UPD75P068GB-3B4 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD75P068GB-3B4

4 BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75P068

1. PIN FUNCTIONS

1.1 PORT PINS

Pin

P00

P01

P02

P03

P10

P11

P12

P13

P20

P21

P22

P23

P30Note 2

P31Note 2

P32Note 2

P33Note 2

P40-P43Note 2

P50-P53Note 2

P60

P61

P62

P63

P110

P111

P112

P113

Input/

output

Input

I/O

I/O

I/O

Input

I/O

I/O

I/O

I/O

I/O

Input

Shared pin

Function

INT4

SCK

SO/SB0

SI/SB1

INT0

INT1

INT2

TI0

PTO0

—

PCL

BUZ

MD0

MD1

MD2

MD3

—

—

KR0/AN4

KR1/AN5

KR2/AN6

KR3/AN7

AN0

AN1

AN2

AN3

4-bit input port (PORT0).

For P01-P03, pull-up resistors can be

provided by software in units of 3 bits.

With noise elimination function

4-bit input port (PORT1).

Pull-up resistors can be provided by

software in units of 4 bits.

4-bit I/O port (PORT2).

Pull-up resistors can be provided by

software in units of 4 bits.

Programmable 4-bit I/O port (PORT3).

I/O can be specified bit by bit.

Pull-up resistors can be provided by

software in units of 4 bits.

N-ch open-drain 4-bit I/O port (PORT4).

Withstand voltage of 10 V

Data input-output (low-order 4 bits) when

writing to and verifying program memory

(PROM)

N-ch open-drain 4-bit I/O port (PORT5).

Withstand voltage of 10 V

Data input-output (high-order 4 bits)

when writing to and verifying program

memory (PROM)

Programmable 4-bit I/O port (PORT6).

Pull-up resistors can be provided by

software in units of 4 bits.

4-bit input port (PORT11)

8 bit

I/O

×

×

×

×

q

×

×

I/O

When reset circuit

typeNote 1

B

Input

F -A

F -B

M -C

Input

B -C

Input

E-B

Input

E-B

High

Impedance

M-A

High

Impedance

M-A

Input

Y -D

Input

Y-A

Notes 1. The circle (q) indicates the Schmitt trigger input.

2. Can directly drive the LED.

5

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