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PCAL9535A - Low-voltage 16-bit I2C-bus I/O port

Description

The PCAL9535A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and reset for I2C-bus/SMBus applications.

Features

  • I2C-bus to parallel port expander.
  • Operating power supply voltage range of 1.65 V to 5.5 V.
  • Low standby current consumption:.
  • 1.5 A (typical at 5 V VDD).
  • 1.0 A (typical at 3.3 V VDD).
  • Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs.
  • Vhys = 0.10  VDD (typical).
  • 5 V tolerant I/Os.
  • Open-drain active LOW interrupt output (INT).
  • 400 kHz Fast-mode I2C-bus.
  • Internal power-on rese.

📥 Download Datasheet

Datasheet Details

Part number PCAL9535A
Manufacturer NXP Semiconductors
File Size 864.30 KB
Description Low-voltage 16-bit I2C-bus I/O port
Datasheet download datasheet PCAL9535A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
PCAL9535A Low-voltage 16-bit I2C-bus I/O port with interrupt and Agile I/O Rev. 2 — 23 January 2015 Product data sheet 1. General description The PCAL9535A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and reset for I2C-bus/SMBus applications. NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control, etc. In addition to providing a flexible set of GPIOs, the wide VDD range of 1.65 V to 5.5 V allows the PCAL9535A to interface with next-generation microprocessors and microcontrollers where supply levels are dropping down to conserve power.
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