096 × 10 bits)

(6,144 × 10 bits)

(8,192 × 10 bits)

D0

D1

D2

D3

D4

D5

D6

High-

current

pins

D7

D8

D9

D10

D11

D12

D13

R00

R01

R02

R03

R10

R11

R12

R13

R20

R21

R22

R23

R30

R31

R32

R33

: Data bus

: Signal lines

9

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