HI-3717A中文资料ARINC 717 Protocol IC数据手册HOLT规格书

描述 Description

The HI-3717A from Holt Integrated Circuits is a CMOS device designed for interfacing an ARINC 717 compatible bus to a Serial Peripheral Interface (SPI) enabled micro-controller. The part includes selectable Harvard Bi-Phase (HBP) and Bi-Polar Return-to-Zero (BPRZ) channels with encoders/decoders and dedicated line drivers and line receivers for direct connection to the ARINC 717 bus. The part operates from a single +3.3V supply using only four external capacitors. Each transmit and receive channel has a 32-word by 12-bit FIFO for data buffering. The HI-3717A is available in very small 44-pin 7mm x 7mm Chip-scale (QFN) and 44-pin Quad Flat Pack (PQFP) plastic packages.

特性 Features

·Compliant with ARINC 717 and ARINC 573 standards
·Operates from a single +3.3V supply with on-chip converters to provide proper voltages for both Harvard Bi-Phase (HPB) and Bi-Polar Return-to-Zero (BPRZ) outputs
·One selectable receive channel as HBP or BPRZ with integrated analog line receiver
·Both HBP and BPRZ transmitters have integrated line drivers as well as digital outputs
·32-word by 12-bit FIFOs for both the receive and the transmit channel
·Programmable slew rates on transmit channels: 1.5µs, 3.75µs 7.5µs or 10µs
·Digital transmitter outputs available for use with external line drivers
·Programmable bit rates: 384, 768, 1536, 3072, 6144, 12288, 24576, 49152 and 98304 bits/sec (32, 64, 128, 256, 512, 1024, 2048, 4096 and 8192 words/sec)
·Enhanced Sync detection allows multiple false sync marks in user data while still synchronizing within 8 seconds
·Fast SPI transmitter write and receiver read modes
·Match pin flags when preprogrammed word count / subframe is received
·Frame / subframe word count indicator
·Industrial and Extended temperature ranges
·Burn-in available
 

应用 Application

·Digital Flight Data Acquisition Units (DFDAU)
·Digital Flight Data Recorders (DFDR)
·Quick Access Recorders (cassette type)
·Expandable Flight Data Acquisition and Recording Systems