TCA6424ARSMR datasheet(5/33 Pages) TI

No de pièce	TCA6424ARSMR

Description	LOW-VOLTAGE 24-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT RESET AND CONFIGURATION REGISTERS

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Fabricant	TI [Texas Instruments]

Site Internet	http://www.ti.com

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5 / 33 page

Data From

Shift Register

Write Configuration

Pulse

Write Pulse

Read Pulse

Write Polarity Pulse

Polarity

Inversion

Register

Input

Port

Register

Output

Port

Register

Configuration

Register

VCCP

GND

Input Port

Register Data

Polarity

Register Data

ESD Protection Diode

P00 to P27

Output Port

Register Data

To INT

Q1

Q2

D

FF

CK

Q

D

FF

C

K

Q

D

FF

CK

Q

D

FF

CK

Q

Data From

Shift Register

Data From

Shift Register

TCA6424A

www.ti.com

SCPS193B – JULY 2010 – REVISED SEPTEMBER 2010

Simplified Schematic of P00 to P27

A.

On power up or reset, all registers return to default values.

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Product Folder Link(s): TCA6424A

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