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HI-8444, HI-8445, HI-8448
Quad / Octal ARINC 429 Line Receivers
September 2006
DESCRIPTION
The HI-8444 and HI-8445 are quad ARINC 429 line receiver ICs available in a 20-pin TSSOP package. The HI8448 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. The HI-8445 is identical to the HI-8444 except the TESTA and TESTB pins are not available.
PIN CONFIGURATIONS
IN1 A IN1 B IN2 A IN2 B TESTA (8444 only) TESTB (8444 only) IN3 A IN3 B IN4 A IN4 B
1 2 3 4 5 6 7 8 9 10 20 19
OUT1 A OUT1 B OUT2 A OUT2 B VDD VSS OUT3 A OUT3 B OUT4 A OUT4 B
HI-8444PS HI-8444PS-10 & HI-8445PS HI-8445PS-10 Quad Receiver
18 17 16 15 14 13 12 11
20 Pin Plastic TSSOP package
FEATURES
! ! ! !
- IN2 AX - IN1 BY - IN1 AY - IN1 BX - IN1 AX - N/C - OUT1 AX - OUT1 BX - OUT1 AY - OUT1 BY - OUT2 AX
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
!
Direct ARINC 429 quad or octal line receivers in small footprint packages 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 DO160C/D level 3 (-10 configuration only) Military processing options available
44 43 42 41 40 39 38 37 36 35 34
HI-8448PQ HI-8448PQ-10 Octal Receiver
FUNCTION TABLE
ARINC INPUTS TESTA TESTB OUTA OUTB INA - INB -2.5 to +2.5 V < -6.5 V > +6.5 V X X X 0 0 0 0 1 1 0 0 0 1 0 1 0 0 1 0 1 0 0 1 0 1 0 0
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. D)
HOLT INTEGRATED CIRCUITS www.holtic.com
IN3 BY - 12 IN4 AX - 13 IN4 BX - 14 IN4 AY - 15 IN4 BY - 16 N/C - 17 OUT4 BY - 18 OUT4 AY - 19 OUT4 BX - 20 OUT4 AX - 21 OUT3 BY - 22
09/06
HI-8444, HI-8445, HI-8448
BLOCK DIAGRAMS
IN1 AX IN1 BX IN2 AX IN2 BX IN3 AX IN3 BX IN4 AX IN4 BX IN1 A IN1 B IN2 A IN2 B IN3 A IN3 B IN4 A IN4 B OUT1 A OUT1 B OUT2 A OUT2 B OUT3 A OUT3 B OUT4 A OUT4 B TESTA(X) TESTB(X) TESTA(Y) TESTB(Y) IN1 AY IN1 BY IN2 AY IN2 BY IN3 AY IN3 BY IN4 AY IN4 BY OUT1 AY OUT1 BY OUT2 AY OUT2 BY OUT3 AY OUT3 BY OUT4 AY OUT4 BY OUT1 AX OUT1 BX OUT2 AX OUT2 BX OUT3 AX OUT3 BX AX OUT4 A BX OUT4 B
IN1 A IN1 B IN2 A IN2 B IN3 A IN3 B IN4 A IN4 B
OUT1 A OUT1 B OUT2 A OUT2 B OUT3 A OUT3 B OUT4 A OUT4 B
TESTA TESTB
HI-8444
HI-8445
HI-8448
PIN DESCRIPTIONS (HI-8444, HI-8445)
PIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SYMBOL
IN1 A IN1 B IN2 A IN2 B TESTA TESTB IN3 A IN3 B IN4 A IN4 B OUT4 B OUT4 A OUT3 B OUT3 A VSS VDD OUT2 B OUT2 A OUT1 B OUT1 A
FUNCTION
ARINC input ARINC input ARINC input ARINC input Logic input Logic input ARINC input ARINC input ARINC input ARINC input Logic output Logic output Logic output Logic output Power Power Logic output Logic output Logic output Logic output Receiver 1 positive input Receiver 1 negative input Receiver 2 positive input Receiver 2 negative input
DESCRIPTION
Test input. (Not available on HI-8445) Test input. (Not available on HI-8445) Receiver 3 positive input Receiver 3 negative input Receiver 4 positive input Receiver 4 negative input Receiver 4 "ZERO" output Receiver 4 "ONE" output Receiver 3 "ZERO" output Receiver 3 "ONE" output Ground Positive supply voltage 3.3V or 5.0 V Receiver 2 "ZERO" output Receiver 2 "ONE" output Receiver 1 "ZERO" output Receiver 1 "ONE" output
