NXP Semiconductors

PCA9574

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

• Compliant with I2C-bus Standard-mode (100 kHz)

• Separate supply rails for core logic and I/O bank provides voltage level shifting

• 1.1 V to 3.6 V operation with level shifting feature

• Very low standby current: < 1 μA

• 8 configurable I/O pins that default to inputs at power-up

• Outputs:

– Totem pole: 1 mA source and 3 mA sink

– Independently programmable 100 kΩ pull-up or pull-down for each I/O pin

– Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins

programmed as inputs

• Inputs:

– Programmable bus hold provides valid logic level when inputs are not actively driven

– Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change

or to prevent spurious interrupts default to mask at power-up

– Polarity inversion register allows inversion of the polarity of the I/O pins when read

• Active LOW reset (RESET) input pin resets device to power-up default state

• GPIO All Call address allows programming of more than one device at the same time with the same

parameters

• 2 programmable target addresses using 1 address pin

• -40 °C to +85 °C operation

• ESD protection exceeds 7000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

• Packages offered: TSSOP16 and HVQFN16

3 Applications

• Cell phones

• Media players

• Multi voltage environments

• Battery operated mobile gadgets

• Motherboards

• Servers

• RAID systems

• Industrial control

• Medical equipment

• PLCs

• Gaming machines

• Instrumentation and test measurement

4 Ordering information

Package

Type number

Topside

marking

Name

Description

Version

PCA9574PW

PCA9574

TSSOP16

plastic thin shrink small outline package; 16 leads; body width 4.4

mm

SOT403-1

PCA9574BS

P74

HVQFN16

plastic thermal enhanced very thin quad flat package; no leads;

16 terminals; body 3 × 3 × 0.85 mm

SOT758-1

Table 1. Ordering information

PCA9574

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Product data sheet

Rev. 6.0 — 31 May 2023

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