Eight GND/OPEN discrete inputs
o Meets electrical requirements for ARINC 735A GND/OPEN discrete inputs
o Hysteresis provides noise immunity
o Internal pull up resistor with 1mA source current to prevent dry relay contacts.
o Internal isolation diode
o Inputs protected from Lightning Induced Transients per DO160, Section 22, Level 3 pin injection
· 3-wire serial interface (/CS, CLK, DOUT)
o Direct interface to Serial Peripheral Interface (SPI) port.
o TTL/CMOS compatible inputs and Tristate output
o 10 MHZ Data Rate
o Serial input to expand Shift Register
· Logic Supply Voltage (VCC): 3.3 V or 5 V
· Analog Supply Voltage (VDD): 15 V ±10%
· Pin compatible with DEI1066
· 16L NB SOIC package