HI-3717A Datasheet, PDF (1/27 Pages) Holt Integrated Circuits – Compliant with ARINC 717-15

August 2015
HI-3717A
Single-Rail ARINC 717 Protocol IC
with SPI Interface
GENERAL 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 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-3717A is available in very small 44-pin 7mm x 7mm
Chip-scale (QFN) and 44-pin Quad Flat Pack (PQFP) plastic
packages.
FEATURES
· Compliant with ARINC 717-15 (June 6, 2011)
· 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
APPLICATIONS
· Digital Flight Data Acquisition Units (DFDAU)
· Digital Flight Data Recorders (DFDR)
· Quick Access Recorders (cassette type)
· Expandable Flight Data Acquisition and Recording
Systems
PIN CONFIGURATIONS (Top View)
NOCONV - 1
RINB-40 - 2
RINB - 3
RINA - 4
RINA-40 - 5
GND - 6
TFIFO - 7
TEMPTY - 8
INSYNC - 9
SYNC0 - 10
SYNC1 - 11
HI-3717APCI
HI-3717APCT
HI-3717APCM
33 - OUTHA
32 - TXOUTHA
31 - TXOUTHB
30 - OUTHB
29 - TXHB
28 - TXBA
27 - OUTBA
26 - TXOUTBA
25 - TXOUTBB
24 - OUTBB
23 - TXBB
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
HI-3717APQI
HI-3717APQT
HI-3717APQM
33 - OUTHA
32 - TXOUTHA
31 - TXOUTHB
30 - OUTHB
29 - TXHB
28 - TXBA
27 - OUTBA
26 - TXOUTBA
25 - TXOUTBB
24 - OUTBB
23 - TXBB
44 - Pin Plastic Quad Flat Pack (PQFP)
(DS3717A Rev. B)
HOLT INTEGRATED CIRCUITS
www.holtic.com
08/15