EN80C186EA20

The EN80C186EA20 is a 16-bit microprocessor from Intel's i80186 series targeted at embedded applications. It implements a single 80C186 core with support for DRAM controllers and DMA interfaces to address common embedded system requirements.

Designed for surface-mount assembly and commercial-grade operation, this device is suitable for designs that require a compact 16-bit processing core with co‑processor support and standard embedded interfaces.

Key Features

• Processor Core — 80C186: Single 16-bit core providing deterministic, legacy 16-bit processing in an embedded form factor.
• Co-processor Support: Supports an external 80187 floating-point co-processor for systems that require additional numeric processing capability.
• Memory Controller: DRAM controller support for interfacing to external dynamic memory systems.
• Data Movement — DMA: Includes DMA interface to facilitate efficient data transfers with reduced CPU intervention.
• Mounting & Package: Surface-mount mounting type suited for modern PCB assembly processes.
• Operating Range: Commercial-grade temperature range of 0 °C to 70 °C for standard indoor and controlled-environment applications.
• Environmental Compliance: RoHS compliant, supporting lead-free assembly and regulatory requirements for many markets.
• Graphics Acceleration: No graphics acceleration, focusing the device on control and data processing tasks.

Typical Applications

• Embedded control systems: Use the 80C186 core with DRAM controller and DMA to implement control logic, I/O handling, and data buffering in embedded products.
• Industrial automation controllers: Deploy as a single-core 16-bit processor in commercial automation equipment operating within standard temperature ranges.
• Legacy system support and upgrades: Integrate into designs that require Intel i80186-series compatibility and external 80187 co-processor support for extended numeric processing.

Unique Advantages

• Focused 16-bit processing: Delivers predictable single-core 16-bit performance suitable for embedded control tasks.
• External FPU option: Ability to add an 80187 co-processor enables scalable numeric performance when needed without changing the base processor.
• Memory and DMA support: DRAM controller plus DMA interface reduce design complexity for memory-rich applications and high-throughput data movement.
• Surface-mount readiness: Surface-mount mounting type supports modern manufacturing and automated assembly workflows.
• Regulatory readiness: RoHS compliance helps meet environmental and assembly requirements for many commercial products.

Why Choose EN80C186EA20?

The EN80C186EA20 is positioned for embedded designs that require a straightforward 16-bit Intel i80186-series processor with DRAM controller and DMA support. Its surface-mount form factor and commercial temperature rating make it a practical choice for a wide range of indoor and controlled-environment applications.

By combining single-core 16-bit processing, external 80187 co-processor support, and memory/DMA interfaces, the EN80C186EA20 offers a clear, verifiable specification set for engineers designing embedded systems that rely on established Intel i80186 architecture.

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