UPD78F0034A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD78F0034A

8-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)

3. PIN FUNCTIONS

3.1 Port Pins (1/2)

Pin Name I/O

Function

P00

P01

P02

P03

P10 to P17

P20

P21

P22

P23

P24

P25

P30

P31

P32

P33

P34

P35

P36

P40 to P47

P50 to P57

P64

P65

P66

P67

I/O Port 0

4-bit I/O port.

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

An on-chip pull-up resistor can be specified by software.

Input

I/O

Port 1

8-bit input-only port.

Port 2

6-bit I/O port.

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

An on-chip pull-up resistor can be specified by software.

I/O Port 3

N-ch open-drain I/O port.

7-bit I/O port.

LEDs can be driven directly.

Input/output can be specified

in 1-bit units.

An on-chip pull-up resistor can be

specified by software.

I/O Port 4

8-bit I/O port.

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

An on-chip pull-up resistor can be specified by software.

Interrupt request flag KRIF is set to 1 by falling edge detection.

I/O Port 5

8-bit I/O port.

LEDs can be driven directly.

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

An on-chip pull-up resistor can be specified by software.

I/O Port 6

4-bit I/O port.

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

An on-chip pull-up resistor can be specified by software.

After Reset

Alternate

Function

Input

INTP0

INTP1

INTP2

INTP3/ADTRG

Input

ANI0 to ANI7

Input

Input

SI30

SO30

SCK30

RxD0

TxD0

ASCK0

–

Input

SDA0Note 1

SCL0Note 1

SI31Note 2

SO31Note 2

SCK31Note 2

AD0 to AD7

Input

A8 to A15

Input

RD

WR

WAIT

ASTB

Notes 1. SDA0 and SCL0 are incorporated only in the µPD78F0034BY and 78F0034BY(A).

2. SI31, SO31, and SCK31 are incorporated only in the µPD78F0034B and 78F0034B(A).

Data Sheet U16369EJ1V0DS

13

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