LightKey Datasheet of 1.20 inch 8x8 Dual Color Square Dot Matrix LED Display LM1288A/BRG Series – 1.20 inch 5x7 Dual Color Square Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 31.70mm (1.20 inch) matrix height ¾ ¾ Dot size: 3x3mm ¾ Pitch: 4mm ¾ Wide viewing angle ¾ Emitted colors: red and green 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 3.0*3.0 COL. 1 2 3 4 5 6 7 8 ROW 1 3 31.70 4.00*7=28.00 2 4 5 6 7 8 PIN 1 4.00*7=28.00 0.50 8.00 31.70 2.54*7=17.78 5.30 0.51 24.00 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: DS10121812 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 8x8 Dual Color Square Dot Matrix LED Display Internal Circuit Diagram LM12288A (Common Cathode Row) LM12288B (Common Anode Row) COL. 1 2 4 5 6 7 8 3 PIN NO. 24 23 21 20 18 17 15 14 1 2 4 5 7 8 10 11 PIN ROW NO. 1 22 COL. 1 2 4 3 6 7 8 5 PIN NO. 24 23 21 20 18 17 15 14 1 2 4 5 7 8 10 11 ROW PIN NO. 1 22 2 19 2 19 3 16 3 16 4 13 4 13 5 3 5 3 6 6 6 6 7 9 7 9 8 12 8 12 = ORANGE = GREEN = ORANGE = GREEN Selection Guide 1.20 inch 8x8 Red-Green LED dot matrix module, Matrix Height: 31.70mm(1.20 inch), External Dimensions: 31.70x31.70x8.00mm (LxWxH) Part No. Description Chip Common Common Cathode Row Anode Row Standard Brightness Ultra-High Brightness LM12288ARG LM12288AURUG SPEC NO: DS10121812 LM12288BRG LM12288BURUG REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM Material Color Iv(mcd)@20mA One Dot W LD (nm) Min. Typ. Super Red 640 8 10 GaP Green 568 7 9 AlGaInP Ultra Red 640 30 45 AlGaInP Ultra Green 573 30 45 GaAlAs CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 1.20 inch 8x8 Dual Color Square Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings Electrical optical Absolute Maximum Ratings[3] [1] Characteristics Color VF(V) @ IF=20mA[2] Reverse Current Power DC Forward VR=5V Dissipation Current (uA) (mW) (mA) Peak Forward Current[2] (mA) Reverse Voltage (V) Typ. Max. Super Red 1.8 2.2 30 60 25 100 5 Green 2.2 2.5 30 80 30 100 5 Ultra Red 1.9 2.6 30 60 30 100 5 Ultra Green 2.1 2.6 30 75 30 100 5 Operating/ Storage Temp.: -40 to +80 deg.; Lead Solder Temp.: 260 deg. for 3-5 Sec. 2mm below package base 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: DS10121812 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