HI-3718 Datasheet, PDF (1/17 Pages) Holt Integrated Circuits – Line drivers have independent tri-state control

September 2015
HI-3718
3.3V ARINC 717 / ARINC 429 Transceiver
GENERAL DESCRIPTION
The HI-3718 is a low-power CMOS transceiver designed
to meet the requirements of the ARINC 717 and ARINC
429 specifications. The device acts as an interface
between ARINC 717 or ARINC 429 digital protocols and
the Harvard Bi-Phase (HBP) and/or Bi-Polar Return-to-
Zero (BPRZ) encoded physical layers.
The part includes a Harvard Bi-Phase (HBP) or Bi-Polar
Return-to-Zero (BPRZ) line receiver which produces
correct HBP or BPRZ digital signals for input to a decoder.
The device also has HBP and BPRZ line drivers capable
of accepting HBP and BPRZ encoded digital signals.
The device operates from a single +3.3V supply using
only four external capacitors, making it the ideal interface
device between an FPGA and ARINC 717 physical layer.
APPLICATIONS
• ARINC 717 physical layer interface
• 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)
The HI-3718 is available in very small 32-pin 7mm x
7mm chip-scale (QFN) and 32-pin Quad Flat Pack
(PQFP) plastic packages.
FEATURES
• Compliant with ARINC 717-15 (June 6, 2011)
and ARINC 573 standards
• BPRZ line driver and line receiver are ARINC
429 compliant
• Operates from a single +3.3V supply with on-
chip DC/DC converter
• Independent Harvard Bi-Phase and Bipolar
Return-to-Zero line drivers with digital slew rate
control: set rise/fall times to 1.5μs, 3.75 μs,
7.5μs or 10μs
• Line drivers have independent tri-state control
• HBP and BPRZ line receivers have common
inputs
• DC/DC converter may be disabled if external V+
and V- supplies are desired.
• “-40” inputs allow for DO-160G level 3 lightning
protection using only two external resistors.
• Industrial and Extended temperature ranges
NOCONV - 1
RINB-40 - 2
RINB - 3
RINA - 4
RINA-40 - 5
HBP1OUT - 6
HBP0OUT - 7
BPRZ1OUT - 8
HI-3718PQI
HI-3718PQT
HI-3718PQM
24 - OUTHA
23 - TXOUTHA
22 - TXOUTHB
21 - OUTHB
20 - OUTBA
19 - TXOUTBA
18 - TXOUTBB
17 - OUTBB
32 - Pin Plastic Quad Flat Pack
7mm x 7mm body
NOCONV - 1
RINB-40 - 2
RINB - 3
RINA - 4
RINA-40 - 5
HBP1OUT - 6
HBP0OUT - 7
BPRZ1OUT - 8
HI-3718PCI
HI-3718PCT
HI-3718PCM
24 - OUTHA
23 - TXOUTHA
22 - TXOUTHB
21 - OUTHB
20 - OUTBA
19 - TXOUTBA
18 - TXOUTBB
17 - OUTBB
32 - Pin Plastic QFN (7mm x 7mm)
DS3718 Rev. E
HOLT INTEGRATED CIRCUITS
www.holtic.com
1
09/15