The AD6312 is a VFD (Vacuum Fluorescent Display) controller/driver with a 1/4- to 1/11 duty factor. It features a 4-pin serial interface, key scanning, programming display modes, programming dimming step, high-voltage output, 4 channels LED ports, 4-pin general-purpose input port, built-in oscillator, and no external resistor necessary for driver outputs.
The AD6312 is a Vacuum Fluorescent Display (VFD) controller and driver designed for 1/4- to 1/11 duty factors, including key scanning capabilities. It features a 4-pin serial interface for programming display modes, dimming steps, and data settings. The device integrates segment and grid drivers, a display memory, and a key scan circuit, requiring no external resistors for driver outputs.
Key features include high-voltage outputs up to 35V peak-to-peak, four channels of LED ports, and a built-in oscillator. The chip supports various display configurations from 4 digits to 11 digits and includes a 6x4 key matrix. It is available in QFP-44L and LQFP-44L packages.
| Duty Factor | 1/4- to 1/11 |
|---|---|
| Logic Supply Voltage | 4.5 to 5.5 V |
| Operating Ambient Temperature | -25 to +85 °C |
| Maximum Clock Frequency | 1 MHz |
| LED Driver Output Current | +15 mA |
| VFD Driver Output Current (Segment) | -18 mA |
The maximum high-voltage output is 35V peak-to-peak.
No, the device does not require external resistors for its driver outputs.
The operating ambient temperature range is from -25 to +85 °C.