CXP80720BQ 查看數據表（PDF） - Sony Semiconductor

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CXP80720BQ

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP80712B/80716B/80720B/80724B

PIn

Circuit format

When reset

SCK0

1 pin

EXTAL

XTAL

2 pins

TEX

TX

2 pins

RST

1 pin

Internal serial clock

from serial CH0

SCK0 output enable

IP

External serial clock

to serial CH0

Schmitt input

Hi-Z

EXTAL

XTAL

TEX

TX

• Shows the circuit

composition during

IP

oscillation.

• Feedback resistor is

removed and XTAL

becomes High level

during stop.

Oscillation

• Shows the circuit

32kHz

composition during

timer counter

oscillation.

IP

• Feedback resistor is

removed during 32kHz

oscillation circuit stop

Oscillation

by software.

At this time TEX pin

outputs Low level and TX

pin outputs High level.

Mask option

Pull-up resistor

Schmitt input

OP

IP

Low level

– 11 –

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