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STFPC311 Datasheet(PDF) 1 Page - STMicroelectronics |
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STFPC311 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 39 page  May 2006 Rev 1 1/39 39 STFPC311 Front panel controller/driver with standby power management Features ■ IC front panel controller/driver ■ Timing power standby management controller ■ IC power supply from 3.3V (VDD) to –30V (VSS) ■ Integrated VFD driver and controller ■ Infrared (IR) Remote Control (RC) Decoder (Philips or NEC format) ■ Drives many display modes (12 segments/16 digits to 20 segments/8 digits) ■ High voltage outputs (VDD - 33.3V max) ■ No external resistors necessary for driver outputs (P-channel open- drain with pull-down resistor outputs) ■ Key scanning (up to 12mm x 2mm matrix) ■ Led ports (4 channels, 20mA, max) ■ Serial interface (STB, CLK, DIN, and DOUT) communication protocol ■ Dimming circuit (adjustable up to 8 steps) ■ Supports auto-increment of display digit, which lightens the load on the MCU ■ Programmable 8 hot keys for the IR remote control command ■ Programmable 8 hot keys for key scan command ■ Low power consumption in standby mode ■ 2 general purpose input ports (SW1, SW2) ■ Available in PQFP-52 package Description The STFPC311 is a complete, low-cost, integrated solution for controlling and driving a front panel Vacuum Fluorescent Display (VFD). It is ideal for decreasing power consumption in standby mode by reducing the application standby current to a minimum. It also contains a built-in remote control decoder module. While in the standby mode of operation, a valid key press or signal from infrared decoder will start a proper power-up see Figure 6 on page 12. The STFPC311 integrates a VFD controller with a driver that is run on a 1/8 to 1/16-duty factor. It consists of 12 segments output lines, 8 grid output lines, 8 shared segments/grid output drive lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the STFPC311 through the SPI Interface of a microcontroller (STB, DIN, DOUT, and CLK). Additionally, this IC can support 2 general purpose input switches (SW1 and SW2). Features ■ DVD players ■ VCD players ■ AV equipment like Home Stereo ■ POS Systems PQFP-52 www.st.com Order Codes Part number Temperature range Package STFPC311 -40 to 85°C PQFP-52 |
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