UPD75112F datasheet(8/78 Pages) NEC

Part #	UPD75112F

Description	4-BIT SINGLE-CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

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

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8

µPD75108F,75112F,75116F

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).

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

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).

On-chip pull-up resistor can be specified bit-wise

(mask option).

Open-drain: +10 V withstand voltage

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

13).

On-chip pull-up resistor can be specified bit-wise

(mask option).

Open-drain: +10 V withstand voltage

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

14).

On-chip pull-up resistor can be specified bit-wise

(mask option).

Open-drain: +10 V withstand voltage

P00

P01

P02

P03

P10

P11

P12

P13

P20 *3

P21 *3

P22 *3

P23 *3

P30 to P33 *3

P40 to P43 *3

P50 to P53 *3

P60 to P63 *3

P70 to P73 *3

P80 to P83

*3

P90 to P93 *3

P120 to P123 *3

P130 to P133 *3

P140 to P143 *3

Input

Input *2

Input

*2

3.

PIN FUNCTIONS

3.1

PORT PINS

Input

Input/output

Input

Input/output

Dual-

Function Pin

INT4

SCK

SO

SI

INT0

INT1

INT2

INT3

PTO0

PTO1

PCL

—

I/OCircuit

Type *1

B

F

E

B

E

M

*1.

q

q : Schmitt trigger input

2.

Open-drain … high impedance

On-chip pull-up resistor … high level

3.

Direct LED drive capability

Pin Name

Input/Output

Function

×

—

8-bit I/O

After Reset

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