Description
The PCA9538 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C/SMBus applications and was developed to enhance the Philips family of I2C I/O expanders.
Features
- 8-bit I2C GPIO with interrupt and reset.
- Operating power supply voltage range of 2.3 V to 5.5 V.
- 5 V tolerant I/Os.
- Polarity inversion register.
- Active LOW interrupt output.
- Active LOW reset input.
- Low stand-by current.
- Noise filter on SCL/SDA inputs.
- No glitch on power-up.
- Internal power-on reset.
- 8 I/O pins which default to 8 inputs.
- 0 kHz to 400 kHz clock frequency.
- ESD prote.
PCA9538 Datasheet
