PT16527 1/3, 1/4 Duty General Purpose LCD Driver IC DESCRIPTION PT16527 is a General Purpose LCD Driver IC utilizing CMOS Technology specially designed for electronic tuners controlled by microcontroller. It can drive up to a maximum of 204 segment outputs and can control up to 12 general purpose output ports. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages. APPLICATION Electronic Dictionary / Translator P.O.S. Caller ID Pager Mini Compo Electronic Equipment with LCD Display FEATURES Up to 204 Segments Outputs 1/3 duty and 1/4 duty drive schemes can be controlled from serial data. 1/2 bias and 1/3 bias drive schemes can be controlled from serial data. 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 CMOS/TTL compatible logic input pins LCD Drive Bias Voltage can be provided internally or externally Available in 64 pins LQFP BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, No. 233-1, Baociao Rd., Sindian Dist., New Taipei City 23145, Taiwan PT16527 APPLICATION CIRCUIT Notes: 1. 39KΩ R1 10KΩ 2. C 0.047µF 3. 10KΩ R 1KΩ V1.0 2 February 2014 PT16527 ORDER INFORMATION Valid Part Number PT16527-LQ Package Type 64-Pin, LQFP Top Code PT16527-LQ PIN CONFIGURATION V1.0 3 February 2014 PT16527 PIN DESCRIPTION Pin Name SG1/P1 ~ SG12/P12 SG13 ~ SG51 COM1 ~ COM3 COM4/SG52 VDD I/O O O O O - VDD1 - VDD2 - VSS OSC I/O /INH I CE CLK DI I I I V1.0 Description Segment Driver Output/General Purpose Output Ports Segment Driver Output Pins Common Driver Output Pins The COM4/SG52 pin can be used as a segment output in 1/3 duty. Power Supply Power Supply This pin is used to apply a 2/3 LCD Drive Bias Voltage. If the ½ Bias Drive Technique is used, this pin must be short to VDD2. Power Supply This pin is used to apply a 1/3 LCD Drive Bias Voltage. If the ½ Bias Drive Technique is used, this pin must be short to VDD1. Ground Oscillation Input / Output Pin Display OFF Control Pin If this pin is set to “LOW” (VSS), the display is forced to turn OFF. Output driver pins -- SG1/P1 to SG12/P12, SG13 to SG51, COM1 to COM4/SG52 are set to “LOW”. If this pin is set to “HIGH” (VDD), the display is turned ON. (see Note) Chip Enable Pin Clock Input Pin Data Input Pin 4 Pin No. 1 ~ 12 13 ~ 51 52 ~54 55 56 58 59 60 61 57 62 63 64 February 2014 PT16527 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 23 February 2014