MAX7310 查看數據表（PDF） - Maxim Integrated

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MAX7310

2-Wire-Interfaced 8-Bit I/O Port Expander with Reset

Maxim Integrated 

2-Wire-Interfaced 8-Bit I/O Port Expander

with Reset

DATA FROM

SHIFT REGISTER

DATA FROM

SHIFT REGISTER

WRITE

CONFIGURATION

PULSE

WRITE PULSE

CONFIGURATION

REGISTER

D

Q

FF

CK

Q

D

Q

FF

CK

Q

OUTPUT

PORT

REGISTER

READ PULSE

DATA FROM

SHIFT REGISTER

WRITE POLARITY

PULSE

Figure 8. Simplified Schematic of I/O1–I/O7

INPUT

PORT

REGISTER

D

Q

FF

CK

Q

D

Q

FF

CK

Q

POLARITY

INVERSION

REGISTER

OUTPUT PORT

REGISTER DATA

V+

ESD-PROTECTION DIODE

I/O1 TO I/O7

ESD-PROTECTION DIODE

GND

INPUT PORT

REGISTER DATA

POLARITY

REGISTER DATA

12 ______________________________________________________________________________________

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