* 8-bit I²C-bus GPIO with interrupt and reset * Operating power supply voltage range of 2.3 V to 5.5 V (3.0 V to 5.5 Vfor PCA9538PW/Q900) * 5 V tolerant I/Os * Polarity Inversion register * Active LOW interrupt output * Active LOW reset input * Low standby 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 Hz to 400 kHz clock frequency * ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM perJESD22-C101 * Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA * Offered in three different packages: SO16, TSSOP16 and HVQFN16