UPD75108AGC-XXX-AB8 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD75108AGC-XXX-AB8

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75104A, 75108A

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

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

Input

Serial data output

Input

Serial data input

Input

Edge-detected vectored interrupt input (both rising and

falling edges detected)

Input

Edge-detected vectored interrupt inputs (valid

edge selectable)

Input*2

Edge-detected testable inputs (rising edge detected)

Input*2

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 -A

B -A

E

—

B

—

—

—

*1: Circles indicate Schmitt trigger input pins.

2: With pull-up resistor connected: high level

Without pull-up resistor connected: high impedance

9

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