CXP81724A 查看數據表（PDF） - Sony Semiconductor

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CXP81724A

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP81720A/81724A

PIn

Circuit format

When reset

SCK0

1 pin

Internal serial clock

from SIO

SCK0 output enable

External serial clock to SIO

IP

Schmitt input

Hi-Z

EXTAL

XTAL

2 pins

TEX

TX

2 pins

RST

1 pin

MP

1 pin

EXTAL

XTAL

TEX

TX

IP

IP

• Shows the circuit

composition during

oscillation.

• Feedback resistor is

removed during stop.

XTAL becomes "H"

level.

Oscillation

32kHz

timer counter

• Shows the circuit

composition during

oscillation.

• Feedback resistor is

removed during 32kHz

oscillation circuit stop

by software.

At this time TEX pin

outputs "L" level and TX

pin outputs "H" level.

Oscillation

Mask option

Pull-up resistor

Schmitt input

OP

IP

L level

IP

CPU mode

Hi-Z

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