LightKey Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display LM7057A/B Series - 0.70 inch 5x7 Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 31.60mm (1.20 inch) matrix height ¾ ¾ Dot size: 4x4 mm ¾ Pitch: 4.60 mm ¾ Wide viewing angle ¾ Range of emitted colors ¾ I.C. compatible ¾ Low power consumption ¾ White dot, grey or black face ¾ RoHS compliant Alternative emitting luminosity: Standard or high brightness version ¾ ¾ ¾ ¾ ¾ Alternative emitted color Alternative dot color Alternative face color Both CA or CC versions are available Cropped terminal pins Package Dimensions 2 3 4 5 4.0*4.0 COL. 1 ROW 1 3 42.00 4.60*6=27.60 2 4 5 6 7 PIN 1 4.60*4=18.40 0.51 8.00 6.30 0.50 25.00 36.00 2.54*6=15.24 Notes: 1. All dimensions are in millimeters (inches), Tolerance is + 0.25mm (0.01inch) unless other wise noted. 2. Specifications are subject to change without notice. 3. The gap between the reflector and PCB shall not exceed 0.25mm. SPEC NO: DS10121816 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 1/3 DATE: Jul/20/2011 LightKey Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display Internal Circuit Diagram LM7057A (Common Cathode Row) COL. 1 ROW PIN NO. PIN NO. 13 LM7057B (Common Anode Row) 2 3 4 5 COL. 3 4 11 10 6 PIN NO. ROW 1 2 3 4 5 13 3 4 11 10 6 PIN NO. 1 9 1 9 2 14 2 14 3 8 3 8 4 5 12 4 5 12 5 1 5 1 6 7 6 7 7 2 7 2 Selection Guide Part No. Chip Common Common Cathode Row Anode Row Material Iv@IF=20mA Color One Dot WLD Min. Typ. LM12457AR LM12457BR GaAlAs Super Red 640 8 10 LM12457AD LM12457BD GaAlAs Hi-Red 640 18 25 LM12457AO LM12457BO GaAsP Orange 625 7 9 LM12457AY LM12457BY GaAsP Yellow 588 8 10 LM12457AG LM12457BG GaP Green 568 7 9 LM12457AUR LM12457BUR AlGaInP Ultra Red 640 30 45 LM12457AUO LM12457BUO AlGaInP Ultra Orange 625 45 60 LM12457AUA LM12457BUA AlGaInP Ultra Amber 605 30 45 LM12457AUY LM12457BUY AlGaInP Ultra Yellow 595 30 45 LM12457AUG LM12457BUG AlGaInP Ultra Green 573 30 45 LM12457APG LM12457BPG InGaN Pure Green 525 120 300 LM12457AUB LM12457BUB InGaN Ultra Blue 470 30 45 LM12457AUW LM12457BUW SMD Ultra White \ 100 120 Unit: \ \ \ nm mcd mcd SPEC NO: DS10121816 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings Electrical Absolute Maximum Ratings[1] [1] Characteristics Color VF@ Reverse IF=20mA[2] Current Typ. Max. VR=5V Power Dissipation DC Peak Forward Forward Current 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. SPEC NO: DS10121816 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 3/3 DATE: Jul/20/2011