DEI1166
Octal GND/OPEN Input, Parallel Output Interface IC

GENERAL DESCRIPTION
The DEI1166 is an eight-channel discrete-to digital interface BICMOS device. It senses eight Ground/Open discrete signals of the type commonly found in avionic systems. The data is read from the device via a parallel 3-state output.

Features:

• Eight GND/OPEN discrete inputs
  • Meets electrical requirements for ABT100 GND/OPEN discrete input.
  • Hysteresis provides noise immunity
  • Internal pull up resistor with 1mA source current to prevent dry relay contacts.
  • Internal isolation diode
  • Inputs protected from Lightning Induced Transients per DO160D, Section 22, Cat A3 and B3.
• 3.3V or 5V TTL/CMOS compatible digital IO
  • 8 tri-state outputs
  • /CS & /OE control inputs
• Logic Supply : 3.3V and 5 V
• Analog Supply : 5 to 18 V
• 24L TSSOP Package