PCA9534

INTEGRATED CIRCUITS PCA9534 8-bit I2C and SMBus, low power I/O port with interrupt Product data sheet Supersedes data of 2003 Dec 02 2004 Sep 30 Philips Semiconductors Philips Semiconductors Product data sheet 8-bit I2C and SMBus low power I/O port with interrupt PCA9534 DESCRIPTION The PCA9534 is a16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and was developed to enhance the Philips family of I2C 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 8-bit I2C GPIO 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 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 kHz to 400 kHz clock frequency ESD protection exceeds 2000 V HBM per JESD22-A114, Latch-up testing is done to JESDEC Standard JESD78 which Offered in three different packages: SO16, TSSOP16, and HVQFN16 exceeds 100 mA 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 The PCA9534 consist of an 8-bit Configuration register (Input or Output selection); 8-bit Input regist...