PCA9535CPW datasheet(3/31 Pages) NXP

Part #	PCA9535CPW

Description	16-bit I2C-bus and SMBus, low power I/O port with interrupt

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Manufacturer	NXP [NXP Semiconductors]

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PCA9535_PCA9535C_5

Product data sheet

Rev. 05 — 15 September 2008

3 of 31

NXP Semiconductors

PCA9535; PCA9535C

16-bit I2C-bus and SMBus, low power I/O port with interrupt

4.

Block diagram

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

Fig 1.

Block diagram of PCA9535; PCA9535C

PCA9535

PCA9535C

POWER-ON

RESET

002aac217

I2C-BUS/SMBus

CONTROL

INPUT

FILTER

SCL

SDA

VDD

INPUT/

OUTPUT

PORTS

IO0_0

VSS

8-bit

write pulse

read pulse

IO0_2

IO0_1

IO0_3

IO0_4

IO0_5

IO0_6

IO0_7

INPUT/

OUTPUT

PORTS

IO1_0

8-bit

write pulse

read pulse

IO1_2

IO1_1

IO1_3

IO1_4

IO1_5

IO1_6

IO1_7

INT

A1

A0

A2

VDD

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PCA9535CPW Datasheet(PDF) 3 Page - NXP Semiconductors

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