PT6523 PTC | Alldatasheet

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Technical content

1/3 Duty General Purpose LCD Driver IC PT6523 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 v1.1 Page 1 Updated July 2001

DESCRIPTION

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

1/3 Duty General Purpose LCD Driver IC PT6523 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 v1.1 Page 2 Updated July 2001 SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG12 SG8 SG13 SG9 SG14 SG10 SG15 SG11 SG16

64 SG17

1/3 Duty General Purpose LCD Driver IC PT6523 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 v1.1 Page 3 Updated July 2001 APPLICATION CIRCUIT 1 1/3 Bias (For Small Display Panel) VDD OSC COM1 COM2 COM3 VSS VDD1 VDD2 SG1 SG52 OPEN CE DI CLK INH LCD PANEL (UP TO

156 SEGMENTS)

47k Ω 1000pF 20pF 0.1uF 1/3 Bias (for Normal Size Display Panels) VDD OSC COM1 COM2 COM3 VSS VDD1 VDD2 SG1 SG52 CE DI CLK INH LCD PANEL (UP TO C C 47k Ω 1000pF 0.1uF20pF Note: 1. 39kΩ >R1>10kΩ Notes: 1. 39kΩ >R1>10kΩ 2. C>0.047uF

1/3 Duty General Purpose LCD Driver IC PT6523 Princeton Technology Corp. Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6523 v1.1 Page 4 Updated July 2001 APPLICATION CIRCUIT 3 1/3 Bias (For Large Panels) VDD OSC COM1 COM2 COM3 VSS VDD1 VDD2 SG1 SG52 CE DI CLK INH LCD PANEL (UP TO C C R R R 47k Ω 1000pF 20pF 0.1uF Notes: 1. 39kΩ >R1>10kΩ 2. C>0.047uF 3. 10kΩ >R>1kΩ