technical& ata 1 2012 , february , v e r . 0 1 i nterface t ransceiver of the s erial d ata of the s tandard rs - 485/rs - 422 description the ILX3085 is interface tra n sceiver of serial data under rs - 485 standard with low power consum p tion . the ILX3085 is purposed for a p plication in telecom sys tems under rs485/rs422 standards with low power dissipation, translators of the level, tran s ceiving d e vices sensitive to electromagnetic radiation, industrial control systems . il x 3 0 85 n plastic il x 3 0 85d soic fig ure 1 features ? 1 transmitter and 1 receivers of the serial data of the standard rs - 485 ? auto shutdown function provide low pow er co n sumption ? supply voltage range: 5 . 0v ? 5% ? operating temperature range: - 40 ~ +85 ? esd protection up to 2 000v for transmitter in put and receiver output (ttl/cmos levels) and up to 15 000v for transmitter output and receiver input (rs - 485 levels) ? latch current, min C 300ma at normal climatic condition ? enhanced esd specifications: 15kv iec 6 1000 - 4 - 2 air discharge 8kv iec 6 1000 - 4 - 2 contact discharge pin description fig ure 2 ilx30 85 ordering information device operating temperature range package packing ilx3 0 85n t a = - 40 ? to 85 ? c dip8 tube ilx3 0 85d sop8 tube ilx3 0 85dt sop8 tube & reel 01 02 03 04 vcc ro re de gnd b a 08 07 06 05 di
ilx3 0 85 2 2012 , february , v e r . 0 1 table 1. pin d escription pin n u m ber symbol pin d es cription 01 ro ttl/cmos receiver data output 02 receiver ouput enable. 03 de transmitter ouput enable. 04 di transmitter input 05 gnd common pin 06 noninverting receiver/transmitter input/output 07 inverting receiver/transmitter input/output 08 v cc power supply v - (08) gnd - (05) fig ure 3 . block d iagram re b ro re de di b a r d
ilx3 0 85 3 2012 , february , v e r . 0 1 table 2 . transmitter t ruth t able inputs outputs de di a x h h l h x h l h l l l x z z h l x zz note : C high level , l C low level , C dont care , z C third state table 3 . receiver t ruth t able inputs outputs de a, ro l x C 0,05 C 0,2 ? note : C high level , l C low level , ? C inputs not used , C dont care , z C third state , zz C inputs and outputs are in the third state re b b
ilx3 0 85 4 2012 , february , v e r . 0 1 table 4 . recommended operating condition symbol parametk, limit unit min max v cc supply vol t age 4 . 75 5 . 25 v v il input low voltage di, de, pins 0 0 . 8 v v ih input high vol t age di , de , pins 2 . 0 v cc v v od trans mitter output vol t age - 7 . 0 12 . 0 v v ir receiver in put voltage - 7 . 0 12 . 0 v v or receiver output voltage 0 v cc v v th receiver differential threshold voltage ? ? 50 ? ? ? 2 0 0 ? v t ambient temperature C 40 85 o c table 5 . maximum ratings symbol parameter limi t unit min max v cc supply vol t age C 7 . 0 v v il input voltage on pins di, de, - 0 . 3 7 . 0 v v od transmitter output vol t age - 13 13 v v ir receiver in put voltage - 13 13 v v or receiver output voltage - 0 . 3 v cc +0 . 3 v * stresses beyond those listed under maximum ratings may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions i s not implied. exposure to absolute - maximum - rated conditions for extended periods may affect device reliability. re
