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| Princeton Technology Corp. LED Driver IC DESCRIPTION Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6959 PT6959 is an LED Controller driven on a 1/4 to 1/7 duty factor. Fourteen to eleven segment output lines, 4 to 7 grid output lines, one display memory, control 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 PT6959 via a three-line serial interface. Housed in a 28-pin SO Package, PT6959' pin assignments and application circuit are optimized for s easy PCB Layout and cost saving advantages. FEATURES *CMOS Technology *Low Power Consumption *8-Step Dimming Circuitry *Serial Interface for Clock, Data Input, Strobe Pins *Available in 28-pin, SO Package APPLICATION *Micro-computer Peripheral Device PT6959 v1.3 Page 1 Updated December 2001 Princeton Technology Corp. LED Driver IC PIN CONFIGURATION Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6959 NC NC GND GR1 GR2 GR3 GR4 GND VDD SG14/GR5 SG13/GR6 SG12/GR7 SG11 SG10 PT6959 v1.3 Page 2 Updated December 2001 Princeton Technology Corp. LED Driver IC APPLICATION CIRCUIT 0.1uF Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6959 G1 51K MCU +5V S1 S2 S3 S4 S5 S6 S7 S8 S9 OSC DIN CLK STB VDD SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8 SG9 NC NC GND GR1 GR2 GR3 GR4 GND VDD SG14/GR5 SG13/GR6 SG12/GR7 SG11 SG10 G2 G3 G4 G1 G2 G3 G4 +5V S14 S13 S11 S10 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S12 DIGIT1 DIGIT2 DIGIT3 DIGIT4 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 4-GRID X 14-SEGMENT Note: The capacitor (0.1uF) connected between the GND and VDD Pins must be located as near as possible to the PT6959 chip. (COMMON CATHODE) PT6959 v1.3 Page 3 Updated December 2001 |
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