PCA9575 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

PCA9575

16-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt

NXP Semiconductors. 

NXP Semiconductors

PCA9575

16-bit I2C-bus and SMBus, level translating, low voltage GPIO

data from

shift register

data from

shift register

write

configuration

pulse

write pulse

read pulse

configuration

register

D

Q

FF

CK Q

DQ

FF

CK

output port

register

input port

register

D

Q

FF

CK

VDD(IO)

BUS-HOLD

AND

PULL-UP/PULL-DOWN

CONTROL

100 kΩ

Q1

Q2

ESD

protection

diode

INTERRUPT

MASK

output port

register data

VDD(IO)

P0_0 to P0_7

P1_0 to P1_7

VSS

input port

register data

to INT

data from

shift register

write polarity

pulse

polarity

inversion

register

D

Q

FF

CK

Fig 2. Simplified schematic of the I/Os (P0_0 to P0_7, P1_0 to P1_7)

polarity

inversion

register data

002aad566

PCA9575_3

Product data sheet

Rev. 03 — 9 November 2009

© NXP B.V. 2009. All rights reserved.

5 of 38

Share Link: