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.

Features

General features

Selectable I2

C-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



I2C-bus features

Noise filter on SCL/SDA inputs

400 kbit/s (maximum)

Compliant with I2C-bus Fast-mode

Slave mode only

SPI features

15 Mbit/s maximum speed

Slave mode only

SPI Mode 0

Applications

Factory automation and process control

Portable and battery operated devices

Cellular data devices