S12XB Automotive and IndustrialMicrocontrollers (MCUs)

  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

Product Details

Block Diagram

S12XB Microcontroller Block Diagram

S12XB Microcontroller Block Diagram


  • 16-bit CPU12X
  • Upward compatible with MC9S12 instruction set
  • Enhanced interrupt module
  • XGATE coprocessor
  • 128 KB to 256 KB flash EEPROM
  • 1 KB to 2 KB EEPROM
  • 6 KB to 10 KB RAM
  • 8 or 16-channel analog-to-digital converter (ADC), 8 or 10-bit resolution
  • 8-channel, 16-bit timer enhanced capture timer
  • 8-channel by 8-bit or 4-channel by 16-bit pulse width modulator
  • 1 Mbps, CAN 2.0 A, B software compatible
  • Two serial communications interface, one serial peripheral interface and two inter-integrated circuit interfaces

Part numbers include: MC9S12XB128MAA, S912XB128F2CAL, S912XB256F1CAL.


Quick reference to our documentation types.

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Design Resources


2 hardware offerings


5 software files

Note: For better experience, software downloads are recommended on desktop.


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