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  • MC9S12E256MFUE

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MC9S12E256MFUE Overview

The MC9S12E is a 112/80-pin, cost-effective, general-purpose MCU family, using the important on-chip features needed for your automotive designs.The MC9S12E has full 16-bit data paths throughout.The inclusion of a phase-lock look (PLL) circuit allows power consumption and performance to be adjusted to suit operational requirements.An on-chip bandgap-based voltage regulator (Vreg) generates the internal digital supply voltage of 2.5 V (VDD) from a 3.15–5.5 V external supply range.
S12E Microcontroller Block Daigram


  • HCS12 CPU
  • Upward compatible with M68HC11 instruction set
  • Interrupt stacking and programmer's model identical to M68HC11
  • Instruction queue
  • Enhanced indexed addressing
  • Up to 16 KB of RAM
  • Three asynchronous serial communications interface modules (SCI)
  • Serial peripheral interface (SPI)
  • Inter-IC bus (IIC)
  • Three 4-channel 16-bit timer modules (TIM)
  • 6-channel 15-bit pulse modulator with fault protection module (PMF)
  • 6-channel 8-bit pulse width modulator (PWM)
  • 16-channel 10-bit analog-to-digital converter (ADC)
  • Two 1-channel 8-bit digital-to-analog converters (DAC)
  • Module mapping control (MMC)
  • Interrupt control (INT)
  • Background debug module (BDM)
  • Debugger (DBG12) including breakpoints and change-of-flow trace buffer
  • Multiplexed external bus interface (MEBI)
  • Wake-up interrupt inputs
  • Up to 16 port bits available for wake-up interrupt function with digital filtering
  • Memory options
  • 32, 64, 128 and 256 KB flash EEPROM
  • 2, 4, 8 or 16 KB RAM


  • Automotive
  • Diesel Engine Management
  • Heating Ventilation, and Air Conditioning (HVAC)
  • Motorcycle Engine Control Unit (ECU) and Small Engine Control
  • Industrial
  • Air Conditioning (AC)
  • Diabetes Care
  • Electricity Grid and Distribution
  • Gas Meter
  • Heat Metering
  • Industrial HMI
  • Patient Monitor
  • Smart Power Socket and Light Switch
  • Vital Signs Monitors
  • Water Meter
  • Mobile
  • Input Device (Mouse, Pen, Keyboard)
  • Wireless Charging Pad
  • Wristband
  • Smart Home
  • Home Security and Surveillance
  • Major Home Appliances
  • Robotic Appliance
  • Small and Medium Appliances

Product Parameters

  • Security Status


  • Number of pins


  • Description

    MC9S12E256 80 LQFP

  • Package Style


Technical Documents

  • SCI Interrupt Errata Workaround for HCS12 Family Family DevicesDetails>>

  • Using Background Debug Mode for the M68HC12 FamilyDetails>>

  • A FLASH MCU SOLUTION MC9S12E128/E64 16-bit Microcontroller - Fact SheetDetails>>

  • PMF Module Workaround for MC9S12E128 2L15P Mask SetDetails>>

  • AN2552/D: Configuring the System and Peripheral Clocks in the MC9S12E128Details>>

Other distributor's price

Distributor Part # Mfg. Description Price
digikey MC9S12E256MFUE Flip Electronics IC MCU 16BIT 256KB FLASH 80QFP