DEI1066

www.DataSheet4U.com Device Engineering Incorporated 385 East Alamo Drive Chandler, AZ 85225 Phone: (480) 303-0822 Fax: (480) 303-0824 E-mail: [email protected] DEI1066 OCTAL GND/OPEN INPUT, SERIAL OUTPUT INTERFACE IC FEATURES Eight GND/OPEN discrete inputs o Meet electrical requirements for ABD0100 GND/OPEN discrete input. 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 DO160D, Section 22, Cat A3 and B3. 3-wire serial interface (/CS, CLK, DO) o Direct interface to Serial Peripheral Interface (SPI) port. o TTL/CMOS compatible inputs and Tristate output o 10MHz Data Rate o Serial input to expand Shift Register Logic Supply Voltage (VCC): 3.3V or 5V Analog Supply Voltage (VDD): 5V to 18V 16L NB SOIC package 16L Ceramic SO Package PIN ASSIGNMENTS DIN1 DIN2 DIN3 DIN4 DIN5 DIN6 DIN7 DIN8 1 16 VDD GND VCC GND SDIN /CS SCLK DOUT DEI1066 Figure 1 DEI1066 Pin Assignment (16 Lead NB SOIC) ©2006 Device Engineering Inc Page 1 of 11 DS-MW-01066-01 Rev E 08/25/2006 www.DataSheet4U.com FUNCTIONAL DESCRIPTION The DEI1066 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 an eight-bit serial shift register with 3-state output. This serial interface is compatible with the indu...