D780232 datasheet(9/52 Pages) NEC

Part #	D780232

Description	8-BIT SINGLE-CHIP MICROCONTROLLER

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Manufacturer	NEC [NEC]

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9

µPD780232

Data Sheet U13415EJ2V0DS

3. PIN FUNCTIONS

3.1 Port Pins

Pin Name

I/O

Function

After

Alternate

Reset

Function

P00

I/O

Port 0.

Input

INTP0

3-bit I/O port.

P01

Input/output can be specified in 1-bit units.

INTP1

When used as an input port, an on-chip pull-up resistor can be specified

P02

by software.

TI

P20

I/O

Port 2.

Input

SCK3

P21

8-bit I/O port.

SO3

P22, P23

Input/output can be specified in 1-bit units.

—

P24

When used as an input port, an on-chip pull-up resistor can be specified

BUSY

P25

by software.

SO1

P26

SI1

P27

SCK1

P30 to P37

Output

Port 3.

Output

FIP24 to FIP31

P-ch open-drain 8-bit high-tolerance output port.

A pull-down resistor can be incorporated in 1-bit units to VLOAD by mask

option.

P40 to P47

Output

Port 4.

Output

FIP32 to FIP39

P-ch open-drain 8-bit high-tolerance output port.

A pull-down resistor can be incorporated in 1-bit units to VLOAD by mask

option.

P50 to P57

I/O

Port 5.

Input

FIP40 to FIP47

P-ch open-drain 8-bit high-tolerance I/O port.

Input/output can be specified in 1-bit units.

A pull-down resistor can be incorporated in 1-bit units by mask option

(Connection to VLOAD or VSS0 can be specified in 1-bit units).

P60 to P64

I/O

Port 6.

Input

FIP48 to FIP52

P-ch open-drain 5-bit high-tolerance I/O port.

Input/output can be specified in 1-bit units.

A pull-down resistor can be incorporated in 1-bit units by mask option

(Connection to VLOAD or VSS0 can be specified in 1-bit units).

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