HI-8382

Features:

·Low power CMOS
·TTL and CMOS compatible inputs
·Programmable output voltage swing
·Adjustable ARINC rise and fall times
·Operates at data rates up to 100 Kbits
·Overvoltage protection
·Industrial and Military temperature ranges
·DSCC SMD part number


Pinout




Description

The HI-8382 and HI-8383 bus interface products are silicon gateCMOSdevices designed as a line driver in accordancewith theARINC429bus specifications.

Inputs are provided for clocking and synchronization. These signals are AND'd with the DATA inputs to enhance system performance and allow the HI-8382 to be used in a variety of applications. Both logic and synchronization inputs feature built-in 2,000V minimum ESD input protection as well as TTL andCMOScompatibility.

The differential outputs of the HI-8382 are independently programmable to either the high speed or lowspeed ARINC 429 output rise and fall time specifications through the use of two external capacitors. The output voltage swing is also adjustable by the application of an external voltage to the VREF input. The HI-8382 has on-chip Zener diodes in series with a fuse to each differential output protecting the ARINCbus froman overvoltage failure. Theoutputs eachhaveaseries resistanceof 37.5ohms.

The HI-8383 is identical to the HI-8382 except that the series resistors are 13 ohms and the overvoltage protection circuitry has beeneliminated.

The HI-8382 and HI-8383 are intended for use where logic sig nals must be converted to ARINC 429 levels such as a user ASIC or the HI-8282 ARINC 429 Serial Transmitter/Dual Receiver or theHI-6010ARINC429Transmitter/Receiver. Holt products are readily available for both industrial and military applications. Please contact the Holt Sales Department for additional information, including data sheets for the HI-8282 and HI-6010products.