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