HI-8686 Holt Integrated Circuits, HI-8686 Datasheet

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HI-8686

Manufacturer Part Number
HI-8686
Description
(HI-8685 / HI-8686) ARINC INTERFACE DEVICE ARINC 429 & 561 SERIAL DATA TO 16-BIT PARALLEL DATA
Manufacturer
Holt Integrated Circuits
Datasheet
FEATURES
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(DS8685 Rev. G)
DESCRIPTION
The HI-8685 and HI-8686 are system components for
interfacing incoming ARINC 429 signals to 16-bit parallel
data using proven +5V analog/digital CMOS technology.
Both products incorporate the digital logic and analog line
receiver circuitry in a single device.
The receivers on the HI-8685 and the HI-8686 connect
directly to the ARINC 429 Bus and translate the incoming
signals to normal CMOS levels. Internal comparator levels
are set just below the standard 6.5 volt minimum data
threshold and just above the standard 2.5 volt maximum null
threshold.
incorporation of an external 10K resistance in series with
each ARINC input for lightning protection without affecting
ARINC level detection.
Both products offer high speed 16-bit parallel bus interface,
a 32-bit buffer, and error detection for word length and parity.
A reset pin is also provided for power-on initialization.
February 2001
Test lnputs bypass analog inputs
Military processing available
561 data to 16-bit parallel data
Automatic conversion of serial ARINC 429, 575 &
High speed parallel 16-bit data bus
Error detection -
Reset input for power-on initialization
On-chip line receiver
Input hysteresis of at least 2 volts
Simplified lightning protection with the ability to add
Small,
10 Kohm external series resistors
SOIC, TQFP and PLCC
surface mount, plastic
The -10 version of the HI-8685 allows the
word length
ARINC 429 & 561 Serial Data to 16-Bit Parallel Data
and
package options:
parity
HOLT INTEGRATED CIRCUITS
HI-8685, HI-8686
1
PIN CONFIGURATIONS
DATARDY
ARINC INTERFACE DEVICE
D12 - 2
D10 - 4
D11 - 3
N/C - 1
(See page 8 for additional pin configurations)
D9 - 5
D8 - 6
D7 - 7
D6 - 8
GND
D15
D14
D13
D12
D10
D11
28-Pin Plastic SOIC - WB Package
D9
D8
D7
D6
D5
D4
32-Pin PlasticTQFP Package
10
11
12
13
14
1
2
3
4
5
6
7
8
9
HI-8685PST-10
HI-8685PSI-10
HI-8686PQT
HI-8686PQI
HI-8685PST
HI-8685PSI
HI-8685
HI-8686
&
28
27
26
25
24
23
22
21
20
19
18
17
16
15
(Top View)
24 -
23 - RINB-10
22 - RINB
21 - RINA
20 - RINA-10
19 - ERROR
18 - PARITY ENB
17 - N/C
Vcc
GAPCLK
TESTA
TESTB
RESET
RINB (-10)
RINA (-10)
ERROR
PARITY ENB
READ
D0
D1
D2
D3
RESET
02/01

Related parts for HI-8686

HI-8686 Summary of contents

Page 1

... CMOS technology. Both products incorporate the digital logic and analog line receiver circuitry in a single device. The receivers on the HI-8685 and the HI-8686 connect directly to the ARINC 429 Bus and translate the incoming signals to normal CMOS levels. Internal comparator levels are set just below the standard 6 ...

Page 2

... ENB high) RINA/RINA-10 INPUT Positive direct ARINC serial data input RINB/RINB-10 INPUT Negative direct ARINC serial data input (both RINB and RINB-10 on HI-8686) RESET INPUT Internal logic states are initialized with a low level TESTA INPUT Used in conjunction with the TESTB input to bypass the built-in analog line ...

Page 3

... ARINC 561 data, clock and sync with external logic. DATABUS BIT PERIOD TYPE ( s) 429 10 429 69 - 133 575 69 - 133 561 69 - 133 HI-8685, HI-8686 CLK PARITY DETECT RXA CLOCK & DATA DATA RXB DETECT BIT COUNT GAP DETECT Figure 1 ...

Page 4

... RINA (-10) -1.50V to +1.50V -3.25V to -6.50V +3.25V to +6.50V don't care HI-8685, HI-8686 Read Byte 1st Byte 1 2nd Byte 2 FIGURE 2. ORDER OF RECEIVED DATA RESET A low on the internal logic. When mains in the initialized state until the first word gap is de- tected preventing reception of a partial word ...

Page 5

... FIGURE 3 - RECEIVER INPUT TIMING FOR ARINC 429 TESTA TESTB DERIVED DATA DERIVED CLOCK FIGURE 4 - TEST INPUT TIMING FOR ARINC 429 DERIVED DATA 32nd ARINC bit DATA RDY READ D0 - D15 FIGURE 5 - RECEIVER PARALLEL DATABUS TIMING HI-8685, HI-8686 ARINC Data Bits ARINC Data Bits ...

Page 6

... Input resistance RINA (-10) to RINB(-10) RINA (-10) or RINB(-10) to GND or V Input capacitance (Guaranteed but not tested) differential to GND HI-8685, HI-8686 RECOMMENDED OPERATING CONDITIONS Supply Voltages V .................................................+5V CC Temperature Range Industrial Screening .............. -40°C to +85°C Hi-Temp Screening .............. -55°C to +125°C Military Screening..................-55° ...

Page 7

... READ pulse width Data delay from READ READ to data floating READ to DATA RDY clear READ pulse to next READ pulse GAPCLK frequency 32nd ARINC bit to DATA RDY HI-8685, HI-8686 SYMBOL TEST CONDITIONS READ , PARITY ENA, TESTA & TESTB 5. ...

Page 8

... PIN PLASTIC SOIC - WB HI-8686PQI 32 PIN PLASTIC TQFP HI-8686PQT 32 PIN PLASTIC TQFP HI-8685PJI-10 28 PIN PLASTIC PLCC HI-8685PJT-10 28 PIN PLASTIC PLCC HI-8685PSI-10 28 PIN PLASTIC SOIC - WB HI-8685PST-10 28 PIN PLASTIC SOIC - WB Legend Wide Body HI-8685, HI-8686 D12 TESTB 5 25 D11 RESET HI-8685PJI ...

Page 9

... Body) .7055 ± .0045 (17.920 ± .114) .4065 ± .0125 (10.325 ± .318) .050 TYP (1.27) HI-8685, HI-8686 PACKAGE DIMENSIONS PIN NO. 1 IDENT .026 ± .003 x 30° (.660 ± .076 x 30°) .454 ± .002 (11.532 ± .051) SQ. SEE DETAIL A .010 ± ...

Page 10

... PIN PLASTIC THIN QUAD FLAT PACK (TQFP) .3543 BSC SQ. (9.00 BSC See Detail A .063 MAX. (1.60 MAX. HI-8685, HI-8686 PACKAGE DIMENSIONS .00057 .00022 (0.0145 .0055 .2755 BSC SQ. (7.00 BSC) .0551 .002 (1.4 .05) .0031 R MIN. .0039 .002 (0.08 R MIN.) (0.10 .05 HOLT INTEGRATED CIRCUITS 10 inches (millimeters) Package Type: 32PTQS ...

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