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HI-8421

HOLTIC
Part Number HI-8421
Manufacturer HOLTIC
Description six channel discrete-to-digital interface
Published Jun 5, 2007
Detailed Description December 2013 HI-8421, HI-8424 6-Channel / 8-Channel Discrete-to-Digital Interface Sensing 28V / Open Signals DESCRIPT...
Datasheet PDF File HI-8421 PDF File

HI-8421
HI-8421

Overview
December 2013 HI-8421, HI-8424 6-Channel / 8-Channel Discrete-to-Digital Interface Sensing 28V / Open Signals DESCRIPTION The HI-8421 is a six channel discrete-to-digital interface device.
The HI-8424 has eight channels.
Mixed-signal CMOS technology is used to provide superior low-power performance.
The device inputs are configured to sense 28V / Open discrete signals.
The device outputs are CMOS / TTL compatible and may be disabled (tri-state) using the CE and OE pins.
The HI-8421 is a drop-in replacement for the DEI1054.
For added functionality, the Holt HI-8422 offers eight channels of Open / Ground sensing and eight channels of 28V / Ground sensing in a single device.
BLOCK DIAGRAM VDD OE CE IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 GND 3.
6V Reference 66 K 29 K 66 K 29 K 66 K 29 K 66 K 29 K 66 K 29 K 66 K 29 K 66 K 29 K 66 K 29 K + - + - + - + - + - + - + - + - OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 FEATURES ! 6 or 8 independent 28V / Open sensing channels ! 5.
0V single ...


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