The HI-8783, HI-8784, HI-8785 products can convert 8-bit parallel data to ARINC 429 or 561 data, support high speed data bus interface and on-chip line driver option, provide SOIC packages, and support military processing options.
The HI-8783, HI-8784, and HI-8785 are ARINC 429/561 interface devices that convert 8‑bit parallel data to serial ARINC formats. The HI-8783 is a logic‑only device, while the HI-8784 and HI-8785 integrate an on‑chip line driver with 37.5 Ω and 10 Ω series resistance respectively.
The datasheet lists electrical characteristics, timing diagrams, package dimensions, and ordering information for the three parts, including operating voltage ranges, temperature limits, and driver output levels for both single‑ended and differential outputs.
| Operating Voltage | 4.75 V – 5.25 V |
|---|---|
| Minimum Input Voltage (HI) | 2.0 V |
| Maximum Input Voltage (LO) | 1.4 V |
| Operating Current Drain (100 kHz) | 0.8 mA – 2.8 mA |
| Line Driver Output (Differential) – ONE level | 9.0 V – 11.0 V |
| Industrial Temperature Range | -40 °C to +85 °C |
They require a +5 V rail plus separate ±10 V supplies for the on‑chip line driver.
The HI-8785 includes a 10 Ω series resistance on each line driver output.
The industrial screening temperature range is –40 °C to +85 °C.
Differential ONE is 9 V–11 V, NULL is –0.5 V–0.5 V, and ZERO is –11 V–‑9 V.