4501 查看數據表（PDF） - MITSUBISHI ELECTRIC

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产品描述 (功能)

比赛名单

4501

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

4501 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

Key-on wakeup input

“L” level

detection circuit

Register A

Ai

(Note 2)

Ai

IAP1 instruction

D

OP1A instruction T Q

Pull-up transistor

K1i (Note 2)

PU1i (Note 2)

(Note 1)

P10, P11 (Note 3)

Key-on wakeup input

K12

“L” level

detection circuit

W21

W20

Clock input for timer 2 event counter

IAP1 instruction

Register A

A2

A2

OP1A instruction

D

TQ

W60

0

Timer 1 or timer 2 underflow

1

signal divided by 2

Pull-up transistor

PU12

(Note 1)

P12/CNTR (Note 3)

Key-on wakeup input

K13

“L” level

detection circuit

K13

External 0 interrupt External interrupt circuit

IAP1 instruction

Register A

A3

A3

OP1A instruction

D

TQ

Pull-up transistor

PU13

(Note 1)

P13/INT (Note 3)

Notes 1:

This symbol represents a parasitic diode on the port.

2: i represents 0 or 1.

3: Applied potential to port P1 must be VDD or less.

Port block diagram (3)

9

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