MAX7317

10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection

Status

Active: In Production.

Description

FULL DATA SHEET (PDF, 296kB)
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The MAX7317 serial-interfaced peripheral provides microprocessors with 10 I/O ports rated to 7V. Each port can be individually configured as either an opendrain output, or an overvoltage-protected Schmitt input.

The MAX7317 supports hot insertion. All port pins remain high impedance in power-down (V+ = 0V) with up to 8V asserted on them.

The MAX7317 is available in 16-pin thin QFN and QSOP packages and operates in the -40��C to +125��C range.

For a similar part with constant-current outputs and 8-bit PWM controls, refer to the MAX6966/MAX6967 data sheet.

Key Features		Applications/Uses
High-Speed, 26MHz SPI™-/QSPI-™/MICROWIRE™- Compatible Serial Interface 2.25V to 3.6V Operation I/O Port Inputs are Overvoltage Protected to 7V I/O Port Outputs are 7V-Rated Open Drain I/O Ports Support Hot Insertion 0.7µA (typ), 1.9µA (max) Standby Current Tiny 3mm x 3mm, 0.8mm High Thin QFN Package -40��C to +125��C Temperature Range		Automotive Cell Phones Industrial Controllers Portable Equipment System Monitoring White Goods