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HI-3717PQI Datasheet(PDF) 1 Page - Holt Integrated Circuits |
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HI-3717PQI Datasheet(HTML) 1 Page - Holt Integrated Circuits |
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1 / 23 page  GENERAL 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 a selectable Harvard Bi-Phase (HBP) or Bi-Polar Return-to-Zero (BPRZ) receive channel and transmit channels with HBP and BPRZ encoders and line drivers. The receive channel has integrated analog line receivers and the transmit channels have integrated line drivers for the corresponding encoding method (HBP and BPRZ). 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. PIN CONFIGURATIONS (Top View) Single-Rail ARINC 717 Protocol IC with SPI Interface November 2011 HI-3717 (DS3717 Rev. B) 11/11 44 - Pin Plastic 7mm x 7mm Chip-Scale Package (QFN) NOCONV - 1 RINB-40 - 2 RINB - 3 RINA - 4 RINA-40 - 5 GND - 6 TFIFO - 7 TEMPTY - 8 INSYNC - 9 SYNC0 - 10 SYNC1 - 11 33 - 32 - TXOUTHA 31 - TXOUTHB 30 - OUTHB 29 - TXHB 28 - TXBA 27 - OUTBA 26 - TXOUTBA 25 - TXOUTBB 24 - OUTBB 23 - TXBB OUTHA HI-3717PCI HI-3717PCT HI-3717PCM HOLT INTEGRATED CIRCUITS www.holtic.com 44 - Pin Plastic Quad Flat Pack (PQFP) HI-3717PQI HI-3717PQT HI-3717PQM NOCONV - 1 RINB-40 - 2 RINB - 3 RINA - 4 RINA-40 - 5 GND - 6 TFIFO - 7 TEMPTY - 8 INSYNC - 9 SYNC0 - 10 SYNC1 - 11 33 - 32 - TXOUTHA 31 - TXOUTHB 30 - OUTHB 29 - TXHB 28 - TXBA 27 - OUTBA 26 - TXOUTBA 25 - TXOUTBB 24 - OUTBB 23 - TXBB OUTHA FEATURES · Compliant with ARINC 717 and ARINC 573 standards · · · · · μ μ μ · · · · · · · · 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: 1.5 s, 7.5 s or 10 s 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 APPLICATIONS · Digital Flight Data Acquisition Units (DFDAU) · · · Digital Flight Data Recorders (DFDR) Quick Access Recorders (cassette type) Expandable Flight Data Acquisition and Recording Systems |
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