IS80C286-20

The IS80C286-20 is a Renesas 80C286-family microprocessor in a 68-pin PLCC surface-mount package. It implements a single 16-bit core running at 20 MHz and provides integrated memory management and protection features suitable for embedded and industrial applications.

Designed with a static CMOS architecture and industrial qualification, the device targets systems that require deterministic 16-bit processing, robust memory management, and extended-temperature operation.

Key Features

• Core and Performance — Single 16-bit 80C286 core operating at 20 MHz for legacy 16-bit processing needs.
• Memory Management and Protection — Integrated memory management supporting large address spaces and protection mechanisms as described in the 80C286 series datasheet.
• Co-Processor Support — Supports the 80C287 math engine co-processor for enhanced numeric processing.
• Static CMOS Low-Power Design — Static CMOS architecture with low standby current characteristics specified for the 80C286 series.
• Power and I/O — 5 V I/O supply compatibility for standard 5 V embedded systems.
• Package and Mounting — 68-pin PLCC (24.23 × 24.23 mm) in a surface-mount, J-lead 68-LCC package.
• Industrial Temperature Range — Qualified for operation from −40 °C to +85 °C for deployment in industrial environments.

Typical Applications

• Industrial Control and Automation — 16-bit processing and industrial temperature qualification make it suitable for PLCs, factory controllers, and I/O modules.
• Embedded Systems with Memory Protection — Integrated memory management and protection support operating systems and multi-tasking embedded platforms.
• Legacy System Maintenance and Upgrades — Compatible with the 80C286 family architecture for refurbishment or replacement in existing 286-class designs.

Unique Advantages

• Proven 16‑bit Architecture: Single 80C286 core delivers established 16-bit processing behavior for legacy and embedded applications.
• Integrated Memory Management: Series-level memory management provides large virtual and physical address mapping and protection mechanisms to simplify system-level memory design.
• Co‑Processor Capability: Support for the 80C287 math engine enables offloading of numeric computations to accelerate math-intensive tasks.
• Industrial Qualification: Specified for −40 °C to +85 °C operation for reliable use in industrial temperature environments.
• Surface‑Mount PLCC Packaging: 68‑pin PLCC (24.23 × 24.23 mm) provides a compact, board-level mounting option for space-conscious designs.
• Standard 5 V I/O: 5 V I/O compatibility eases integration into existing 5 V embedded systems and legacy interfaces.

Why Choose IS80C286-20?

The IS80C286-20 combines a well-established 16-bit 80C286 core with integrated memory management and industrial-grade qualification, delivering a reliable option for embedded designs that require deterministic processing and task isolation. Its surface-mount 68‑PLCC package and 5 V I/O compatibility make it straightforward to integrate into existing board designs.

This device is well-suited for engineers maintaining or developing systems that benefit from the 80C286 architecture—especially where memory protection, co-processor support, and extended-temperature operation are required.

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