UPD75P048CW datasheet(6/40 Pages) NEC

Part #	UPD75P048CW

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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6

µPD75P048

1.

PIN FUNCTIONS

1.1

PORT PINS (1/2)

Pin Name

P00

P01

P02

P03

P10

P11

P12

P13

P20

P21

P22

P23

P30 Note 2

P31 Note 2

P32 Note 2

P33 Note 2

P40 - P43 Note 2

P50 - P53 Note 2

I/O Circuit

Type Note 1

-A

-B

-C

E-B

M-A

Input/

Output

Input

I/O

Input

I/O

Shared

INT4

SCK

SO/SB0

SI/SB1

INT0

INT1

INT2

TI0

PTO0

PPO

PCL

BUZ

MD0

MD1

MD2

MD3

–

When Reset

Input

High

impedance

High

impedance

8-Bit

I/O

×

Function

4-bit input port (PORT0).

For P01 to 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).

Can withstand 10 V.

Data input/output pins for the PROM

write and verity (Four low-order bits).

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

Can withstand 10 V.

Data input/output pins for the PROM

write and verify (Four high-order bits).

B

F

M

B

F

Note 1. The circle (

) indicates the Schmitt trigger input.

2. Can directly drive LEDs.

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UPD75P048CW Datasheet(PDF) 6 Page - NEC

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Similar Part No. - UPD75P048CW

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