PCA9654EDTR2G

The PCA9654E/PCA9654EA has 64 programmable slave addresses that can be used. These addresses are selected using the address pins AD2, AD1, and AD0, allowing for a wide range of options for device addressing on the I2C bus.

The operating range for VDD of the PCA9654E/PCA9654EA is 1.65 V to 5.5 V.

The PCA9654E/PCA9654EA is an 8-bit I/O expander for I2C bus and SMBus with interrupt capabilities. It provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C−bus/SMBus applications. The device is designed to indicate to the system master when an input state has changed by activating the open-drain interrupt output. Additionally, it allows up to 64 devices to share the same I2C−bus/SMBus by varying the fixed I2C bus address through hardware pins AD0, AD1, and AD2. The PCA9654E/PCA9654EA features various functions such as VDD Operating Range of 1.65 V to 5.5 V, SDA Sink Capability of 30 mA, 5.5 V Tolerant I/Os, Polarity Inversion Register, Low Standby Current, Noise Filter on SCL/SDA Inputs, and supports I2C SCL Clock Frequencies of Standard Mode: 100 kHz, Fast Mode: 400 kHz, and Fast Mode +: 1 MHz.