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HI-8581PJI View Datasheet(PDF) - Holt Integrated Circuits

Part NameHI-8581PJI Holt
Holt Integrated Circuits Holt
DescriptionARINC 429 Transmitter with Line Driver and Dual Receivers
HI-8581PJI Datasheet PDF : 15 Pages
First Prev 11 12 13 14 15
HI-8581, HI-8589
AC ELECTRICAL CHARACTERISTICS
Vcc = 5V, V+=10V, V- = -10V, GND = 0V, TA = Oper. Temp. Range and fclk = 1MHz +0.1% with 60/40 duty cycle
PARAMETER
CONTROL WORD TIMING
Pulse Width - CWSTR
Setup - DATA BUS Valid to CWSTR HIGH
Hold - CWSTR HIGH to DATA BUS Hi-Z
RECEIVER TIMING
Delay - Start ARINC 32nd Bit to D/R LOW: High Speed
Low Speed
Delay - D/R LOW to EN LOW
Delay - EN LOW to D/R HIGH
Setup - SEL to EN LOW
Hold - SEL to EN HIGH
Delay - EN LOW to DATA BUS Valid
Delay - EN HIGH to DATA BUS Hi-Z
Pulse Width - EN1 or EN2
Spacing - EN HIGH to next EN LOW
FIFO TIMING
Pulse Width - PL1 or PL2
Setup - DATA BUS Valid to PL HIGH
Hold - PL HIGH to DATA BUS Hi-Z
Spacing - PL1 or PL2
Delay - PL2 HIGH to TX/R LOW
TRANSMISSION TIMING
Spacing - PL2 HIGH to ENTX HIGH
Delay - 32nd ARINC Bit to TX/R HIGH
Spacing - TX/R HIGH to ENTX LOW
LINE DRIVER OUTPUT TIMING
SYMBOL
tCWSTR
tCWSET
tCWHLD
tD/R
tD/R
tD/REN
tEND/R
tSELEN
tENSEL
tENDATA
tDATAEN
tEN
tENEN
tPL
tDWSET
tDWHLD
tPL12
tTX/R
tPL2EN
tDTX/R
tENTX/R
LIMITS
MIN
TYP
MAX
80
50
10
16
128
0
200
10
10
50
100
30
80
50
80
50
10
0
840
0
50
0
Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): High Speed
Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): Low Speed
Line driver transition differential times:
(High Speed)
(Low Speed)
high to low
low to high
high to low
low to high
tENDAT
tENDAT
tfx
trx
tfx
trx
25
200
1.0
1.5
2.0
1.0
1.5
2.0
5.0
10
15
5.0
10
15
REPEATER OPERATION TIMING
Delay - EN LOW to PL LOW
tENPL
0
Hold - PL HIGH to EN HIGH
tPLEN
0
Delay - TX/R LOW to ENTX HIGH
tTX/REN
0
MASTER RESET PULSE WIDTH
tMR
400
ARINC DATA RATE AND BIT TIMING
± 1%
UNITS
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
HOLT INTEGRATED CIRCUITS
11
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GENERAL DESCRIPTION
The HI-8581 and HI-8589 from Holt Integrated Circuits are silicon gate CMOS devices for interfacing a 16-bit parallel data bus directly to the ARINC 429 serial bus. Both devices provide two receivers, an independent transmitter and line driver capability in a single package. The receiver input circuitry and logic are designed to meet the ARINC 429 specifications for loading, level detection, timing, and protocol. The transmitter section provides the ARINC 429 communication protocol and the line driver circuits provide the ARINC 429 output levels.
The 16-bit parallel data bus exchanges the 32-bit ARINC data word in two steps when either loading the transmitter or interrogating the receivers. The data bus interfaces with CMOS and TTL.
The HI-8581 has 37.5 ohms in series with each line driver output. The HI-8589 provides the option to bypass most of the internal output resistance so that external series resistance may be added for lighting protection and still match the 75 ohm characteristic impedance of the ARINC bus.

FEATURES
• ARINC specification 429 compliant
• Direct receiver and transmitter interface to ARINC bus in a single device
• 16-Bit parallel data bus
• Timing control 10 times the data rate
• Selectable data clocks
• Receiver error rejection per ARINC 429 standard
• Automatic transmitter data timing
• Parity functions
• Low power
• Self test mode
• Industrial & extended temperature ranges

 

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