Holtek 公司的HT16515是真空熒光顯示屏(VFD)控制器/驅動器,包括有16段輸出線,4個柵輸出線,8個段/柵輸出驅動線,4個LED輸出端口,控制電路,顯示存儲器以及掃描電路. HT16515邏輯電壓3.0V-5.5V,高她輸出最大為35V,可用于消費類電子屏功能控制,工業(yè)測量儀表屏功能控制以及其它相似屏功能控制.本文介紹了HT16515的主要特性和方框圖,以及典型應用電路圖.
HT16515:1/4 to 1/12 Duty VFD Controller
HT16515 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/4 to 1/12 duty factor. It consists of 16 segment output lines, 4 grid output lines, 8 segment/grid output drive lines, 4 LED output ports, a control circuit, a display memory, and a key scan circuit.
Serial data inputs to the HT16515 through a three-line serial interface. This VFD controller/driver is an ideal MCU peripheral device.
HT16515主要特性:
Logic voltage: 3.0V~5.5V
High-voltage output: VDD-35V max.
Multiple display (16-segment & 12-digit to 24-segment & 4-digit)
16_2 matrix key scanning
8 steps dimmer circuit
4 LED output ports
No external resistors necessary for driver output (provides PMOS open-drain and pull-low resistor output)
Serial interface with MCU (CLK, CS, DI, DO)
44-pin QFP package
HT16515應用:
Consumer products panel function control
Industrial measuring instrument panel function control
Other similar applications for panel function control
圖1.HT16515方框圖
圖2.HT16515典型應用電路圖
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