HOLT INTEGRATED CIRCUITS 2
HI-8444, HI-8445, HI-8448
PIN DESCRIPTIONS (HI-8448)
PIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
SYMBOL
IN2 BX IN2 AY IN2 BY N/C TESTA(X) TESTB(X) TESTA(Y) TESTB(Y) IN3 AX IN3 BX IN3 AY IN3 BY IN4 AX IN4 BX IN4 AY IN4 BY N/C OUT4 BY OUT4 AY OUT4 BX OUT4 AX OUT3 BY OUT3 AY OUT3 BX OUT3 AX N/C VSS N/C VDD N/C OUT2 BY OUT2 AY OUT2 BX OUT2 AX OUT1 BY OUT1 AY OUT1 BX OUT1 AX N/C IN1 AX IN1 BX IN1 AY IN1 BY IN2 AX
FUNCTION
ARINC input ARINC input ARINC input Logic input Logic input Logic input Logic input ARINC input ARINC input ARINC input ARINC input ARINC input ARINC input ARINC input ARINC input Logic output Logic output Logic output Logic output Logic output Logic output Logic output Logic output Power Power Logic output Logic output Logic output Logic output Logic output Logic output Logic output Logic output ARINC input ARINC input ARINC input ARINC input ARINC input
RECEIVER SET
X Y Y X X Y Y X X Y Y X X Y Y Y Y X X Y Y X X
DESCRIPTION
Receiver 2 negative input Receiver 2 positive input Receiver 2 negative input Not connected Test input Test input Test input Test input Receiver 3 positive input Receiver 3 negative input Receiver 3 positive input Receiver 3 negative input Receiver 4 positive input Receiver 4 negative input Receiver 4 positive input Receiver 4 negative input Not connected Receiver 4 "ZERO" output Receiver 4 "ONE" output Receiver 4 "ZERO" output Receiver 4 "ONE" output Receiver 3 "ZERO" output Receiver 3 "ONE" output Receiver 3 "ZERO" output Receiver 3 "ONE" output Not connected Ground supply Not connected Positive supply voltage 3.3V or 5.0 V Not connected
Y Y X X Y Y X X X X Y Y X
Receiver 2 "ZERO" output Receiver 2 "ONE" output Receiver 2 "ZERO" output Receiver 2 "ONE" output Receiver 1 "ZERO" output Receiver 1 "ONE" output Receiver 1 "ZERO" output Receiver 1 "ONE" output Not connected Receiver 1 positive input Receiver 1 negative input Receiver 1 positive input Receiver 1 negative input Receiver 2 positive input
HOLT INTEGRATED CIRCUITS 3
HI-8444, HI-8445, HI-8448 ABSOLUTE MAXIMUM RATINGS
Supply voltage (VDD) Logic input voltage range ARINC input voltage Driver peak output current Power dissipation at 25C Solder Temperature Storage Temperature -0.3 V to +7 V -0.3 V to +5.5 V -30 V to + 30 V +1.0 A 350 mW 275C for 10 sec -65C to +150C
RECOMMENDED OPERATING CONDITIONS
Supply Voltage VDD .................................. 3.0 V to 5.5 V Operating Temperature Range Industrial Screening ......... Hi-Temp Screening ........ -40C to +85C -55C to +125C
NOTE: Stresses above absolute maximum ratings or outside recommended operating conditions may cause permanent damage to the device. These are stress ratings only. Operation at the limits is not recommended.
ELECTRICAL CHARACTERISTICS
VDD = 5.0V 5% or 3.3V 5%, VSS = 0V, TA = Operating Temperature Range (unless or otherwise specified).