ilx3 0 85 5 2012 , february , v e r . 0 1 table 6 . el ectric al p arameters ( v = 5v ? 5%) sy m bol parameter mode limit t a , ? c {(it min max i cc idle mode s upply c urrent v re = 0 b or v cc v di = 0 b or v cc v de = v cc C 800 25 10 ? a 900 C 40 ; 85 v re = 0 v v di = 0 v or v cc v de = 0 C 500 25 10 600 C 40; 85 i shdn shutdown mode s upply c urrent v de = 0v v re = v cc C 9 . 0 25 10 ? a 1 0 C 40; 85 i ill input low leakage cu r rent on control pin v de = v di = v re = 0 v C C 0 . 2 25 10 ? a C 2 . 0 C 40; 85 i ilh input high leakage cu r rent on control pin v de = v di = v re = v cc C 0 . 2 25 10 ? a 2 . 0 C 40; 85 t shdn shutdown time C 50 6 00 25 10 ns receiver v olr output low voltage v id = C 20 0 mv i ol = 4 . 0 ma C 0 . 36 25 10 v 0 . 4 C 40; 85 v ohr output high voltage v id = C 5 0 mv i oh = C 4 . 0 ma v cc C 1 . 5 C 25 10 ; C 40; 85 v r i input resistance C 7 . 0 v ? v ir ? 12 v 96 C 25 10 ; C 40; 85 k ? i i input current v ir = 12 v v de = 0 v v cc = 0 or 5 . 25 v C 114 25 10 ? a v ir = C 7 . 0 v C 66 v ir = 12 v 125 C 40; 85 v ir = C 7 . 0 v C 75 i ozlr output low current f or off - state v or = 0 . 4 v C C 0 . 5 25 10 ? a C 1 . 0 C 40; 85 i ozhr output high current for off - state v or BÚ 2 . 4 v C 0 . 5 25 10 ? a 1 . 0 C
ilx3 0 85 6 2012 , february , v e r . 0 1 table 6 . electric al p arameters ( continued ) sy m bol parameter mode limit t a , ? c unit min max receiver i oshr output high short circuit current v or = v cc 8 . 0 87 25 10 ma 7 . 0 95 C 40; 85 i oslr output low short circuit cu r rent v or = 0 v C 8 . 0 C 87 25 10 ma C 7 . 0 C 95 C 40; 85 v h r hysteresis C C 50 25 10 mv t phlr , t plhr receive r input to output switc h ing delay ? v id ? ? 2 . 0 v t lh = t hl ? 15 ns C 185 25 10 ns 200 C 40; 85 t skd r differential r eceiver s kew ? v id ? ? 2 . 0 v t lh = t hl ? 15 ns C 28 25 10 ns 30 C 40; 85 t pzhr , t pzlr receiver enable from off to output h igh (low) c l = 1 00 pf C 45 25 10 ns 50 C 40; 85 t lr ( shdn ), t hr ( shdn ) receiver enable from shutdown to output high (low) c l = 100 pf C 3150 25 10 ns 3500 C 40; 85 transmitter v o d 1 differential output voltage (no load) C 5 . 0 C 25 1 0; C 40; 85 v v o d 2 differential output voltage (no load) r l = 50 ? ( rs - 422) 2 . 08 C 25 10 v 2 . 00 C 40; 85 r l = 27 ? ( rs - 485) 1 . 56 C 25 10 1 . 50 C 40; 85 ? v o d change in magnitude of di f ferential output voltage for complementary output s tates r l = 50; 27 ? C 0 . 18 25 10 v 0 . 2 C 40; 85 v o output bias voltage refer to common pin r l = 5 0 ; 27 ? C 2 . 9 25 10 v 3 . 0 C 40; 85 ? v o change in magnitude of bias output voltage for compleme n tary output states r l = 5 0 ; 27 ? C 0 . 18 2 5 10 v 0 . 20 C
