MAX7310

www.DataSheet4U.com 19-2698; Rev 3; 2/05 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset General Description 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 may 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. ♦ 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 Features MAX7310 Applications Servers RAID Systems Industrial Control Medical Equipment Instrumentation, Test Measurement SMBus is a trademark of Intel Corp. Purchase of I2C components of Maxim Integrat...