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.
