The C166 family is a 16-bit microcontroller architecture from
Infineon
Infineon Semiconductor solutions is the largest microcontroller manufacturer in the world, as well as Germany's largest semiconductor manufacturer. It is also the leading automotive semiconductor manufacturer globally. Infineon had roughly 58,0 ...
(formerly the semiconductor division of Siemens) in cooperation with
STMicroelectronics
STMicroelectronics Naamloze vennootschap, NV (commonly referred to as ST or STMicro) is a European multinational corporation, multinational semiconductor contract manufacturing and design company. It is the largest of such companies in Europe. ...
. It was first released in 1990 and is a controller for measurement and control tasks. It uses the well-established RISC architecture, but features some microcontroller-specific extensions such as bit-addressable memory and an interrupt system optimized for low-latency. When this architecture was introduced the main focus was to replace
8051
The Intel MCS-51 (commonly termed 8051) is a single-chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems. The architect of the Intel MCS-51 instruction set was John H. Wharton.. Intel's original versions w ...
controllers (from
Intel
Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...
).
Opcode-compatible successors of the C166 family are the C167 family,
XC167 family, the
XE2000 family and the
XE166 family.
As of 2017, microcontrollers using the C166 architecture are still being manufactured by NIIET in
Voronezh
Voronezh ( ; , ) is a city and the administrative centre of Voronezh Oblast in southwestern Russia straddling the Voronezh River, located from where it flows into the Don River. The city sits on the Southeastern Railway, which connects wes ...
, Russia, as part of the 1887 series of integrated circuits. This includes a
radiation-hardened device under the
designation 1887VE6T ().
C167 / ST10 family
The Siemens/Infineon ''C167 family'' or STMicroelectronics ''ST10 family''
ST10 16-bit MCUs - STMicroelectronics
/ref> is a further development of the ''C166 family''. It has improved addressing modes and support for "atomic" instructions. Variants include, for example, Controller Area Network
A controller area network bus (CAN bus) is a vehicle bus standard designed to enable efficient communication primarily between electronic control units (ECUs). Originally developed to reduce the complexity and cost of electrical wiring in aut ...
(CAN bus).
C167 architecture is used predominantly on German and German-owned automobile marques as well as certain models from Renault, Dacia, Peugeot, Citroen, Hyundai, Kia etc.
See also
* (CCU, CAPCOM)
* Peripheral Event Controller (PEC)
References
Digital electronics
Microcontrollers
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