TN80C188EA20

The TN80C188EA20 is an Intel i80188-series 80C186 microprocessor: a single-core, 16-bit MPU running at 20 MHz delivered in a 68-pin PLCC surface-mount package. It provides fundamental processing capability for embedded designs that require 16-bit architecture and 5 V I/O signalling.

Designed for embedded and commercial applications, the device supports external floating-point acceleration via the 80187 co-processor and includes system-oriented interfaces such as DRAM controller support and DMA to simplify memory and data-transfer tasks.

Key Features

• Core & Architecture — 80C186 16-bit single-core microprocessor from the Intel i80188 series.
• Clock Speed — Operates at 20 MHz for deterministic single-core processing.
• Voltage & I/O — 5 V I/O signalling compatible with legacy 5 V systems.
• Co-processor Support — Designed to work with an external 80187 floating-point unit for enhanced numeric performance.
• Memory & DMA — DRAM controller capability and DMA interface to streamline memory access and block transfers.
• Package & Mounting — 68-LCC (J-Lead) / 68-PLCC surface-mount package for compact PCB implementation.
• Operating Grade & Temperature — Commercial grade with an operating range of 0°C to 70°C.
• Environmental Compliance — RoHS compliant for use in regulated assemblies.

Typical Applications

• Embedded Systems — Single-core 16-bit processing at 20 MHz for control, monitoring, and compact embedded tasks.
• Legacy System Maintenance — Suitable for refurbishing or maintaining designs that use 5 V I/O and 68-PLCC packages.
• Industrial Control — Commercial-grade operation combined with DRAM and DMA support for standard industrial controller roles within 0°C–70°C environments.

Unique Advantages

• Proven 80C186 Core: Familiar Intel i80188 architecture for straightforward integration into existing 16-bit designs.
• Expandable Numeric Performance: External 80187 FPU support enables higher-precision arithmetic when required.
• System-Oriented Interfaces: Built-in DRAM controller and DMA support reduce external component count and simplify system design.
• Compact Surface-Mount Package: 68-PLCC (J-Lead) package supports dense PCB layouts and surface-mount assembly processes.
• Commercial Temperature Rating: 0°C to 70°C rating matches typical commercial application environments.
• RoHS Compliant: Conforms to RoHS requirements for environmentally regulated manufacturing.

Why Choose TN80C188EA20?

The TN80C188EA20 combines a well-established 80C186 16-bit core with practical system interfaces—DRAM controller, DMA—and external FPU support to address embedded designs that rely on deterministic, single-core processing at 20 MHz. Its 68-PLCC surface-mount package and 5 V I/O make it suitable for applications with legacy signaling and compact board layouts.

As a commercial-grade, RoHS-compliant Intel i80188-series part, the TN80C188EA20 is appropriate for engineers and procurement teams looking for a straightforward microprocessor solution for embedded and legacy projects operating within a 0°C to 70°C range.

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