lightkey spec no: ds10121821 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 1/3 http://www .displa y -leds.com tel: 0086- 574 - 8632 228 2 da te: jul/20/201 1 dat a shee t of 1.90 inch 8x8 dot matri x led displa y lm19088 a/b series ? 1.90 inch 8x8 dot matrix led displa y at t e n t i o n ob ser ve pr ec a u t i o n s fo r h a ndl i n g e l e c tro s t a ti c di s c h a rg e sen s i t i v e d evi c e s f e a t u r e s ? 47.80 mm (1. 90 inch) matri x height ? d o t s i z e : d i a m e t e r 4 . 8 0 m m ? pitch: 6.00 mm ? w i d e v i e w i n g a n g l e ? r a n g e o f e m i t t e d c o l o r s ? i . c . c o m p a t i b l e ? l o w p o w e r c o n s u m p t i o n ? w h i t e d o t , g r e y o r b l a c k f a c e available options ? alternativ e emi tting lumi nosit y: standar d or hi gh bri ghtn e ss versio n ? alternativ e emi tted color ? alternativ e dot color ? alternativ e face color ? both ca or cc versions ar e a v aila bl e ? crop ped termi nal p i ns ? rohs com p li a n t package di mensions 36.00 3 0.51 2.54*12= 3 0 .48 47 .80 6.00* 7 = 42.00 pi n 1 4 7 . 8 0 4 . 8 0 6 . 0 0 * 7 = 4 2 . 0 0 9 . 0 0 co l. 12 8 7 6 5 4 3 2 1 4 57 68 row notes: 1. all dim ens ion s are in millimet ers (inches), t o lerance is + 0.25mm (0.01inch) u n less other w i se noted. 2. specific ation s are subj ect to change w i thout notice. 3. t he ga p between the reflector and pcb s hall not ex ceed 0.2 5 mm.
lightkey spec no: ds10121821 rev : a.4 checke d: emil y zh ou appr oved: m.h. lin p a ge: 2/3 http://www .displa y -leds.com tel: 0086- 574 - 8632 228 2 da te: jul/20/201 1 dat a shee t of 1.90 inch 8x8 dot matri x led displa y internal circuit diagram lm190 88 a (common ca thode ro w ) lm1908 8b (common ano d e ro w ) 3, 6,9 , 12, 13 ,1 6,1 9 , 2 2 no pi n 8 10 4 5 6 7 3 14 7 17 4 20 8 7 6 4 5 3 2 row no . 1 23 pi n no. 1 col. pi n 1 24 2 2 3 21 4 5 5 18 6 8 7 15 8 11 2 row 1 3 , 6 , 9, 12 ,1 3, 16, 19 ,2 2 n o p i n 10 14 7 4 17 20 7 15 3 21 1 24 no. 1 pi n 23 no. col. pi n 2 2 5 18 4 5 6 8 8 11 selection guide part no. chip i v @if= 20ma one do t common cathode ro w common anod e ro w m a t e r i a l c o l o r wl d m i n . t y p. lm1908 8ar lm1908 8br gaalas super red 640 8 10 lm1908 8ad lm1908 8bd gaalas h i - r e d 6 4 0 1 8 2 5 lm1908 8ao lm1908 8bo gaasp oran ge 625 7 9 lm1908 8ay lm1908 8by gaasp yellow 588 8 10 lm1908 8ag lm1908 8bg g a p gree n 568 7 9 lm1908 8aur lm1908 8bur algainp ultra red 640 30 45 lm1908 8auo lm1908 8buo algainp ultra o r an ge 625 45 60 lm1908 8aua lm1908 8bua algainp ultra ambe r 605 30 45 lm1908 8auy lm1908 8buy algainp ultra yello w 595 30 45 lm1908 8aug lm1908 8bug algainp ultra g r ee n 573 30 45 lm1908 8apg lm1908 8bpg ingan pure g r een 525 120 300 lm1908 8aub lm1908 8bub ingan ultra blue 470 30 45 lm1908 8auw lm1908 8buw s m d ultra white \ 100 120 u n i t : \ \ \ n m mc d mc d
lightkey spec no: ds10121821 rev: a.4 checked: emil y zhou approved: m.h. lin page: 3/3 http://www.display-leds.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 1.90 inch 8x8 dot matrix led display electrical characteristics & absolute maximum ratings electrical characteristics [1] absolute maximum ratings [1] v f @ i f =20ma [2] color typ. max. reverse current vr=5v power dissipation dc forward current peak forward current [3] super red per dot 1.8 2.2 30 60 25 100 hi-red per dot 1.8 2.2 30 60 25 100 orange per dot 2.1 2.5 30 80 30 100 yellow per dot 2.1 2.5 30 80 30 100 green per dot 2.2 2.5 30 80 30 100 ultra red per dot 1.9 2.6 30 60 30 100 ultra orange per dot 2.0 2.6 30 65 30 100 ultra amber per dot 2.0 2.6 30 65 30 100 ultra yellow per dot 2.0 2.6 30 65 30 100 ultra green per dot 2.1 2.6 30 75 30 100 pure green per dot 3.5 4.0 30 110 30 100 ultra blue per dot 3.5 4.0 30 120 30 100 ultra white per dot 3.5 4.0 30 120 30 100 unit: \ v v ua mw ma ma notes: 1. at ta = 25 c. 2. forward voltage at forward current = 20ma. 3. peak forward current at 1/10 duty cycle, 0.1ms pulse.
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