JA80386EXTC33

The JA80386EXTC33 is an Intel 386 EX microprocessor in a 144-TQFP (20×20) package. It features a single 32-bit core running at 33 MHz and is targeted for embedded and industrial applications requiring a compact, surface-mount CPU.

With a 5 V I/O interface, support for external 80387 floating-point co-processor, an integrated DRAM controller, and an extended operating temperature range, this device provides a dependable building block for industrial and embedded system designs.

Key Features

• Core & Architecture Intel386 EX single-core, 32-bit microprocessor operating at 33 MHz for deterministic embedded processing.
• Memory & Co-processor Support Integrated DRAM controller and support for an external 80387 FPU to extend numeric and memory capabilities.
• Power & I/O 5 V I/O voltage compatible with legacy embedded interfaces and board-level systems.
• Package & Mounting 144-TQFP package (20×20 mm) designed for surface-mount assembly to fit compact PCB layouts.
• Operating Range & Grade Industrial-grade device rated for operation from -40°C to 120°C, suitable for harsh environment deployments.
• Compliance RoHS compliant.
• Graphics No graphics acceleration; intended for general-purpose embedded compute tasks rather than graphic-intensive workloads.

Typical Applications

• Embedded Systems — Compact surface-mount package and 32-bit processing make it suitable for general embedded control and processing tasks.
• Industrial Control & Automation — Industrial-grade temperature rating and DRAM controller support enable use in control electronics and automation equipment.
• Instrumentation — Single-core deterministic processing and external FPU support allow deployment in measurement and test instruments requiring reliable computation.
• Legacy Equipment Modernization — 5 V I/O and Intel386 EX architecture support integration into boards and systems that maintain legacy voltage and interface requirements.

Unique Advantages

• Industrial Temperature Capability: Rated from -40°C to 120°C, enabling operation in demanding environmental conditions.
• Compact Surface-Mount Package: 144-TQFP (20×20) minimizes board footprint while supporting standard SMT assembly.
• External FPU Support: Compatibility with the 80387 floating-point co-processor allows enhanced numeric performance when required.
• Integrated DRAM Controller: Simplifies memory subsystem design by providing on-chip DRAM controller support.
• RoHS Compliant: Meets environmental compliance requirements for modern electronic manufacturing.
• Standard 5 V I/O: Facilitates integration with existing 5 V logic systems and legacy boards.

Why Choose JA80386EXTC33?

The JA80386EXTC33 combines the Intel386 EX single 32-bit core, DRAM controller, and external 80387 FPU support in a compact 144-TQFP surface-mount package, making it a practical choice for embedded and industrial designs that require reliable, legacy-compatible processing. Its 5 V I/O and industrial temperature rating provide design continuity for long-lived systems operating in challenging environments.

Designed for engineers and procurement teams seeking a proven microprocessor building block, this part offers a focused set of capabilities—deterministic 33 MHz processing, expandable numeric performance, and a small PCB footprint—aligned to embedded applications where stability and environmental tolerance are primary concerns.

Request a quote or submit an inquiry today to evaluate the JA80386EXTC33 for your next embedded or industrial design project.