STM86312_06 Datasheet, PDF (1/24 Pages) STMicroelectronics – 1/4 to 1/11-duty VFD controller/driver

STM86312
1/4 to 1/11-duty VFD controller/driver
General features
■ 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 (V_DD – 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, D_IN, D_OUT)
PQFP44
Description
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.
Order codes
Part number
STM86312
Temperature range
-40 to 85 °C
Package
PQFP44
March 2006
Rev 2
Tube
Tray
1/24
www.st.com
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