TCA6424ARGJR TI I/O Expanders

The TCA6424ARGJR is a 24-bit I²C-bus and SMBus I/O expander from Texas Instruments in 32-pin QFN (RGJ) package, featuring 24 general-purpose I/O ports. For selection, verify supply from 1.65V to 5.5V, I²C clock up to 400kHz, outputs sink/source up to 25mA per pin, interrupt output for GPIO status change, three hardware address pins allowing up to eight devices on the bus, and operating temperature from -40°C to +85°C. Features include programmable polarity inversion, internal power-on reset, and low standby current of 2µA typical. Ideal for LED control, keypad and switch matrix scanning, sensor interfacing, and GPIO expansion. In stock at HL Electronics – request a quote for fast delivery.