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| Princeton Technology Corp. 1/3 Duty General Purpose LCD Driver IC DESCRIPTION Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 PT6523 is an LCD Driver IC which can drive up to 156 segments. It can be used for frequency display in microprocessor-controlled radio receiver and in other display applications. PT6523 supports both 1/2 bias, 1/3 duty and 1/3 duty, 1/3 bias. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages. FEATURES * * * * * * * * Up to 156 Segments Outputs 1/3 Duty - 1/2 Bias and 1/3 Duty - 1/3 Bias Drive Techniques Power Saving Mode and all Segments OFF Function Direct Display of Display Data without using a Decoder RC Oscillation Circuit Power Supply Voltage: 4.5 to 6V LCD Drive Bias Voltage can be provided internally or externally Available in 64 pins, QFP or LQFP Package APPLICATIONS * * * * * * Electronic Dictionary / Translator P.O.S. Caller ID Pager Mini Compo Electronic Equipment with LCD Display PT6523 v1.1 Page 1 Updated July 2001 Princeton Technology Corp. 1/3 Duty General Purpose LCD Driver IC PIN CONFIGURATION Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 SG47 SG46 SG45 SG42 SG48 SG44 SG43 SG41 SG40 SG39 SG38 SG37 SG36 SG35 SG34 34 38 47 40 48 45 44 42 37 SG49 SG50 SG51 SG52 COM1 COM2 COM3 VDD INH VDD1 VDD2 VSS OSC CE CLK DI 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 35 46 43 41 39 36 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 SG33 SG32 SG31 SG30 SG29 SG28 SG27 SG26 SG25 SG24 SG23 SG22 SG21 SG20 SG19 SG18 SG17 SG1 SG2 SG5 SG3 SG4 SG6 SG7 SG8 SG9 SG10 SG11 SG12 SG13 SG14 SG15 PT6523 v1.1 Page 2 SG16 Updated July 2001 Princeton Technology Corp. 1/3 Duty General Purpose LCD Driver IC APPLICATION CIRCUIT 1 1/3 Bias (For Small Display Panel) 47k Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 1000pF OSC VDD R1 INH 20pF 0.1uF VSS VDD1 OPEN VDD2 SG1 : : : : : SG52 (UP TO 156 SEGMENTS) VDD COM1 COM2 COM3 LCD PANEL CE FROM THE MICROCONTROLLER CLK DI Note: 1. 39k>R1>10k 1/3 Bias (for Normal Size Display Panels) 47k 1000pF OSC VDD R1 INH 20pF 0.1uF VSS VDD1 C C VDD2 SG1 : : : : : SG52 (UP TO 156 SEGMENTS) VDD COM1 COM2 COM3 LCD PANEL CE FROM THE MICROCONTROLLER CLK DI Notes: 1. 39k>R1>10k 2. C>0.047uF PT6523 v1.1 Page 3 Updated July 2001 Princeton Technology Corp. 1/3 Duty General Purpose LCD Driver IC Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 APPLICATION CIRCUIT 3 1/3 Bias (For Large Panels) 47k 1000pF OSC VDD R 20pF R C C R CE FROM THE MICROCONTROLLER CLK DI VDD2 R1 INH 0.1uF VSS VDD1 SG1 : : : : : SG52 (UP TO 156 SEGMENTS) VDD COM1 COM2 COM3 LCD PANEL Notes: 1. 39k>R1>10k 2. C>0.047uF 3. 10k>R>1k PT6523 v1.1 Page 4 Updated July 2001 |
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