资 源 简 介
1FEATURES• Low Standby Current ConsumpTIon of1 mA Max• I2C to Parallel Port Expander• Open-Drain AcTIve-Low Interrupt Output• OperaTIng Power-Supply Voltage Range of2.3 V to 5.5 V• 5-V Tolerant I/O Ports• 400-kHz Fast I2C Bus• Three Hardware Address Pins Allow up toEight Devices on the I2C/SMBus• Allows Up to 16 Devices on the I2C/SMBusWhen Used in ConjuncTIon with the PCA9534ASee Table 1 for I2C Expander offerings• Input/Output Configuration Register• Polarity Inversion Register• Internal Power-On Reset• Power-Up With All Channels Configured asInputs• No Glitch on Power Up• Noise Filter on SCL/SDA Inputs• Latched Outputs With High-Current DriveMaximum Capability for Directly Driving LEDs• Latch-Up Performance Exceeds 100 mA PerJESD 78, Class II• ESD Protection Exceeds JESD 22– 2000-V Human-Body Model (A114-A)– 200-V Machine Model (A115-A)– 1000-V Charged-Device Model (C101)
