holt integrated circuits www.holtic.com arinc inputs testa testb outa outb ina - inb -2.5 to +2.5 v 0 0 0 0 < -6.5 v 0 0 0 1 > +6.5 v 0 0 1 0 x0101 x1010 x1100 function table 44-pin plastic quad flat pack (pqfp) 44 - in2 ax 43 - in1 by 42 - in1 ay 41 - in1 bx 40 - in1 ax 39 - n/c 38 - out1 ax 37 - out1 bx 36 - out1 ay 35 - out1 by 34 - out2 ax 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 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 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 hi-8444ps hi-8444ps-10 & HI-8445ps HI-8445ps-10 quad receiver hi-8444, HI-8445, hi-8448 quad / octal arinc 429 line receivers description features 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. the HI-8445 is identical to the hi-8444 except the testa and testb pins are not available. 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 do- 160c/d level 3 (-10 configuration only) military processing options available in1 a in1 b in2 a in2 b testa (8444 only) testb (8444 only) in3 a in3 b in4 a in4 b out1 a out1 b out2 a out2 b vdd vss out3 a out3 b out4 a out4 b 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 20 pin plastic tssop package january 2003 (ds8444 rev. c) 01/03 .com .com .com 4 .com u datasheet
pin descriptions (hi-8444, HI-8445) holt integrated circuits 2 block diagrams in1 a in1 b in2 a in2 b in3 a in3 b in4 a in4 b testa testb out1 a out1 b out2 a out3 a out3 b out4 a out4 b out2 b in1 a in1 b in2 a in2 b in3 a in3 b in4 a in4 b out1 a out1 b out2 a out3 a out3 b out4 a out4 b out2 b hi-8444 HI-8445 in4 ax out1 ax out4 a out4 b in1 ax in1 bx in2 ax in2 bx in3 ax in3 bx in4 bx testa(x) testb(x) out1 bx out2 ax out3 ax out3 bx out4 ax out4 bx out2 bx testa(y) testb(y) in4 ay in1 ay in1 by in2 ay in2 by in3 ay in3 by in4 by out1 ay out1 by out2 ay out3 ay out3 by out4 ay out4 by out2 by hi-8448 hi-8444, HI-8445, hi-8448 pin symbol function description 1 in1 a arinc input receiver 1 positive input 2 in1 b arinc input 3 in2 a 4 in2 b 5 testa logic input test input. (not available on HI-8445) 6 testb 7 in3 a 9 in4 a 10 in4 b 11 out4 b 12 out4 a 13 out3 b 14 out3 a 15 vss power ground 16 vdd power positive supply voltage 3.3v or 5.0 v receiver 1 negative input arinc input receiver 2 positive input arinc input receiver 2 negative input logic input test input. (not available on HI-8445) arinc input receiver 3 positive input 8 in3 b arinc input receiver 3 negative input arinc input receiver 4 positive input arinc input receiver 4 negative input logic output receiver 4 "zero" output logic output receiver 4 "one" output logic output receiver 3 "zero" output logic output receiver 3 "one" output 17 out2 b logic output receiver 2 "zero" output 18 out2 a logic output receiver 2 "one" output 19 out1 b logic output receiver 1 "zero" output 20 out1 a logic output receiver 1 "one" output .com .com .com .com 4 .com u datasheet
hi-8444, HI-8445, hi-8448 pin descriptions (hi-8448) pin symbol function receiver set description 1 in2 bx arinc input x 2 in2 ay arinc input y 3 in2 by 4 n/c not connected 5 testa(x) logic input x test input 6 testb(x) 7 testa(y) 9 in3 ax 10 in3 bx 11 in3 ay 12 in3 by 13 in4 ax 14 in4 bx 15 in4 ay y 16 in4 by y receiver 2 negative input receiver 2 positive input arinc input y receiver 2 negative input logic input x test input logic input y test input 8 testb(y) logic input y test input arinc input x receiver 3 positive input arinc input x receiver 3 negative input arinc input y receiver 3 positive input arinc input y receiver 3 negative input arinc input x receiver 4 positive input arinc input x receiver 4 negative input arinc input receiver 4 positive input arinc input receiver 4 negative input 17 n/c not connected 18 out4 by logic output y receiver 4 "zero" output 19 out4 ay logic output y receiver 4 "one" output 20 out4 bx logic output x receiver 4 "zero" output 21 out4 ax logic output x receiver 4 "one" output 22 out3 by logic output y receiver 3 "zero" output 23 out3 ay logic output y receiver 3 "one" output 24 out3 bx logic output x receiver 3 "zero" output 25 out3 ax logic output x receiver 3 "one" output 26 n/c not connected 27 vss power ground supply 28 n/c not connected 29 vdd power positive supply voltage 3.3v or 5.0 v 30 n/c not connected 31 out2 by logic output y receiver 2 "zero" output 32 out2 ay logic output y receiver 2 "one" output 33 out2 bx logic output x receiver 2 "zero" output 34 out2 ax logic output x receiver 2 "one" output 35 out1 by logic output y receiver 1 "zero" output 36 out1 ay logic output y receiver 1 "one" output 37 out1 bx logic output x receiver 1 "zero" output 38 out1 ax logic output x receiver 1 "one" output 39 n/c not connected 40 in1 ax arinc input x receiver 1 positive input 41 in1 bx arinc input x receiver 1 negative input 42 in1 ay arinc input y receiver 1 positive input 43 in1 by arinc input y receiver 1 negative input 44 in2 ax arinc input x receiver 2 positive input holt integrated circuits 3 .com .com .com .com 4 .com u datasheet
