UPD75106CW データシートの表示（PDF） - NEC => Renesas Technology

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UPD75106CW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75104, 75106, 75108

3.2 PINS OTHER THAN PORTS

Pin Name

PTH00-PTH03

TI0

TI1

PTO0

PTO1

SCK

SO

SI

INT4

INT0

INT1

INT2

INT3

PCL

X1, X2

RESET

NC*2

VDD

VSS

I/O Shared with:

Function

At Reset

Input

—

Input

—

P20

I/O

P21

I/O

P01

I/O

P02

Input

P03

Input

P00

P10

Input

P11

P12

Input

P13

I/O

P22

—

—

Input

—

—

—

—

—

—

—

4-bit variable threshold voltage analog input port

—

External event pulse inputs for timer/event counter.

Also serves as edge-detected vector interrupt input.

—

1-bit input also possible.

Outputs for timer/event counter

Input

Serial clock I/O

Serial data output

Serial data input

Edge-detected vectored interrupt input (both rising and

falling edges detected)

Edge-detected vectored interrupt inputs (valid

edge selectable)

Input

Input

Input

Input

Input

Edge-detected testable inputs (rising edge detected)

Input

Clock output

Crystal/ceramic system clock oscillator connections.

Input external clock to X1, and signal in reverse phase

with X1 to X2.

System reset input (low level active type)

No Connection

Positive power supply

GND

Input

—

—

—

—

—

I/O

Circuit

TYPE*1

N

B

E

F

E

B

B

B

B

E

—

B

—

—

—

*1: Circles indicate Schmitt trigger input pins.

2: Connect the NC pin directly to the VDD pin when µPD75P108B and a printed circuit board are shared.

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