DESCRIPTION
●The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and were developed to enhance the Philips family of I C I/O expanders. The improvements include higher drive capability, 5V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, pushbuttons, LEDs, fans, etc.
●FEATURES
●•Operating power supply voltage range of 2.3 to 5.5 V
●•5 V tolerant I/Os
●•Polarity inversion register
●•Active-LOW interrupt output
●•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 to 400 kHz clock frequency
●•ESD protection exceeds 2000 V HBM per JESD22-A114,
●200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
●•Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA
●•Six packages offered: DIP16, SO16, SSOP16, SSOP20, TSSOP16, and HVQFN16
