UPD178024 datasheet(13/58 Pages) RENESAS

13 / 58 page

µPD178023, 178024

Data Sheet U14126EJ2V0DS00

1. PIN FUNCTION LIST

1.1 Port Pins

Pin Name

I/O

Function

At Reset

Shared by:

P00-P04

I/O

Port 0.

Input

INTP0-INTP4

7-bit I/O port.

P05, P06

Can be set in input or output mode in 1-bit units.

—

P10-P15

Input

Port 1.

Input

ANI0-ANI5

6-bit input port.

P30-P32

I/O

Port 3.

Input

—

P33

8-bit I/O port.

TI50

P34

Can be set in input or output mode in 1-bit units.

TI51

P35

—

P36

BEEP0

P37

—

P40-47

I/O

Port 4.

Input

—

8-bit I/O port.

Can be set in input or output mode in 1-bit units.

Internal pull-up resistors can be specified in software.

Interrupt function by key input is provided.

P50-P57

I/O

Port 5.

Input

—

8-bit I/O port.

Can be set in input or output mode in 1-bit units.

P60-P67

I/O

Port 6.

Input

—

8-bit I/O port.

Can be set in input or output mode in 1-bit units.

P70

I/O

Port 7.

Input

SI3

P71

8-bit I/O port.

SO3

P72

Can be set in input or output mode in 1-bit units.

SCK3

P73

—

P74

RXD0

P75

TXD0

P76

SDA0

P77

SCL0

P120-P125

I/O

Port 12.

Input

—

6-bit I/O port.

Can be set in input or output mode in 1-bit units.

P130

Output

Port 13.

Low-level

TO50

P131

3-bit output port.

output

TO51

P132

N-ch open-drain output port (12 V withstand)

—

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