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STM86312 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. STM86312
Description  1/4 TO 1/11-DUTY VFD CONTROLLER/DRIVER
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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 1 page
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1/16
May 2004
s
MANY DISPLAY MODES (11 SEGMENTS &
11 DIGITS TO 16 SEGMENTS & 4 DIGITS)
s
KEY SCANNING (6 x 4 MATRIX)
s
DIMMING CIRCUIT (EIGHT STEPS)
s
HIGH-VOLTAGE OUTPUT (VDD –35V MAX)
s
LED PORTS (4 CHS, 20mA MAX)
s
GENERAL PURPOSE INPUT PORT (4 bits)
s
NO EXTERNAL RESISTOR NECESSARY
FOR DRIVER OUTPUT (P-CH OPEN DRAIN
+ PULL DOWN RESISTOR OUTPUT)
s
SERIAL INTERFACE (CLK, STB, DIN,DOUT)
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.
ORDERING CODES
Type
Temperature
Range
Package
Comments
STM86312
-40 to 85 °C
PQFP44
250 parts per Reel
STM86312
1/4 TO 1/11-DUTY VFD CONTROLLER/DRIVER
PQFP44
Rev. 1




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