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| Princeton Technology Corp. VFD Driver Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6312 DESCRIPTION PT6312 is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/4 to 1/11 duty factor. Eleven segment output lines, 6 grid output lines, 5 segment/grid output drive 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 micro computer. Serial data is fed to PT6312 via a three-line serial interface. It is housed in a 44-pin plastic QFP or LQFP Package and is functionally compatible with pD16312. FEATURES ! ! ! ! ! ! ! ! ! ! ! CMOS Technology Low Power Consumption Key Scanning (6 x 4 matrix) Multiple Display Modes: (11 segments, 11 digits to 16 segments, 6 digits) 8-Step Dimming Circuitry LED Ports Provided (4 channels, 20 mA max.) 4- Bits General Purpose Input Ports Provided Serial Interface for Clock, Data Input, Data Output, Strobe Pins No External Resistors Needed for Driver Outputs Functional Compatibility with pD16312 Available in 44-pin, QFP or LQFP Package APPLICATION ! Micro-computer Peripheral Device PT6312 v1.7 Page 1 Updated Feb. 2000 Princeton Technology Corp. VFD Driver Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6312 PIN CONFIGURATION Figure 2: PT6312 Pin Configuration PT6312 v1.7 Page 2 Updated Feb. 2000 Princeton Technology Corp. VFD Driver Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6312 ORDER INFORMATION V lid Part N umber a PT6312 PT6312LQ Package T pe y 44 pins, Q FP Package 44 pins, LQ FP Package 6-GRID X 16-SEGMENT VFD APPLICATION CIRCUIT PT6312 v1.7 Page 3 Updated Feb. 2000 |
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