PARAMETER
ARINC INPUTS Input voltage ONE or ZERO NULL Common mode Input resistance Input hysteresis Input capacitance TEST INPUTS Logic input voltage Logic input current OUTPUTS Logic output voltage High Low Logic output voltage (CMOS) SUPPLY CURRENT VDD current SWITCHING CHARACTERISTICS (TA = 25 C) Propagation delay Output rise time Output fall time Propagation delay TEST to OUT IN to OUT High Low High Low Sink Source ARINC differential ARINC single ended to VSS INA to INB Input to VSS or VDD
SYMBOL
VDIN VNIN VCOM RDIFF RSUP VHYS CAD CAS VIH VIL IIH IIL VOH VOL VOHC VOLC IDD
CONDITION
Differential input voltage Differential input voltage With respect to GND Supplies floating Supplies floating
MIN
6.5
TYP
10
MAX
13 2.5 5.0
UNITS
V V V KW KW V
30 19 0.5
75 40 1.0 5 10 10
pF pF V
2.0 0.8 VIH=2.0V VIL=0.8V IOH=-5mA, VDD=5.0V IOH=-4mA, VDD=3.3V IOL=5mA, VDD=5.0V IOL=4mA, VDD=3.3V IOH=-100A IOL=100A HI-8444, HI-8445 HI-8448 5.5 11 600 600 50 50 50 50 80 80 VDD-0.2 VSS+0.2 10 20.0 -1.0 2.4 2.4 0.4 0.4 200
V A A V V V V V V mA mA ns ns ns ns ns ns
tLH tHL tR tF tTOH tTOL
CL=50 pF CL=50 pF 10% to 90% 90% to 10%
HOLT INTEGRATED CIRCUITS 4
HI-8444, HI-8445, HI-8448
TIMING DIAGRAMS
IN A TEST A / TEST B IN B
tLH tHL tLH 1.5V tHL
1.5V tTOH tTOL
OUT A
OUT A / OUT B
1.5V
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 "non -10" configurations with the exception that an external 10 Kohm resistor must be added in series with each ARINC input in order to properly detect the ARINC 429 specified input thresholds. This option is especially useful in applications where external lightning protection circuitry is required. The HI-8444-10, HI-8445-10 and HI-8448-10 will meet the requirements of DO-160D, Level 3, waveforms 3, 4 and 5A with the 10 Kohm series resistors in place. Please refer to the Holt AN-300 Application Note for additional information and recommendations on lightening protection of Holt Line Drivers and Receivers.
ORDERING INFORMATION HI - 844xxx x x - xx
PART NUMBER INPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY
No dash number -10
PART NUMBER
35 Kohm 25 Kohm
LEAD FINISH
0 10 Kohm
Blank F
PART NUMBER
Tin / Lead (Sn / Pb) Solder 100% Matte Tin (Pb-free, RoHS compliant)
TEMPERATURE RANGE FLOW BURN IN
I T
PART NUMBER
-40C TO +85C -55C TO +125C
PACKAGE DESCRIPTION
I T
NO NO
TEST PINS
8444PS 8445PS 8448PQ
20 PIN PLASTIC TSSOP 20 PIN PLASTIC TSSOP 44 PIN PLASTIC QUAD FLAT PACK (PQFP)
YES NO YES
HOLT INTEGRATED CIRCUITS 5
HI-8444, HI-8445, HI-8448 PACKAGE DIMENSIONS
Inches (millimeters)
20-PIN PLASTIC TSSOP
Package Type: 20HS
.256 .004 (6.50 .10)
.0057 .0022 (.145 .055)
.252 BSC (6.4) .039 (1.0) .039 (1.0)
.039 DIA (1.0)
.173 .039 (4.40 .10)
.0096 .0022 (.245 .055)
SEE DETAIL A
.035 .002 (.90 .05)
.026 TYP (.65)
0 to 8 .020 - .030 (.50 - .75) DETAIL A
.004 .002 (.10 .05)
44-PIN PLASTIC QUAD FLAT PACK (PQFP)
Package Type:
.007 MAX. (.17)
44PQS
.547 .010 (13.90 .25) SQ.
.394 .004 (10.0 .10) SQ.
.0315 BSC (.80 BSC) .014 ..002 (.35 .05) .035 +.006 / -.004 (.88 +.15 / -.10)
See Detail A
.097 MAX. (2.45) .079 +.004 / -.006 (2.00 +.10 / -.15) .008 R TYP. (.20 R)
.012 TYP. (.30 R)
0 Q 7
Detail A
HOLT INTEGRATED CIRCUITS 6

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