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