STFPC311| Datasheet

STFPC311, STFPC311BTR

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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 PQFP-52

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
Package PQFP-52

Order Codes
Part number STFPC311

Temperature range -40 to 85 C

May 2006

Rev 1

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