Avionics Data Bus – Discrete-to-Digital
Holt’s range of discrete-to-digital components, available from APC Hi-Rel, provide a robust solution for sensing open / ground and 28V / open discrete signals. These devices are typically used in simple sensing applications such as detecting open hatches or doors.
Datasheets and product information are available below.
For more information on specifying the right product for your application and requirements contact our technical sales team on 0330 124 4540 or email hi-rel@apcplc.com
| Device | Device Type | Description | Released | Click to View Datasheet |
|---|---|---|---|---|
| Device:HI-8400 | Device Type:4-channel Open/Ground or 28V/Open with galvanic isolation | Description:Galvanically isolated 4-channel discrete-to-digital sensor with SPI interface. Galvanic isolation provides 800V isolation between each of the sensors and the logic interface. | Released:2018 | Click to View Datasheet:HI-8400 Rev. New - updated 8/8/2018 |
| Device:HI-8429 | Device Type:8-channel Open/Ground or 28V/Open | Description:Octal discrete sensing device with individually configurable channels and SPI interface. Built-in lightning protection (DO-160G, Level 3). Includes sensor output interrupt pin and optional debounce... | Released:2014 | Click to View Datasheet:HI-8429 Rev. D - updated 6/7/2017 |
| Device:HI-8435 | Device Type:32-channel Open/Ground or 28V/Open | Description:Lightning protected 32-channel discrete sensing device with SPI interface. | Released:2013 | Click to View Datasheet:HI-8435 Rev. K - updated 9/24/2018 |
| Device:HI-8436 | Device Type:Low threshold 32-channel Open/Ground or 28V/Open | Description:Low Threshold lightning protected 32-channel discrete sensing device with SPI interface. | Released:2013 | Click to View Datasheet:HI-8436 Rev. F - updated 9/24/2018 |
| Device:HI-8437 | Device Type:Low threshold 32-channel sensor | Description:Low Threshold, lightning protected, 32-channel high impedance discrete sensing device with SPI interface. | Released:2013 | Click to View Datasheet:HI-8437 Rev. C - updated 9/24/2018 |
| Device:HI-8428 | Device Type:8-channel Open/Ground or 28V/Open | Description:Octal discrete sensing device with individually configurable channels and SPI interface. Built-in lightning protection (DO-160G, Level 3). Drop-in replacement for DEI1282. | Released:2014 | Click to View Datasheet:HI-8428 Rev. B - updated 6/7/2017 |
| Device:HI-8428-R | Device Type:8-channel Open/Ground or 28V/Open | Description:Octal discrete sensing device with individually configurable channels and SPI interface. Drop-in replacement for DEI1284. | Released:2014 | Click to View Datasheet:HI-8428-R Rev. A - updated 10/16/2015 |
| Device:HI-8470 | Device Type:16-channel Open/Ground or 28V/Open sensor inputs with ARINC 429 Transmitter | Description:ARINC 429 Line Driver with Built-In Lightning Protection (DO-160G, Level 3) and 16-Channel Discrete-to-Digital sensor inputs. | Released:2013 | Click to View Datasheet:HI-8470 Rev. E - updated 3/14/2019 |
| Device:HI-8425 HI-8426 | Device Type:Octal Open/Ground or 28V/Open | Description:Lightning protected octal discrete sensing device with quad low-side drivers. | Released:2012 | Click to View Datasheet:HI-8425 Rev. J - updated 3/14/2019 |
| Device:HI-8430 HI-8431 | Device Type:Octal Open/Ground or 28V/Open | Description:Lightning protected octal discrete sensing device with quad high-side drivers. | Released:2012 | Click to View Datasheet:HI-8430 Rev. H - updated 3/14/2019 |
| Device:HI-84200 | Device Type: Open/Ground, 6 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84200 Rev. New - updated 8/30/2018 |
| Device:HI-84230 | Device Type:Open/Ground, 8 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84200 Rev. New - updated 8/30/2018 |
| Device:HI-84201 | Device Type:Open/Ground, 6 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84201 Rev. New - updated 8/30/2018 |
| Device:HI-84231 | Device Type:Open/Ground, 8 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84201 Rev. New - updated 8/30/2018 |
| Device:HI-84210 | Device Type:28V/Open, 6 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84210 Rev. New - updated 8/30/2018 |
| Device:HI-84240 | Device Type:28V/Open, 8 channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released:2018 | Click to View Datasheet:HI-84210 Rev. New - updated 8/30/2018 |
| Device:HI-84220 | Device Type:Open/Ground, 8 Channels and 28V/Open, 8 Channels Lightning Protected | Description:Discrete input sensing device with internally lightning protected sensor inputs and tri-state outputs. | Released: 2018 | Click to View Datasheet:HI-84220 Rev. New - updated 8/30/2018 |
| Device:HI-8420 | Device Type:Open/Ground 6 channels | Description:Discrete input sensing device with tri-state outputs. | Released:2001 | Click to View Datasheet:HI-8420 Rev. F - updated 12/13/2013 |
| Device:HI-8423 | Device Type:Open/Ground 8 Channels | Description:Discrete input sensing device with tri-state outputs. | Released:2001 | Click to View Datasheet:HI-8420 Rev. F - updated 12/13/2013 |
| Device:HI-8421 | Device Type:28V/Open 6 Channels | Description:Discrete input sensing device with tri-state outputs. | Released:2001 | Click to View Datasheet:HI-8421 Rev. G - updated 12/13/2013 |
| Device:HI-8424 | Device Type:28V/Open 8 Channels | Description:Discrete input sensing device with tri-state outputs. | Released:2001 | Click to View Datasheet:HI-8421 Rev. G - updated 12/13/2013 |
| Device:HI-8422 | Device Type:Open/Ground 8 Channels and 28V/Open 8 Channels | Description:Discrete input sensing device with tri-state outputs. | Released:2001 | Click to View Datasheet:HI-8422 Rev. H - updated 9/10/2014 |
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