PCA9552
Description
Any bits not used for controlling the LEDs can be used for General Purpose Parallel Input/Output (GPIO) expansion.
Key Features
- 16 LED drivers (on, off, flashing at a programmable rate)
- 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82
- Input/outputs not used as LED drivers can be used as regular GPIOs
- Internal power-on reset
- Noise filter on SCL/SDA inputs
- Active LOW reset input
- 16 open-drain outputs directly drive LEDs to 25 mA
- Edge rate control on outputs
- No glitch on power-up
- Supports hot insertion
