STFPC311 Quad 2-Channel Multiplexer with 5V Tolerant Input & Output (3-State)
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).
技术特性
- 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, D IN, 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
| 功能框图
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STFPC311 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STFPC311BTR |
Active |
|
|
PQFP 52 10x10x2 |
|
|
STFPC311BTR |
DATASHEET
| 描述 |
版本 |
大小 |
| STFPC311 : DS4731: Front panel controller/driver with standby power management |
1 |
569KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM0276: STFPC311 LED evaluation board hardware description and user manual |
2 |
503KB |
| UM0213 : STFPC311 evaluation board hardware description and user guide |
1 |
932KB |
FLYERS
| 描述 |
版本 |
大小 |
| FLVFD0907 : STFPC311: VFD front panel solution |
1.0 |
237KB |
