Intel RH80536NC0211M: A Technical Examination of Intel's Legacy Embedded Processor
The Intel RH80536NC0211M represents a specific part number within a family of processors that powered a vast array of embedded systems throughout the late 1990s and 2000s. This component is a commercial temperature-grade variant of the Intel Celeron M processor, based on the highly successful Intel Pentium M microarchitecture (codenamed "Banias" and "Dothan"). Unlike its desktop counterparts, this processor was engineered for longevity and stability in demanding embedded, communications, and network applications.
At its core, the RH80536NC0211M leverages the fundamental strengths of the Pentium M design. This architecture was famously developed by Intel's Israel team (IDC) and was a pivotal innovation for its time, emphasizing high performance per clock cycle over pure raw clock speed. Key features include an advanced 16-stage pipeline, an optimized 1MB L2 cache, and enhanced power management capabilities. For embedded designers, this meant a capable processing core that could handle complex tasks without excessive power consumption or thermal output.
The specific part number decodes to reveal its critical specifications. It denotes a 1GHz clock speed, a 400MHz Front-Side Bus (FSB), and a 1.35V core voltage. The "NC" suffix often indicates a 478-pin Micro-FCPGA package, which was surface-mounted onto a host PCB for mechanical stability in environments subject to shock and vibration. The "Commercial" temperature rating typically specifies an operational range from 0°C to 70°C, making it suitable for controlled environments like networking cabinets, point-of-sale systems, and industrial computers.
The application space for this processor was extensive. It was a cornerstone for:
Network Attached Storage (NAS) devices

Entry-level network routers and firewalls
Industrial Automation and Control Systems
Digital Signage and Kiosks
Thin Clients and Embedded PCs
Its legacy is defined by its remarkable balance of efficiency, performance, and reliability. At a time when embedded computing was rapidly evolving, processors like the RH80536NC0211M provided a proven, x86-compatible platform that developers could trust for long product lifecycles, often exceeding seven years of availability.
ICGOOODFIND: The Intel RH80536NC0211M stands as a testament to a pivotal era in embedded computing. It exemplifies how Intel adapted its mobile computing genius for the rigorous demands of the embedded market, delivering a component that was not just a CPU, but a reliable foundation upon which countless critical systems were built. Its architectural efficiency and long-term availability made it an unsung hero of the connected world.
Keywords: Intel Celeron M, Embedded Systems, Micro-FCPGA, Pentium M Microarchitecture, Low Power Consumption
