PCA9539 Datasheet Low-voltage 16-bit I2c And Smbus Low-power I/o Expander

Manufacturer: Nexperia

Overview: PCA9539 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Rev. 1 — 25 April 2023 Product data sheet 1.

Datasheet Details

Part number	PCA9539
Manufacturer	Nexperia
File Size	435.32 KB
Description	Low-voltage 16-bit I2C and SMBus low-power I/O expander
Datasheet	PCA9539-nexperia.pdf

General Description

The PCA9539 provides 16 bits of General Purpose Input/Output (GPIO) expansion with interrupt and reset for I²C-bus/SMBus applications.

It is designed for a wide voltage range of 2.3 V to 5.5 V.

Nexperia GPIO expanders provide an elegant solution when additional IOs are needed while keeping the interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs and fan control.

Key Features

I²C-bus to parallel port expander.
Operating power supply voltage range of 2.3 V to 5.5 V.
Ultra low standby current consumption:.
1 µA (maximum).
Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs.
Vhys = 0.10 × VCC (typical).
Noise filter on SCL and SDA inputs.
5 V tolerant I/Os.
16 I/O pins which power up configured in input state.
Open-drai.

PCA9539 Distributor

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