System Basis Chips (SBCs)

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A system basis chip (SBC) is a integrated circuit which contains many of the functions of an automotive electronic control unit (ECU) on a single die1.

SBCs are offered by many IC manufacturers including:

  • Texas Instruments
  • NXP
  • Infineon
  • STMicroelectronics
Architecture block diagram of the NXP FS26 SBC[^nxp-fs26-product-page].

Architecture block diagram of the NXP FS26 SBC2.

SBCs are similar in functionality to power management ICs (PMICs). SBCs appear to have more of a automotive focus with the addition of CAN and LIN transceivers, along with the addition of automotive functional safety blocks (e.g. rated to ASIL-B, ASIL-D) such as fail-safe outputs.


  1. Wikipedia (2020, Jan 6). System basis chip. Retrieved 2024-04-03, from↩︎

  2. NXP. Safety System Basis Chip with Low Power, for ASIL D Systems [product page]. Retrieved 2024-04-03, from↩︎


Geoffrey Hunter

Dude making stuff.

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