lightkey spec no: ds10121797 rev: a.4 checked: emil y zhou approved: m.h. lin page: 1/3 http://www.ltkey.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 0.70 inch 8x8 dot matrix led display lm7088a/b series - 0.70 inch 8x8 dot matrix led display features ? 20.20mm (0.70inch) digit high ? dot size: diameter 1.90mm ? pitch: 2.54mm ? wide viewing angle ? range of emitted colors ? i.c. compatible ? low power consumption ? white segment ? rohs compliant package dimensions 1 . 9 0 2.50*7=17.50 20.20 pin 1 col. 2 . 5 0 * 7 = 1 7 . 5 0 2 0 . 2 0 12 3 4 5 8 7 68 3 7 6 5 4 1 2 row 15.00 0.51 2.50*7=17.50 6 . 3 0 0 . 5 0 5 . 9 0 notes: 1. all dimensions are in millimeters (inches), tolerance is + 0.25mm (0.01inch) unless other wise noted. 2. specifications are subj ect to change without notice. 3. the gap between the reflector and pcb shall not exceed 0.25mm. attention observe precautions for handling electrostatic discharge sensitive devices available options ? alternative emitting luminosity: standard or high brightness version ? alternative emitted color ? alternative segment color ? alternative font ? common cathode is available ? cropped terminal pins
lightkey spec no: ds10121797 rev: a.4 checked: emil y zhou approved: m.h. lin page: 2/3 http://www.ltkey.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 0.70 inch 8x8 dot matrix led display internal circuit diagram lm7088a (common cathode row) lm7088b (common anode row) col. 14 no. pin 12 8 5 6 5 7 2 1 7 3 4 8 1 2 row 9 pin no. 13 1 3 4 2 3 10 6 4 5 11 15 67 8 5 col. pin no. 7 6 5 2 1 7 4 3 12 8 row 16 8 1 2 9 14 no. pin 13 3 12 4 10 3 4 6 11 5 6 15 16 78 selection guide part no. chip iv@if=20ma one dot common cathode row common anode row material color wld min. typ. lm7088ar lm7088br gaalas super red 627 8 10 lm7088ad lm7088bd gaalas hi-red 627 18 25 LM7088AO lm7088bo gaasp orange 610 7 9 lm7088ay lm7088by gaasp yellow 588 8 10 lm7088ag lm7088bg gap green 568 7 9 lm7088aur lm7088bur algainp ultra red 627 30 45 lm7088auo lm7088buo algainp ultra orange 610 45 60 lm7088aua lm7088bua algainp ultra amber 605 30 45 lm7088auy lm7088buy algainp ultra yellow 595 30 45 lm7088aug lm7088bug algainp ultra green 573 30 45 lm7088apg lm7088bpg ingan pure green 525 120 300 lm7088aub lm7088bub ingan ultra blue 470 30 45 lm7088auw lm7088buw ingan ultra white \ 100 120 unit: \ \ \ nm mcd mcd
lightkey spec no: ds10121797 rev: a.4 checked: emil y zhou approved: m.h. lin page: 3/3 http://www.ltkey.com tel: 0086-574-86322282 date: jul/20/2011 datasheet of 0.70 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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