MB89P147 datasheet(8/38 Pages) FUJITSU

8 / 38 page

MB89143A/144A

(Continued)

* : DIP-64P-M01

Pin no.

Pin name

Circuit type

Function

SDIP*

P31/INT1

General-purpose I/O port

This port is an N-ch open-drain outupt and hysteresis

input type. Also serves as an external interrupt. The

interrupt input is a hysteresis input type and with a built-in

noise canceller.

P30/INT0

General-purpose I/O port

This port is a hysteresis input type. Also serves as an

external interrupt. The interrupt input is a hysteresis input

type and with a built-in noise canceller.

Buzzer output-only pin

P-ch high-voltage open-drain output port

19 to 26,

11 to 18,

2 to 9

P47 to P40,

P57 to P50,

P67 to P60

P-ch high-voltage open-drain output port

N.C.

—

Be sure to leave them open.

VCC

—

Power supply pin

Also serves as an A/D converter power supply.

VSS

—

Power supply (GND) pin

AVR

—

A/D converter reference voltage input pin

AVSS

—

A/D converter power supply pin

Use this pin at the same voltage as VSS.

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