The PCF8574 is an I2C GPIO expander that does simple transfers. It has eight GPIO pins, and it only does simple transfers. How does that work, given it does both input and output? Well ...

We’ve gotten used to the GPIO-available functions of Raspberry Pi ... the Raspberry Pi 4 has six SPI controllers, six I2C controllers, and six UARTs – all on its 40-pin header.

Texas Instruments has officially unveiled the MSPM0C1104, which it claims to be the world's smallest microcontroller. This ...

SAMSUNG 11nm Flip-Chip IO library with dynamically switchable 1.8V/3.3V GPIO with fail-safe capability, 5V I2C / SMBUS open-drain cell, 5V OTP cell, 1.8V & 3.3V analog cells, and associated ESD. A key ...

This flip-chip compatible library in Dongbu HiTek 130nm features a fail-safe GPIO, two standard GPIOs, a 5V GPI, and 5V I2C-compliant ODIO. The GFGPIO is a highly configurable 5V tolerant, ...