GENERAL DESCRIPTION

The HI-8436 is a 32-channel discrete-to-digital sensor fabricated with Silicon-on-Insulator (SOI) technology

designed to interface with a Serial Peripheral Interface (SPI).

Four banks of 8 sense inputs can be programmed as either GND/Open or Supply/Open sensors. Supply/Open

sensing is also referred to as 28V/Open sensing.

FEATURES

Robust CMOS Silicon-on-Insulator (SOI) technology

32-channel Programmable Sense Operation, GND/Open or Supply/Open, 4 X 8 Input Sensors

Programmable HI/LO Threshold and Hysteresis in 0.1V steps, from 0.4V to 5.2V.

Single Low Voltage Supply Operation for low thresholds applications.

Logic Operation from 3.0V to 3.6V

20 MHz Serial Peripheral Interface (SPI)

Lightning Protected Sense Inputs

Internal Self-Test

APPLICATION

Avionics Discrete to Digital Sensing