CXP83120A 查看數據表（PDF） - Sony Semiconductor

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CXP83120A

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP83120A/83124A

I/O Circuit Format for Pins

Pin

Circuit format

Port A

∗

Pull-up resistor

"0" when reset

Port A data

PA0/AN0

to

PA7/AN7

8 pins

PB0/CINT

PB1/CS0

PB3/SI0

PB6/SI1

4 pins

PB2/SCK0

PB5/SCK1

2 pins

Data bus

Port A direction

"0" when reset

IP Input protection

circuit

RD (Port A)

Port A input selection

"0" when reset

Input multiplexer

A/D converter

∗ Pull-up transistors

approx. 100kΩ

Port B

∗

Pull-up resistor

"0" when reset

Port B data

Data bus

Port B direction

"0" when reset

RD (Port B)

CINT

CS0

SI0

SI1

Port B

Pull-up resistor

"0" when reset

SCK OUT

Output enable

Port B output selection

"0" when reset

Port B data

Data

bus

Port B direction

"0" when reset

RD (Port B)

SCK in

IP

Schmitt input

∗ Pull-up transistors

approx. 100kΩ

∗

IP

Schmitt input

∗ Pull-up transistors

approx. 100kΩ

When reset

Hi-Z

Hi-Z

Hi-Z

–7–

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