The MAX7310 provides 8-bit parallel input/output port expansion for SMBus™-compatible and I²C-compatible applications. The MAX7310 consists of an input port register, an output port register, a polarity inversion register, a configuration register, a bus timeout register, and an SMBus/I²C-compatible serial interface. The system master can invert the MAX7310 input data by writing to the active-high polarity inversion register. The system master can enable or disable bus timeout by writing to the bus timeout register. Any of the eight I/O ports can be configured as input or output. An active-low reset input sets the eight I/Os as inputs. Three address-select pins configure one of 56 slave ID addresses. The MAX7310 is available in 16-pin thin QFN, TSSOP, and QSOP packages and is specified over the -40°C to +125°C automotive temperature range. Applications * Cellular Handsets * Desktop Computers: Motherboards * GPIO * Industrial Control * Industrial Displays * Instrumentation and Test Measurement * Medical Equipment * RAID Systems * Servers * White LED Drivers * 400kHz 2-Wire Interface * 2.3V to 5.5V Operation * Low Standby Current (1.7µA typ) * Bus Timeout for Lock-Up-Free Operation * 56 Slave ID Addresses * Polarity Inversion * Eight I/O Pins that Default to Inputs on Power-Up * 5V Tolerant Open-Drain Output on I/O0 * 4mm x 4mm, 0.8mm Thin QFN Package * -40°C to +125°C Operation https://elecena.pl/product/22332807/2-wire-interfaced-8-bit-i-o-port-expander-with-reset 2022-12-28 https://elecena.pl/product/22332807/2-wire-interfaced-8-bit-i-o-port-expander-with-reset 2025-01-18