MB89997 datasheet(7/42 Pages) FUJITSU

Part #	MB89997

Description	8-bit Proprietary Microcontroller

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Manufacturer	FUJITSU [Fujitsu Component Limited.]

Direct Link	http://edevice.fujitsu.com/fmd/en/index.html

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7

MB89990 Series

s PIN DESCRIPTION

(Continued)

*1: FPT-28P-M17

*2: DIP-28P-M03

*3: MQP-48C-P01

Pin no.

Pin name

Circuit type

Function

SOP*1,

SH-DIP*2

MQFP*3

7

31

X0

A

Clock oscillation pins

832

X1

5

29

TEST

B

Test input pin

This pin is connected directly to VSS.

630

RST

C

Reset I/O pin

This pin consists of an N-ch open-drain output with

a pull-up resistor and hysteresis input.

A low level is output from this pin by internal source.

The internal circuit is initialized at the input of a low

level.

24,

25,

26,

27

12,

13,

23,

24

P00/INT20,

P01/INT21,

P02/INT22,

P03/INT23

G

General-purpose I/O ports

Also serve as external interrupt input pins.

External interrupt input is hysteresis input type.

1 to 4

25 to 28

P04/INT24 to

P07/INT27

D

General-purpose I/O ports

Also serve as external interrupt input.

External interrupt input is hysteresis input type.

17

5

P30

D

General-purpose I/O port

Also serves as a serial I/O clock I/O.

The serial I/O clock input is hysteresis input type

with a built-in noise filter.

16

4

P31

E

General-purpose I/O port

Also serves as a serial I/O data output pin.

15

3

P32

D

General-purpose I/O port

Also serves as a serial I/O data input pin.

The serial I/O data input is hysteresis input type

with a built-in noise filter.

14

2

P33/EC

D

General-purpose I/O port

Also serves as an external clock input pin for the 8-

bit timer/counter.

External clock input of the 8-bit timer/counter is

hysteresis input type with a built-in noise filter.

13

1

P34/TO/INT10

D

General-purpose I/O port

Also serves as the overflow output and external

interrupt input for the 8-bit timer/counter.

External interrupt input is hysteresis input type with

a built-in noise filter.

12,

11

48,

34

P35/INT11,

P36/INT12

D

General-purpose I/O port

Also serve as external interrupt input pins.

External interrupt input is hysteresis input type with

a built-in noise filter.

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