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