NCA9539 Datasheet Low-voltage 16-bit I2C and SMBus low-power I/O expander

Manufacturer: Nexperia

NCA9539 low-voltage 16-bit i2c and smbus low-power i/o expander by Nexperia - Datasheet Preview

Datasheet Details

Part number	NCA9539
Manufacturer	Nexperia
File Size	466.45 KB
Description	Low-voltage 16-bit I2C and SMBus low-power I/O expander
Datasheet	NCA9539 Datasheet

General Description

The NCA9539 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 1.65 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.

Overview

NCA9539 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Rev.

2 — 18 October 2023 Product data sheet 1.

Key Features

I²C-bus to parallel port expander.
Operating power supply voltage range of 1.65 V to 5.5 V.
Low standby current consumption:.
2.5 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-drain a.

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