MB89P945PF データシートの表示（PDF） - Fujitsu

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MB89P945PF

8-bit Proprietary Microcontroller

Fujitsu 

MB89940 Series

(Continued)

Pin no.

QFP*1

MQFP*2

37

37

Pin name

P31/TEMPO

38,

38,

P32/PWM1P,

39

39

P33/PWM1M

40,

40,

P34/PWM2P,

41

41

P35/PWM2M

44

44

P36/TEMPI

45

45

P37/FUELI

46

46

P40/PW

3, 4

3, 4

P41/COM0 to

8, 9

8, 9

P44/COM3

47

47

VINT

7

7

VCC

19

19

VSS

1

1

AVCC

43

43

AVSS

36

36

DVCC

42

42

DVSS

*1: FPT-48P-M16

*2: MQP-48C-P01

Circuit

type

G

G

G

M

M

L

K

—

—

—

—

—

—

—

Function

This pin can be used for the bit 1 of Port 3 or the

output from PWM4.

The function of this pin can be switched by setting

the internal register of PWM4. This output has a high

drive-current capability.

These pins are the pair of high-current driver outputs

for one of two motor coils.

They can be also used for the bits 2 and 3 of Port 3

by setting the internal register of the stepper motor

controller.

These pins are the pair of high-current driver outputs

for one of two motor coils.

They can be also used for the bits 4 and 5 of Port 3

by setting the internal register of the stepper motor

controller.

This analog input is connected to channel 1 of the

A/D converter.

It can also be used for the bit 6 of Port 3 when this

A/D input enable register bit is set to ‘0’.

This analog input is connected to channel 0 of the

A/D converter.

It can also be used for the bit 7 of Port 3 when this

A/D input enable register bit is set to ‘0’.

This pin has two functions.

When this pin is used as an open-drain output of

Port 4, the external voltage monitor reset should be

in the power down mode.

When it is used as the PW input of external voltage

monitor reset, the corresponding bit of the port data

register should be set to ‘1’.

These pins are the LCD common signal outputs.

When LCD is not used, these pins can be also used

for Port 4.

An external capacitor should be connected to this

pin for stabilizing the internal 3.0 V power supply.

For MB89PV940 and MB89P945, this pin should be

left open.

VCC

VSS

The power supply pin for the analog circuit

The same voltage should be applied as VCC.

The power supply pin for the analog circuit

The same voltage should be applied as VSS.

The dedicated power supply pin for the high-current

driver output

The same voltage should be applied as VCC.

The dedicated power supply pin for the high-current

driver output

The same voltage should be applied as VSS.

7

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