PCA9554PW/Q900,118

PCA9554PW/Q900,118 is a 8bit I²C-bus and SMBus I/O port with interrupt. It provided 8 bits of general-purpose parallel input/output (GPIO) expansion for I²C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I²C-bus I/O expanders. The improvements include higher drive capability, 5 V 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, push buttons, LEDs, fans, and so on. It consists of an 8bit Configuration register (input or output selection), 8bit input port register, 8bit output port register and an 8bit Polarity Inversion register (active HIGH or active LOW operation). The data for each input or output is kept in the corresponding input port or output port register.

• Operating power supply voltage range from 2.3V to 5.5V
• 5V tolerant I/Os, polarity Inversion register, active LOW interrupt output
• 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
• SCL clock frequency range from 0 to 100KHz (Standard-mode I²C-bus0
• ESD protection exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101
• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100mA, AEC-Q100 qualified
• Supply voltage range from 2.3 to 5.5V (VDD = 2.3V to 5.5V, VSS = 0V, Tamb = -40 to +85°C)
• Supply current is 104µA typ (operating mode, VDD = 5.5V, no load, fSCL = 100KHz, Ta = -40 to +85°C)
• TSSOP16 package, ambient temperature range from -40 to +85°C