NXP Semiconductors

PCA9574

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

4.1 Ordering options

Type number

Orderable part

number

Package

Packing method

Minimum order

quantity

Temperature range

PCA9574PW

PCA9574PW,118

TSSOP16

Reel 13" Q1/T1

*standard mark SMD

2500

Tamb = -40 °C to +85 °C

PCA9574BS

PCA9574BS,118

HVQFN16

Reel 13" Q1/T1

*standard mark SMD

6000

Tamb = -40 °C to +85 °C

Table 2. Ordering options

5 Block diagram

PCA9574

POWER-ON

RESET

002aad054

I2C-BUS/SMBus

CONTROL

INPUT

FILTER

SCL

SDA

VDD

INPUT/

OUTPUT

PORTS

P0

VSS

8-bit

write pulse

read pulse

P2

P4

P6

P1

P3

P5

P7

LP

FILTER

VDD

INT

A0

RESET

VDD(IO)

Remark: All I/Os are set to inputs at power-up and RESET.

Figure 1. Block diagram of PCA9574

PCA9574

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Product data sheet

Rev. 6.0 — 31 May 2023

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