LM-1256 Series LED displays 16×16 matrix displays LM-1256 Series The LM-1256 series are 16 × 16 matrix displays which can be used in a wide variety of applications, including alphabet, numeric, symbol, and red are available. zDimensions ( Unit : mm ) 0 32 -0.1 P2×15=30 A B C D E F G H I J K L M N O P zFeatures 1) 16×16 dot matrix Circlar emitters. 2) External dimensions : 32×32×5.4mm 3) Emitters : Circular, 1.6mm diameter. 4) Black package. 3.7 0 32 -0.1 P2×15=30 zApplications Light sources for displays 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1.7 6±0.5 256-φ1.6 Single color type φ0.5 8 Part No. PIN 1 PIN 8 Red∗ 8 PIN 32 PIN 16 8 zSelection guide Common 4-φ1PIN PIN 9 R2 P2×7=14 rank Emitting color 8 LM-1256LB1 PIN 24 PIN 17 505K PIN 25 P2×7=14 24 Anode 24 1Pin Mark Lot No. LM-1256LB1 Tolerances ±0.3 unless otherwise noted ∗ Bright red zPin assignments (Top view) Pin No.25 Pin No.24 AB C D E F G H I J K L MN O P Pin No.32 Pin No.1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin No.17 Pin No.16 Pin No.8 Pin No.9 Single color type Rev.C 1/3 LM-1256 Series LED displays zInternal circuit schematic 1 2 3 4 15 16 P O B A Single color type(LB1) zPin assignment table Single-color type(LB1) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Connection A Cathode B Cathode C Cathode D Cathode E Cathode F Cathode G Cathode H Cathode 16 Anode 15 Anode 14 Anode 13 Anode 12 Anode 11 Anode 10 Anode 9 Anode Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Connection P Cathode O Cathode N Cathode M Cathode L Cathode K Cathode J Cathode I Cathode 1 Anode 2 Anode 3 Anode 4 Anode 5 Anode 6 Anode 7 Anode 8 Anode zAbsolute maximum ratings (Ta=25°C) Single-color type Parameter Symbol LB1 Unit Red∗2 Power dissipation PD 50 mW/dot Forward current IF 20 mA/dot Peak forward current IFP 60∗1 mA/dot Reverse voltage VR 4 V Operating temperature Topr −20 to +50 °C Storage temperature Tstg −30 to +75 °C ∗1 Pulse width 1msec duty 1 / 16 ∗2 Bright red Rev.C 2/3 LM-1256 Series LED displays zElectrical and optical characteristics (Ta=25°C) Single-color type LB1 Parameter Symbol Conditions Red∗1 Unit Min. Typ. Max. Forward voltage VF IF=20mA − 1.75 2.5 V Reverse current IR VR=3V − − 100 µA peak wavelength λP IF=20mA − 660 − nm Spectral halfpower bandwidth ∆λ IF=20mA − 25 − nm Not designed for radiation resistance. ∗1 IF = 20mA zLuminous intensity Color Red∗1 Type Min. Typ. Max. Unit LB1 22 56 − mcd Note : ∗1Measured at IF = 20mA Rev.C 3/3 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1