UPD75P0076CU View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD75P0076CU

4-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD75P0076

3. PIN FUNCTIONS

3.1 Port Pins

Pin name

P00

P01

I/O Alternate function

Function

I INT4

I/O SCK

This is a 4-bit input port (PORT0).

For P01 to P03, on-chip pull-up resistors are

software-specifiable in 3-bit units.

8-bit

accessible

Not

available

After

reset

Input

I/O circuit

typeNote 1

<B>

<F>-A

P02

I/O SO/SB0

<F>-B

P03

I/O SI/SB1

<M>-C

P10

I INT0

This is a 4-bit input port (PORT1).

Not

Input

<B>-C

Connections of on-chip pull-up resistors are

available

P11

INT1

software-specifiable in 4-bit units. P10/INT0

can select a noise elimination circuit.

P12

TI1/INT2

P13

TI0

P20

I/O PTO0

This is a 4-bit I/O port (PORT2).

Not

Input

E-B

Connections of on-chip pull-up resistors are

available

P21

PTO1

software-specifiable in 4-bit units.

P22

PCL

P23

BUZ

P30

I/O MD0

P31

MD1

P32

MD2

This is a programmable 4-bit I/O port (PORT3).

Not

Input

E-B

Input and output can be specified in single-bit available

units. Connections of on-chip pull-up resistors

are software-specifiable in 4-bit units.

P33

MD3

P40Note 2

P41Note 2

P42Note 2

I/O D0

D1

D2

This is an N-ch open-drain 4-bit I/O port

Available

High

(PORT4). In the open-drain mode, withstands

impedance M-E

up to 13 V. Also used as data I/O pin

(lower 4 bits) for program memory (PROM)

write/verify.

P43Note 2

D3

P50Note 2

P51Note 2

P52Note 2

I/O D4

D5

D6

This is an N-ch open-drain 4-bit I/O port

(PORT5). In the open-drain mode, withstands

up to 13 V. Also used as data I/O pin

(upper 4 bits) for program memory (PROM)

write/verify.

High

impedance M-E

P53Note 2

D7

P60

I/O KR0/AN4

This is a programmable 4-bit I/O port (PORT6).

Not

Input

<Y>-D

Input and output can be specified in single-bit available

P61

KR1/AN5

units. Connections of on-chip pull-up resistors

are software-specifiable in 4-bit units.

P62

KR2/AN6

P63

KR3/AN7

P110

P111

I AN0

AN1

This is a 4-bit input port (PORT11).

Not

Input

Y-A

available

P112

AN2

P113

AN3

Notes 1. Circuit types enclosed in brackets indicate Schmitt triggered inputs.

2. Low-level input current leakage increases when input instructions or bit manipulation instructions are executed.

6

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