高亮度显示屏VFD的驱动芯片VF202及其应用

The High Light VFD Driving ASIC Chip VF202 and Its Application

VF2 0 2是深圳矽谷电子系统有限公司生产的高亮度真空荧光显示屏 (VFD)驱动芯片 ,该芯片具有 40个高耐压的输出端口 ,采用串行接口 ,可单独和级联使用 ,功能强大 ,控制简单。介绍了VF2 0 2的内部框图和功能 ,阐述了它的基本工作原理 ,应用范围 ,并采用单片机设计了一套VF2 0 2在空调显示电路中应用的电路和软件。

VF202 is a Vacuum Fluorescent Display driver chip produced by Shenzhen SiliconGold electronics design company. It has 40 high-voltage output pins, 3-line series interface, can work in single mode or series-joint mode, so the functions are very useful and easily to be realized. The internal frameworks and functions about VF202 chip are proposed in this paper. Its principle and application field are also stated. Based on a microprocessor,a circuit which uses VF202 for air-condition display and its software are designed.