hi-8444, HI-8445, hi-8448 holt integrated circuits 4 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. supply voltage ( logic input voltage range power dissipation at 25c 350 mw solder temperature 275c for 10 sec storage temperature -65c to +150c vdd) -0.3 v to +7 v -0.3 v to +5.5 v arinc input voltage -30 v to + 30 v driver peak output current +1.0 a absolute maximum ratings recommended operating conditions supply voltage operating temperature range industrial screening ......... -40c to +85c hi-temp screening ........ -55c to +125c vdd .................................. 3.0 v to 5.5 v parameter symbol condition min typ max units arinc inputs input voltage one or zero v differential input voltage 6.5 10 13 v null v differential input voltage 2.5 v common mode v with respect to gnd 5.0 v input resistance ina to inb r supplies floating 30 75 k input to v or v r supplies floating 19 40 k input hysteresis v 0.5 1.0 v input capacitance arinc differential c 5 10 pf arinc single ended to v c 10 pf test inputs logic input voltage high v 2.0 v low v 0.8 v logic input current sink i v =2.0v 200 source i v =0.8v -1.0 outputs logic output voltage high v i =-5ma, v =5.0v 2.4 v i =-4ma, v =3.3v 2.4 v low v i =5ma, v =5.0v 0.4 v i =4ma, v =3.3v 0.4 v logic output voltage (cmos) high v i =-100 low v i =100 supply current v current i hi-8444, HI-8445 5.5 10 ma hi-8448 11 20.0 ma switching characteristics ( propagation delay in to out t c =50 pf 600 ns t 600 ns output rise time t 10% to 90% 50 80 ns output fall time t 90% to 10% 50 80 ns propagation delay test to out t 50 ns t50ns din nin com diff ss dd sup hys ad ss as ih il ih ih il il oh oh dd oh dd ol ol dd ol dd ohc oh olc ol dd dd lh l hl r f toh tol a a a v -0.2 v a v +0.2 v t = 25 c) c =50 pf dd ss a l electrical characteristics vdd = 5.0v , v = 0v, t = operating temperature range (unless or otherwise specified). ss a or 5% 3.3v 5% .com .com .com .com 4 .com u datasheet
holt integrated circuits 5 hi-8444, HI-8445, hi-8448 hi-8444psi 20 pin plastic tssop -40c to +85c i none no solder hi-8444psi-10 20 pin plastic tssop -40c to +85c i 10k no solder hi-8444pst 20 pin plastic tssop -55c to +125c t none no solder hi-8444pst-10 20 pin plastic tssop -55c to +125c t 10k no solder HI-8445psi 20 pin plastic tssop -40c to +85c i none no solder HI-8445psi-10 20 pin plastic tssop -40c to +85c i 10k no solder HI-8445pst 20 pin plastic tssop -55c to +125c t none no solder HI-8445pst-10 20 pin plastic tssop -55c to +125c t 10k no solder hi-8448pqi 44 pin plastic quad flatpack (pqfp) -40c to +85c i none no solder hi-8448pqi-10 44 pin plastic quad flatpack (pqfp) -40c to +85c i 10k no solder hi-8448pqt 44 pin plastic quad flatpack (pqfp) -55c to +125c t none no solder hi-8448pqt-10 44 pin plastic quad flatpack (pqfp) -55c to +125c t 10k no solder timing diagrams 1.5v 1.5v t lh t hl t lh t hl in a in b out a out b 1.5v t toh t tol 1.5v test a / test b out a / out b arinc 429 receiver timing test mode timing package description temperature range part number lead finish ordering information process flow burn in 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. external resistor .com .com .com .com 4 .com u datasheet
package type: 20-pin plastic tssop 20hs hi-8444, HI-8445, hi-8448 package dimensions inches (millimeters) holt integrated circuits 6 package type: detail a see detail a sq. 44pqs 44-pin plastic quad flat pack (pqfp) .007 (.17) .547 .010 (13.90 .25) .394 .004 (10.0 .10) sq. max. .014 ..002 (.35 .05) .035 +.006 / -.004 (.88 +.15 / -.10) .008 r (.20 r) typ. .012 (.30 r) typ. .079 +.004 / -.006 (2.00 +.10 / -.15) .097 (2.45) max. .0315 bsc (.80 bsc) typ 0 to 8 see detail a detail a bsc dia .252 (6.4) .039 (1.0) .0096 .0022 (.245 .055) .256 .004 (6.50 .10) .173 .039 (4.40 .10) .0057 .0022 (.145 .055) .035 .002 (.90 .05) .004 .002 (.10 .05) .026 (.65) .020 - .030 (.50 - .75) .039 (1.0) .039 (1.0) .com .com .com 4 .com u datasheet
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