PCA9554N

8位I²C和SMBus I / O端口与中断 8-bit I2C and SMBus I/O port with interrupt

General description

The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output GPIO expansion for I2C-bus/SMBus applications and were developed to enhance the 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, etc.

Features

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

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, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101

Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

Packages offered: DIP16, SO16, SSOP16, SSOP20, TSSOP16, HVQFN16 2 versions: 4×4×0.85 mm and 3×3×0.85 mm, and bare die