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PCA9502 Datasheet 8-bit I/O expander

Manufacturer: NXP Semiconductors

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General Description

The PCA9502 is an 8-bit I/O expander with I2C-bus/SPI host interface.

The device comes in a very small HVQFN24 package, which makes it ideally suitable for hand-held, battery operated applications.

The device also supports software reset, which allows the host to reset the device at any time, independent of the hardware reset signal.

Overview

PCA9502 8-bit I/O expander with I2C-bus/SPI interface Rev.

4 — 23 February 2016 Product data sheet 1.

Key Features

  • 2.1 General features.
  • Selectable I2C-bus or SPI interface.
  • 3.3 V or 2.5 V operation.
  • Industrial temperature range: 40 C to +85 C.
  • Eight programmable I/O pins.
  • Software reset.
  • Industrial and commercial temperature ranges.
  • Available in HVQFN24 package.
  • 16 hardware-selectable slave addresses 2.2 I2C-bus features.
  • Noise filter on SCL/SDA inputs.
  • 400 kbit/s (maximum).
  • Compliant with I2C-bus Fast-mode.
  • Slave mode only 2.3 SPI features.

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