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PDF HI-8448 Data sheet ( Hoja de datos )
| Número de pieza | HI-8448 | |
| Descripción | (HI-8444 - HI-8448) Quad / Octal ARINC 429 Line Receivers | |
| Fabricantes | Holt Integrated Circuits | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HI-8448 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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January 2003
HI-8444, HI-8445, HI-8448
Quad / Octal ARINC 429 Line Receivers
DESCRIPTION
PIN CONFIGURATIONS
The HI-8444 and HI-8445 are quad ARINC 429 line
receiver ICs available in a 20-pin TSSOP package. The HI-
8448 contains 8 independent ARINC 429 line receivers.
The technology is analog / digital CMOS. The device is
designed to operate from either a 5V or 3.3V supply. Each
receiver channel translates incoming ARINC 429 data bus
signals to a pair of TTL / CMOS outputs.
The optional HI-8444-10, HI-8445-10 and HI-8448-10 are
designed to be used with an external 10 Kohm series
resistor. The “-10” devices meet the lightning protection
requirements of DO-160C/D level 3, waveforms 3, 4, and
5A.
The TESTA and TESTB inputs bypass the analog inputs for
testing purposes. They force the receiver outputs to the
specified ZERO, ONE or NULL state. The ARINC inputs
are ignored when the device is in the test mode.
IN1 A 1
20 OUT1 A
IN1 B 2
19 OUT1 B
IN2 A 3 HI-8444PS 18 OUT2 A
IN2 B
4
HI-8444PS-10
&
17 OUT2 B
TESTA (8444 only) 5 HI-8445PS 16 VDD
TESTB (8444 only) 6 HI-8445PS-10 15 VSS
IN3 A 7
Quad
Receiver
14 OUT3 A
IN3 B 8
13 OUT3 B
IN4 A 9
12 OUT4 A
IN4 B 10
11 OUT4 B
The HI-8445 is identical to the HI-8444 except the TESTA
and TESTB pins are not available.
20 Pin Plastic TSSOP package
FEATURES
DataSheet4U.com
! Direct ARINC 429 quad or octal line receivers in small
footprint packages
DataShee
! 3.3V or 5.0V single supply operation
! Test inputs bypass analog inputs and force digital
outputs to a one, zero, or null state
! ARINC inputs are internally lightning protected per DO-
160C/D level 3 (-10 configuration only)
! Military processing options available
FUNCTION TABLE
ARINC INPUTS TESTA TESTB OUTA OUTB
INA - INB
-2.5 to +2.5 V 0 0 0 0
< -6.5 V
0 0 01
> +6.5 V
0 0 10
X 0 1 01
X 1 0 10
X 1 1 00
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IN2 BX - 1
IN2 AY - 2
IN2 BY - 3
N/C - 4
TESTA(X) - 5
TESTB(X) - 6
TESTA(Y) - 7
TESTB(Y) - 8
IN3 AX - 9
IN3 BX - 10
IN3 AY - 11
HI-8448PQ
HI-8448PQ-10
Octal
Receiver
33 - OUT2 BX
32 - OUT2 AY
31 - OUT2 BY
30 - N/C
29 - VDD
28 - N/C
27 - VSS
26 - N/C
25 - OUT3 AX
24 - OUT3 BX
23 - OUT3 AY
44-Pin Plastic Quad Flat Pack (PQFP)
(DS8444 Rev. C)
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HOLT INTEGRATED CIRCUITS
www.holtic.com
01/03
1 page  
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TIMING DIAGRAMS
HI-8444, HI-8445, HI-8448
IN A
IN B
tLH
OUT A
1.5V
tHL
tLH
TEST A
/
TEST B
OUT A
/
tHL OUT B
1.5V
tTOH
1.5V
tTOL
OUT B
1.5V
ARINC 429 Receiver Timing
Test Mode Timing
INTERNAL LIGHTNING PROTECTION (-10 Only)
The HI-8444-10, HI-8445-10 and HI-8488-10 are similar to the The HI-8444-10, HI-8445-10 and HI-8448-10 will meet the
“non -10” configurations with the exception that an external requirements of DO-160D, Level 3, waveforms 3, 4 and 5A with
et4U.com10 Kohm resistor must be added in series with each ARINC input the 10 Kohm series resistors in place.
DataShee
in order to properly detect the ARINC 429 specified input
thresholds. This option is especially useful in applicationsDwathaeSreheet4PUle.acsoemrefer to the Holt AN-300 Application Note for additional
external lightning protection circuitry is required.
information and recommendations on lightening protection of Holt
Line Drivers and Receivers.
ORDERING INFORMATION
PART
NUMBER
PACKAGE
DESCRIPTION
TEMPERATURE PROCESS EXTERNAL BURN LEAD
RANGE
FLOW RESISTOR IN FINISH
HI-8444PSI
20 PIN PLASTIC TSSOP
-40°C TO +85°C
I
None
NO SOLDER
HI-8444PSI-10
20 PIN PLASTIC TSSOP
-40°C TO +85°C
I
10KW
NO SOLDER
HI-8444PST
20 PIN PLASTIC TSSOP
-55°C TO +125°C
T
None
NO SOLDER
HI-8444PST-10
20 PIN PLASTIC TSSOP
-55°C TO +125°C
T
10KW
NO SOLDER
HI-8445PSI
20 PIN PLASTIC TSSOP
-40°C TO +85°C
I
None
NO SOLDER
HI-8445PSI-10
20 PIN PLASTIC TSSOP
-40°C TO +85°C
I
10KW
NO SOLDER
HI-8445PST
20 PIN PLASTIC TSSOP
-55°C TO +125°C
T
None
NO SOLDER
HI-8445PST-10
20 PIN PLASTIC TSSOP
-55°C TO +125°C
T
10KW
NO SOLDER
HI-8448PQI 44 PIN PLASTIC QUAD FLATPACK (PQFP) -40°C TO +85°C
HI-8448PQI-10 44 PIN PLASTIC QUAD FLATPACK (PQFP) -40°C TO +85°C
I
I
None
10KW
NO SOLDER
NO SOLDER
HI-8448PQT 44 PIN PLASTIC QUAD FLATPACK (PQFP) -55°C TO +125°C
HI-8448PQT-10 44 PIN PLASTIC QUAD FLATPACK (PQFP) -55°C TO +125°C
T
T
None
10KW
NO SOLDER
NO SOLDER
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HOLT INTEGRATED CIRCUITS
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet HI-8448.PDF ] | |
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