ilx3 0 85 7 2012 , february , v e r . 0 1 table 6 . electric al p arameters (continued) sy m bol parameter mode limit t a , ? c unit min max transmitter i osd short circuit current C 7 . 0 v ? v od ? v cc C ? ? 240 ? 25 10 ma ? ? 250 ? C 40; 85 0 v ? v od ? 12 v 240 25 10 250 C 40; 85 0 v ? v od ? v cc ? ? 26 ? 25 10 ? ? 25 ? C 40; 85 v h d hysteresis C C 200 25 ? 10 v t phl d , t plh d transmitter input to output switching d e lay c l 1 = c l 2 = 100 pf r diff = 54 ? 330 800 25 10 ns 250 1000 C 40; 85 t skew d transmitter output s kew c l 1 = c l 2 = 100 pf r diff = 54 ? C 9 0 25 10 ns 10 0 C 40; 85 t pzh d , t pzl d transmitter enable time from off to output high (low) c l = 100 pf C 2200 25 10 ns 2500 C 40; 85 t phz d, t plz d transmitter disable time from outpu t high ( low ) to off c l = 15 pf C 90 25 10 ns 100 C 40; 85 t rd , t fd rise or fall time of differential ou t put signal r diff = 54 ? c l 1 = c l 2 = 100 pf 220 620 25 10 ns 200 750 C 40; 85 t ld ( shdn ), t hd ( shdn ) transmitter enable time from shutdown to output high ( low ) c l = 15 pf C 4000 25 10 ns 4 500 C 40; 85 st data rate C 600 C 25 10 kb/s 500 C
ilx3 0 85 8 2012 , february , v e r . 0 1 fig ure 4 . tr ansmitter output & input signals time diagram 1 , 5 v 3 , 0 v d i 0 v t p h l t p l h a v o 0 , 5 v o 0 , 5 v o v o t r d t f d v o d 2 = v a - v b 1 0 % 1 0 % 9 0 % 9 0 % b v o d 2 0 - v o 1 , 5 v
ilx3 0 85 9 2012 , february , v e r . 0 1 during the input signal a is changing dc voltage 1.5 v is supplied to input b during the input signal b is changing dc voltage 1.5 v is supplied to input a fig ure 5 . receiver output & input signa ls time diagram
ilx3 0 85 10 2012 , february , v e r . 0 1 fig ure 6 . transmitter output & input signals time diagram 1 . 5 v 1 . 5 v 5 . 0 v de 0 v 2 . 3 v 2 . 3 v v oh - 0 . 5 v a , b v ol a , b 0 v v ol + 0 . 5 v v oh t pzl d , t dl ( shdn ) t ld ( shdn ) t plz d t pzh d , t hd ( shdn ) t phz d
ilx3 0 85 11 2012 , february , v e r . 0 1 fig ure 7 . receiver output & input signals time diagram 1 . 5 v 1 , 5 v 5 , 0 v re 0 v 1 , 5 v 1 , 5 v v oh - 0 , 5 v ro v cc 0 v v ol + 0 , 5 v v oh v ol ro t pzl r , t lr ( shdn ) t plz r t pzh r , t hr ( shdn ) t phz r
ilx3 0 85 12 2012 , february , v e r . 0 1 package dimensions n suffix plastic dip (ms C 001ba) symbol min max a 8.51 10.16 b 6.1 7.11 c 5.33 d 0.36 0.56 f 1.14 1.78 g h j 0 10 k 2.92 3.81 notes: l 7.62 8.26 1. ???? dimensions a, b do not include mold flash or protrusions. m 0.2 0.36 maximum mold flash or protrusions 0.25?mm (0.010) per side. n 0.38 d suffix soic (ms - 012aa) symbol min max a 4.8 5 b 3.8 4 c 1.35 1.75 d 0.33 0.51 f 0.4 1.27 g h j 0 8 notes: k 0.1 0.25 1. ???? dimensions a and b do not include mold flash or protrusion. m 0.19 0.25 2. ???? maximum mold flash or protrusion 0.15?mm (0.006) per side p 5.8 6.2 for a; for b ? 0.25?mm (0.010) per side. r 0.25 0.5 1.27 5.72 dimension, mm dimension, mm 2.54 7.62 a b h c k c m j f m p g d r x 45 seating plane 0.25 (0.010) m t -t- 1 8 4 5 l h m j a b f g d seating plane n k 0.25 (0.010) m t -t- c 1 8 4 5
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