33984

Dual 4.0m? Max High-Side Switch with Parallel Input or SPI Control
6.0 V to 27 V Operating Voltage with Standby Currents < 5.0 A
Output Current Monitoring with Two SPI-Selectable Current Ratios
SPI Control of Overcurrent Limit, Overcurrent Fault Blanking Time, Output-OFF Open Load Detection, Output ON/OFF Control, Watchdog Timeout, Slew Rates, and Fault Status Reporting
SPI Status Reporting of Overcurrent, Open and Shorted Loads, Overtemperature, Undervoltage and Overvoltage Shutdown, Fail-Safe Pin Status, and Program Status
Enhanced -16 V Reverse Polarity V  Protection PWR

The SPI interface has a full duplex, three-wire synchronous ata transfer with four I/O lines associated with it: Serial Clock SCLK), Serial Input (SI), Serial Output (SO), and Chip Select CS).

The SI/SO terminals of the 33984 follow a first-in first-out (D7/D0) protocol with both input and output words transferring the most significant bit (MSB) first. All inputs are compatible with 5.0 V CMOS logic levels.

The SPI lines perform the following functions: