TCA9539PWR TI I/O Expanders

The TCA9539 is a 16-bit remote I2C I/O expander with interrupt output and configuration registers, operating from a 1.65-V to 5.5-V supply. It supports I2C bus speeds up to 400 kHz, provides 16 GPIO pins that can be independently configured as inputs or outputs with built-in pull-up resistors, and includes two interrupt outputs (INT1 and INT2). Three address pins allow up to eight devices on the same bus (128 total I/Os). Packaged in a 24-pin TSSOP (PW) (7.8 mm × 4.4 mm), it is ideal for expanding GPIO capabilities of microcontrollers. Applications include portable electronics, server management, industrial controls, and automotive body electronics. In stock at HL Electronics – request a quote for fast delivery.