CXP81720A View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXP81720A

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP81720A/81724A

PIn

Port I

Circuit format

Port I data

PI1/RMC

PI4/INT1/NMI

PI7/SI1

3 pins

Port I direction

Data bus

RD (Port I)

PI1: To remote control circuit

PI4: To interruption circuit

PI7: To serial CH1

Port I

Port I function

select

IP

Schmitt input

PI5/SCK1

PI6/SO1

2 pins

From serial CH1

Port I data

Port I direction

Data bus

RD (Port I)

Port J

Port J data

MPX

MPX

IP

Note)

PI5 is schmitt input

PI6 is inverter input

To serial CH1

PJ0

to

PJ7

8 pins

Port J direction

IP

Data bus

RD

(Port J)

Standby release

Edge detection

CS0

SI0

2 pins

Schmitt input

IP

To SIO

When reset

Hi-Z

Hi-Z

Hi-Z

Hi-Z

SO0

1 pin

SO0 from SIO

SO0 output enable

Hi-Z

– 10 –

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