PCA9538A 查看數據表（PDF） - NXP Semiconductors.

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PCA9538A

Low-voltage 8-bit I2C-bus I/O port with interrupt and reset

NXP Semiconductors. 

NXP Semiconductors

4. Block diagram

PCA9538A

Low-voltage 8-bit I2C-bus I/O port with interrupt and reset

A0

A1

SCL

SDA

VDD

RESET

INPUT

FILTER

POWER-ON

RESET

8-bit

I2C-BUS/SMBus

CONTROL

write pulse

read pulse

INPUT/

OUTPUT

PORTS

P0

P1

P2

P3

P4

P5

P6

P7

VDD

VSS

PCA9538A

LP

INT

FILTER

002aah416

Remark: All I/Os are set to inputs at reset.

Fig 1. Block diagram of PCA9538A

PCA9538A

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 1 — 28 September 2012

© NXP B.V. 2012. All rights reserved.

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