Avionics data bus remote terminal ICs for MIL STD 1553 use introduced by Holt

MISSION VIEJO, Calif., 15 Sept. 2009. Avionics data bus IC specialist Holt Integrated Circuits in Mission Viejo, Calif., is introducing the 3.3-volt HI-6120 and HI-6121 MIL STD 1553 small avionics data bus remote terminal solutions with dual transceivers in compact surface-mount plastic packages.

Sep 15th, 2009

MISSION VIEJO, Calif., 15 Sept. 2009.Avionicsdata bus IC specialist Holt Integrated Circuits in Mission Viejo, Calif., is introducing the 3.3-volt HI-6120 and HI-6121 MIL STD 1553 small avionics data bus remote terminal solutions with dual transceivers in compact surface-mount plastic packages.

The HI-6120 avionics data bus interface IC uses a 16-bit parallel host bus interface in a 100-pin PQFP package. The HI-6121 uses a four-wire serial peripheral host Interface (SPI) and comes in a 52-pin PQFP or 64-pin QFN.

The 64-pin QFN measures 9 by 9 by 1 millimeter, and both devices handle the MIL-STD-1553 protocol, including message encoding, decoding, error detection, illegal command detection, and data buffering. Host data management is simplified by storing message information and data within the on-chip 32K-by-16-bit static RAM.

Key features include programmable memory management with as many as four data buffering modes, internal illegalization capability for subaddress, command T/R bit, broadcast vs non-broadcast, and word count or mode code (4096 combinations), simplified mode command handling, programmable interrupts with 16-interrupt log buffer, optional illegal command detection and optional broadcast command recognition.

The HI-6120 and HI-6121 can also be configured for automatic self-initialization. A dedicated SPI port reads data from an external serial EEPROM memory to configure the internal RAM, illegalization table and host interrupts.

The devices operate in industrial temperature ranges of -40 to 85 degrees Celsius, or in extended temperature range of -55 to 125 C. Optional burn-in is available on the extended temperature range. RoHS compliant lead-free options are also offered.

For more information contact Holt Integrated Circuits online at www.holtic.com.

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