Description
The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors 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.
PCA9555A Datasheet
