STM86312

STM86312 The STM86312 is a VFD (Vacuum Fluorescent  Display) controller/driver that is driven on a 1/4 to  1/11-duty factor. It consists of 11-segments output  lines, 6 grid output lines, 5 segments/grid output  drive lines, a display memory, a control circuit,  and a key scan circuit. Serial data are input to the  STM86312 through a three-line serial interface.  This VFD controller/driver is ideal as a peripheral  device for a single-chip microcomputer.

Many display modes (11 segments & 11 digits 
to 16 segments & 4 digits)
■ Key scanning (6 x 4 matrix)
■ Dimming circuit (eight steps)
■ High-voltage output (VDD– 35V max)
■ LED ports (4 chs, 20mA max)
■ General purpose input port (4 bits)
■ No external resistor necessary for driver output 
(P-channel open drain + pull down resistor 
output)
■ Serial interface (CLK, STB, DIN, DOUT)