AD6312

1/4- to 1/11 Duty VFD Controller/Driver AD6312 Features ˙4-pin serial interface ˙Key scanning (6× 4 matrices) ˙Programming display modes (11-segments & 11- digits to 16-segments & 6-digits) ˙Programming dimming step ˙High-voltage output (VDD-35V max). ˙4 channels LED ports. ˙4-pin General-purpose input port ˙Built-in oscillator ˙No external resistor necessary for driver outputs General Description The AD6312 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/4- to 1/11 duty factor (include key scan). It consists of 5 segment output lines, 6 segment/key scan output lines, 6 grid output lines, 5 segment/grid output drive lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the AD6312 through a four-line serial interface. Pin Assignments Grid5 Grid6 Seg16 / Grid7 Seg15 / Grid8 Seg14 / Grid9 Seg13 / Grid10 VEE Seg12 / Grid11 Seg11 Seg10 Seg9 33 32 31 30 29 28 27 26 25 24 23 Grid4 Grid3 Grid2 Grid1 VDD LED4 L...