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PCA9535 - Low-voltage 16-bit I2C and SMBus low-power I/O expander

General Description

The PCA9535 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications.

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

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.

📥 Download Datasheet

Datasheet Details

Part number PCA9535
Manufacturer Nexperia
File Size 414.97 KB
Description Low-voltage 16-bit I2C and SMBus low-power I/O expander
Datasheet download datasheet PCA9535 Datasheet

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.

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PCA9535 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Rev. 1 — 25 April 2023 Product data sheet 1. General description The PCA9535 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications. It is designed for a wide voltage range of 2.3 V to 5.5 V with interrupt. 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. The PCA9535 contains a set of 8 bit Input, Output, Configuration and Polarity inversion registers. At power up all IOs default to inputs.