AD6315

1/4- to 1/12 Duty VFD Controller/Driver AD6315 Features - Multiple display modes (16-segment & 12-digit to 24-segment & 4-digit) - Key scanning (16 x 2 matrix) - Dimming circuit (eight steps) - High-voltage output ( VEE (max) = VDD – 35V ) - 4 channel LED ports - No external resistors necessary for driver outputs (P-ch open-drain + pull-down resistor output) - Serial interface (CLK, STB, DIN, DOUT) - Package: 44-pin plastic QFP and LQFP General Description The 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. Pin Assignments Seg19/Grid10 Seg18/Grid11 Seg17/Grid12 VEE Seg16/KS16 Seg15/KS15 Seg14/KS14 S...