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

描述 Description

The HI-3717 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-3717 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, 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