UPD75P108BCW datasheet(7/46 Pages) NEC

Part #	UPD75P108BCW

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

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

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7

µPD75P108B

Function

4-bit input port (PORT 0).

4-bit input port (PORT 1).

4-bit input/output port (PORT 2).

Programmable 4-bit input/output port (PORT 3).

Input/output can be specified bit-wise.

4-bit input/output port (PORT 4).

Data input/output pin for program memory

(PROM) write/verify (low-order 4 bits).

4-bit input/output port (PORT 5).

Data input/output pin for program memory

(PROM) write/verify (high-order 4 bits).

Programmable 4-bit input/output port (PORT 6).

Input/output can be specified bit-wise.

4-bit input/output port (PORT 7).

4-bit input/output port (PORT 8).

4-bit input/output port (PORT 9).

N-ch open-drain 4-bit input/output port (PORT

12).

+12 V withstand voltage.

N-ch open-drain 4-bit input/output port (PORT

13).

+12 V withstand voltage.

N-ch open-drain 4-bit input/output port (PORT

14).

+12 V withstand voltage.

1.

PIN FUNCTIONS

1.1

PORT PINS

Dual-

Function Pin

INT4

SCK

SO

SI

INT0

INT1

INT2

INT3

PTO0

PTO1

PCL

—

MD0 to MD3

—

I/O Circuit

Type *1

B

F

E

B

E

M-A

*2

*1.

indicates Schmitt-triggered input.

2.

LED direct drive capability

Input/Output

Input

Input/output

Input

Input/output

Pin Name

P00

P01

P02

P03

P10

P11

P12

P13

P20

P21

P22

P23

P30 to P33

P40 to P43

P50 to P53

P60 to P63

P70 to P73

P80 to P83

P90 to P93

P120-P123

P130-P133

P140-P143

8-bit I/O

×

—

After Reset

Input

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UPD75P108BCW Datasheet(PDF) 7 Page - NEC

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