Multifunction IC with MSC interface for engine management system

The L9779WD is an integrated circuit designed for automotive environment and implemented in BCD6S technology.

It is conceived to provide all basic functions for standard engine management control units.

It is assembled in the HiQUAD-64 power package.

Key Features

  • 5 V logic regulator
  • 3.3 V logic regulator
  • 5 V tracking sensor supply
  • Smart reset function
  • Power latch with Secure Engine Off (SEO) functionality, to safely complete driver switch off procedure
  • Flying wheel interface function (VRS) with adaptive time and amplitude control
  • Protected low-side relay driver
    • OUT13 to 18, MRD
  • Protected low-side (injector drivers)
    • OUT1 to 4
  • Protected low-side (high current)
    • OUT5, 6, 7
  • Protected low-side (low current)
    • OUT19, 20
  • IGBT pre-drivers (IGN1 to 4)
  • External MOS pre-drivers (OUT8 to 9)
  • Configurable power stages CPS
    • Stepper motor driver/ high-side - low-side (OUT21 to 28)
  • Thermal warning and shutdown
  • Serial interface
    • Micro Second Channel interface (MSC)
    • ISO9141 interface (K-Line)
  • High speed CAN transceiver
  • Dedicated pin VDDIO to select the voltage level of digital output used for serial communication
  • VDA 2.0 compliance with 3 level Watchdog
  • Package: HiQUAD-64


Technical Documentation

Product Specifications
Description Version Size
DS10861 DS10861: Multifunction IC for engine management system 5.0 2 MB

Publications and Collaterals

White Papers
Description Version Size
STMicroelectronics enables electronic control of the next generation of Gasoline Direct Injection (GDI) engines. 1.0 822 KB
Support & Community

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L9779WD-TR HI-QUAD 64 14x14 Tape And Reel -40 150 Active 8.4 1000 NEC EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office
L9779WD HI-QUAD 64 14x14 Tray -40 150 Active 8.4 1000 NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9779WD-TR ActiveHI-QUAD 64 14x14AutomotiveEcopack2 0 0
L9779WD ActiveHI-QUAD 64 14x14AutomotiveEcopack2 0 0

(**) The Material Declaration forms available on 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.