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  • 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.

    Key Features

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

Circuit Diagram

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Technical Documentation

    • Description Version Size Action
      DS3903
      1/4 to 1/11-duty VFD controller/driver
      2.2
      327.48 KB
      PDF
      DS3903

      1/4 to 1/11-duty VFD controller/driver

Publications and Collaterals

    • Description Version Size Action
      STLED316S 2.1
      937.68 KB
      PDF

      STLED316S

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM86312
NRND
PQFP 44 10x10x2 Industrial Ecopack1

STM86312

Package:

PQFP 44 10x10x2

Material Declaration**:

Marketing Status

NRND

Package

PQFP 44 10x10x2

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
STM86312 No availability of distributors reported, please contact our sales office PQFP 44 10x10x2
NRND
EAR99 PHILIPPINES

STM86312

Package

PQFP 44 10x10x2

Marketing Status

NRND

Budgetary Price (US$)*/Qty

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors