Overview
The STFPC311BTR, produced by STMicroelectronics, is a comprehensive and integrated front panel controller and driver designed for Vacuum Fluorescent Displays (VFDs). This IC is optimized for low-cost and low-power applications, making it ideal for reducing standby power consumption in various electronic devices. It integrates multiple functionalities, including a VFD driver, remote control decoder, and power management features, which simplify the design and operation of front panel systems.
Key Specifications
| Parameter | Description |
|---|---|
| Display Type | Vacuum Fluorescent (VF) |
| Interface | Serial (SPI) |
| Supply Voltage | 3 V to 33.3 V |
| Supply Current | 5 mA |
| Operating Temperature | -40°C to 85°C |
| Package | PQFP-52 |
| Segment/Grid Outputs | Up to 20 segments and 16 grids |
| Key Scanning | Up to 12mm x 2mm matrix |
| LED Ports | 4 channels, 20 mA max |
| Remote Control | Philips or NEC format IR decoder |
| Dimming Circuit | Adjustable up to 8 steps |
Key Features
- Integrated VFD driver and controller with high voltage outputs (VDD - 33.3V max)
- No external resistors necessary for driver outputs (P-channel open-drain with pull-down resistor outputs)
- Serial interface (STB, CLK, DIN, and DOUT) for communication with microcontrollers
- Remote control decoder supporting Philips or NEC format IR signals
- Key scanning capability for up to 12mm x 2mm matrix
- LED ports with 4 channels, each capable of 20 mA max
- Dimming circuit adjustable up to 8 steps
- Programmable 8 hot keys for IR remote control and key scan commands
- Low power consumption in standby mode
- General-purpose input ports (SW1, SW2)
Applications
- DVD players
- VCD players
- AV equipment like Home Stereo
- POS Systems
Q & A
- What is the primary function of the STFPC311BTR? The STFPC311BTR is a front panel controller and driver for Vacuum Fluorescent Displays (VFDs), integrating power management and remote control decoding.
- What is the supply voltage range for the STFPC311BTR? The supply voltage range is from 3 V to 33.3 V.
- What type of interface does the STFPC311BTR use? The STFPC311BTR uses a serial interface (SPI) for communication with microcontrollers.
- How many segment and grid outputs does the STFPC311BTR support? It supports up to 20 segments and 16 grids.
- Does the STFPC311BTR require external resistors for driver outputs? No, it does not require external resistors as it has P-channel open-drain outputs with pull-down resistors.
- What types of remote control signals does the STFPC311BTR support? It supports Philips or NEC format IR signals.
- How many LED ports does the STFPC311BTR have and what is their current capacity? It has 4 LED ports, each capable of 20 mA max.
- Can the dimming circuit of the STFPC311BTR be adjusted? Yes, the dimming circuit can be adjusted up to 8 steps.
- What is the operating temperature range of the STFPC311BTR? The operating temperature range is from -40°C to 85°C.
- What package type is the STFPC311BTR available in? It is available in a PQFP-52 package.
