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| Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw LED Driver IC PT6964 DESCRIPTION PT6964 is an LED Controller driven on a 1/7 to 1/8 duty factor. 10 segment output lines, 4 grid output lines, 3 segment/ grid output lines, one display memory, control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer. Serial data is fed to PT6964 via a three-line serial interface. Housed in a 28 pins SO Package, PT6964 pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages. FEATURES * * * * * * * CMOS Technology Low Power Consumption Multiple Display Modes (10 segment, 7 Grid to 13 segment, 4 Grid) Key Scanning (10 x 2 Matrix) 8-Step Dimming Circuitry Serial Interface for Clock, Data Input, Data Output, Strobe Pins Available in 28 pins, SOP APPLICATIONS * * * Micro-computer Peripheral Device VCR set Combo set PT6964 V1.0 -1- April, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw LED Driver IC PT6964 PIN DESCRIPTION OSC DI/O CLK STB K1 K2 VDD SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 SG5/KS5 SG6/KS6 SG7/KS7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 GND GR1 GR2 GND GR3 GR4 GND VDD SG14/GR5 SG13/GR6 SG12/GR7 SG10/KS10 SG9/KS9 SG8/KS8 PT6964 22 21 20 19 18 17 16 15 PT6964 V1.0 -2- April, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw LED Driver IC PT6964 APPLICATION CIRCUIT 6-GRID X 12-SEGMENT LED KS2 MCU +5V 10K +5V OSC DI/O CLK STB K1 K2 VDD SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 SG5/KS5 SG6/KS6 SG7/KS7 GND GR1 GR2 GND GR3 GR4 GND VDD SG14/GR5 SG13/GR6 SG12/GR7 SG10/KS10 SG9/KS9 SG8/KS8 +5V 0.1 f SEG12 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 (COMMON CATHODE) KS1 SW4 SW1 SW5 SW2 51K DIGIT1 DIGIT2 DIGIT3 DIGIT4 DIGIT5 DIGIT6 Note: 1. The capacitor (0.1F) connected between the GND and the VDD pins must be located as close as possible to the PT6964 chip. 2. It is strongly suggested that the NC pin (pins 13) be connected to the GND. 3. The PT6964 power supply is separate from the application system power supply. KS10 SW28 SW29 KS9 SW25 SW26 KS8 SW22 SW23 KS7 SW19 SW20 KS6 SW16 SW17 KS5 SW13 SW14 KS4 SW10 SW11 KS3 SW7 SW8 PT6964 V1.0 -3- April, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw LED Driver IC PT6964 COMMON CATHODE TYPE LED PANEL PT6964 V1.0 -4- April, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw LED Driver IC PT6964 ORDER INFORMATION Valid Part Number PT6964-S PT6964-S (L) Package Type 28pins, SOP, 300mil 28pins, SOP, 300mil Top Code PT6964-S PT6964-S Notes: 1. (L) = Lead Free 2. The Lead Free mark is put in front of the date code. PT6964 V1.0 -5- April, 2005 |
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