FA80386EXTC33

The FA80386EXTC33 is an Intel i386-series microprocessor in a 144-TQFP (20×20) surface-mount package. It implements a single 32-bit Intel386 EX core operating at 33 MHz with 5 V I/O and is offered in an industrial grade variant for embedded applications.

Designed for embedded and industrial systems that require a compact, board-mountable 32-bit MPU with DRAM controller support and external 80387 FPU compatibility, this device provides deterministic single-core processing across a wide operating temperature range.

Key Features

• Core — Single Intel386 EX 32-bit processor core operating at 33 MHz for deterministic embedded processing.
• Memory — Integrated DRAM controller support to interface with external memory subsystems.
• Co-processor Support — Designed to work with an external 80387 floating-point coprocessor for hardware-accelerated floating-point operations.
• Power and I/O — 5 V I/O voltage compatibility for integration with legacy and industrial-level signaling domains.
• Package and Mounting — 144-TQFP (20×20) surface-mount package suitable for compact PCB layouts and automated assembly.
• Industrial Temperature Range — Rated for operation from −40 °C to 120 °C to meet demanding environmental requirements.
• Compliance — RoHS compliant.
• Graphics — No integrated graphics acceleration, focusing silicon resources on CPU and system control functions.

Typical Applications

• Embedded Control — Single-core 32-bit processing for control and monitoring tasks in embedded systems.
• Industrial Automation — Industrial-grade temperature rating and 5 V I/O compatibility for factory and process control equipment.
• DRAM-Based Systems — Systems that require an onboard DRAM controller for external memory interfacing.
• Float-Point Offload — Applications that pair the MPU with an external 80387 FPU to handle floating-point workloads.

Unique Advantages

• Industrial Temperature Capability: −40 °C to 120 °C rating supports deployment in harsh and temperature-variable environments.
• Legacy Voltage Compatibility: 5 V I/O simplifies integration into existing 5 V embedded and industrial designs.
• Compact Surface-Mount Package: 144-TQFP (20×20) footprint enables space-efficient PCB designs and automated assembly processes.
• External FPU Support: Compatibility with the 80387 coprocessor allows offloading of floating-point tasks when required by the application.
• Focused Compute Design: A single 32-bit core provides deterministic processing for control-oriented workloads.
• RoHS Compliant: Meets environmental compliance requirements for modern manufacturing.

Why Choose FA80386EXTC33?

FA80386EXTC33 positions itself as a practical choice for embedded and industrial designers who need a single 32-bit Intel386 EX core with 33 MHz operation, DRAM controller support, and compatibility with an external 80387 FPU. Its 5 V I/O and wide operating temperature range make it suitable for integration into existing industrial platforms and harsh-environment applications.

This MPU provides a compact, surface-mount solution in a 144-TQFP package for space-constrained boards, while RoHS compliance and industrial-grade specification support long-term deployment in embedded systems and industrial equipment.

Request a quote or submit an inquiry to receive pricing and availability information for FA80386EXTC33 for your next embedded or industrial design project.