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)

3.1 Port Pins (2/2)

Pin Name I/O

Function

P70

I/O Port 7

P71

6-bit I/O port.

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

P72

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

P73

P74

P75

After Reset

Alternate

Function

Input

TI00/TO0

TI01

TI50/TO50

TI51/TO51

PCL

BUZ

3.2 Non-Port Pins (1/2)

Pin Name I/O

Function

After Reset

Alternate

Function

INTP0

INTP1

Input External interrupt request input by which the valid edge (rising edge,

falling edge, or both rising and falling edges) can be specified.

Input

P00

P01

INTP2

P02

INTP3

P03/ADTRG

SI30

SI31Note 1

SDA0Note 2

Input

I/O

Serial interface serial data input.

Serial interface serial data input/output

Input

P20

P34

Input

P32

SO30

Output Serial interface serial data output.

SO31Note 1

Input

P21

P35

SCK30

I/O

SCK31Note 1

SCL0Note 2

Serial interface serial clock input/output.

Input

P22

P36

P33

RxD0

Input Serial data input for asynchronous serial interface.

Input

P23

TxD0

Output Serial data output for asynchronous serial interface.

Input

P24

ASCK0

Input Serial clock input for asynchronous serial interface.

Input

P25

TI00

Input

External count clock input to 16-bit timer/event counter 0.

Capture trigger signal input to capture register 01 (CR01) of 16-bit timer/

event counter 0.

Input

P70/TO0

TI01

Capture trigger signal input to capture register 00 (CR00) of 16-bit timer/

P71

event counter 0.

TI50

External count clock input to 8-bit timer/event counter 50.

P72/TO50

TI51

External count clock input to 8-bit timer/event counter 51.

P73/TO51

TO0

Output 16-bit timer/event counter 0 output.

Input

P70/TI00

TO50

8-bit timer/event counter 50 output (shared with 8-bit PWM output).

Input

P72/TI50

TO51

8-bit timer/event counter 51 output (shared with 8-bit PWM output).

P73/TI51

PCL

Output Clock output (for trimming of main system clock and subsystem clock).

Input

P74

BUZ

Output Buzzer output.

Input

P75

AD0 to AD7 I/O Lower address/data bus for extending memory externally.

Input

P40 to P47

Notes 1. SI31, SO31, and SCK31 are incorporated only in the µPD78F0034B and 78F0034B(A).

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

14

Data Sheet U16369EJ1V0DS

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