AD6315 is a VFD (Vacuum Fluorescent Display or fluorescent Indicator Panel) driver that is driven on a 1/4- to 1/12- duty factor. It consists of 16 segments and 4 grids output lines, 8 segments / grid output driving lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the AD6315 through a 3-wire serial interface. This VFD driver is ideal as a peripheral device for a single-chip microcomputer.
The AD6315 is a Vacuum Fluorescent Display (VFD) driver designed to operate on 1/4- to 1/12 duty factors. It supports multiple display modes ranging from 16 segments and 12 digits up to 24 segments and 4 digits, as well as key scanning for a 16 x 2 matrix.
| Duty Factor Range | 1/4- to 1/12 |
|---|---|
| Display Segments | 16-segment & 12-digit to 24-segment & 4-digit |
| Key Matrix Size | 16 x 2 matrix |
| Logic Supply Voltage | 4.5 to 5.5 V |
| Driver Supply Voltage | -35V |
| Operating Temperature | -25 to +85 °C |
| Package Type | 44-pin plastic QFP and LQFP |
The maximum clock frequency for a 50% duty cycle is 1 MHz.
No, the driver outputs do not require external resistors as they are P-ch open-drain with pull-down resistor output.
The device defaults to a 12-digit, 16-segment mode when power is applied.