NT80386SX33

The NT80386SX33 is a single-core Intel386 SX microprocessor from the i386 series, implemented as a 32-bit CPU running at 33 MHz. Packaged in a 100-pin QFP surface-mount package and rated for commercial use, it is positioned for embedded applications requiring a compact, conventional 32-bit processing element.

Key design attributes include a 5 V I/O interface, DRAM controller support, optional Intel387 SX math co-processor compatibility, and an operating temperature range of 0 °C to 100 °C, making it suitable for commercial embedded systems and legacy platform maintenance.

Key Features

• Core and Architecture Single 32-bit Intel386 SX core operating at 33 MHz, providing a conventional 32-bit processing environment.
• Memory Support Integrated support for DRAM controllers to interface with system memory configurations.
• Co-processor Compatibility Supports a math engine via Intel387 SX co-processor for hardware-assisted floating-point operations.
• Power and I/O 5 V I/O voltage level for compatibility with systems designed for this signaling standard.
• Package and Mounting Supplied in a 100-pin QFP (100-QFP) surface-mount package for PCB-mounted embedded designs.
• Operating Range Commercial-grade operating temperature from 0 °C to 100 °C.
• Environmental Compliance RoHS compliant.
• Graphics No onboard graphics acceleration.

Typical Applications

• Embedded Control Systems — Acts as the main processor for single-board controllers and compact embedded devices where a 32-bit CPU is required.
• Industrial Equipment — Suited for commercial industrial controllers and instrumentation operating within the 0 °C to 100 °C range.
• Legacy Platform Maintenance — Replacement or refurbishment of existing i386-based systems that require a 33 MHz Intel386 SX-class MPU.
• Education and Development — Useful for learning, development, and prototyping on classic 32-bit architecture platforms.

Unique Advantages

• Established i386 SX Core: Provides a single 32-bit core at 33 MHz for straightforward integration into existing 32-bit designs.
• Co-processor Support: Compatibility with the Intel387 SX math engine enables hardware-assisted floating-point processing when needed.
• DRAM Interface Capability: Built-in DRAM controller support simplifies memory subsystem design for embedded applications.
• Standard 100‑QFP Package: 100-pin QFP surface-mount package supports dense PCB layouts and standard assembly processes.
• Commercial Temperature Range: 0 °C to 100 °C rating fits a wide range of commercial embedded deployments.
• RoHS Compliant: Meets RoHS environmental requirements for materials compliance.

Why Choose NT80386SX33?

The NT80386SX33 delivers a compact, commercial-grade 32-bit processing solution in a 100-QFP surface-mount package. With a 33 MHz Intel386 SX core, DRAM controller support, and optional Intel387 SX co-processor compatibility, it addresses embedded designs and legacy system requirements that rely on a traditional i386-class MPU.

This part is suited to designers and procurement teams seeking a verifiable, RoHS-compliant Intel i386 series processor for commercial embedded applications where a known 5 V I/O interface, surface-mount package, and 0 °C to 100 °C operating range are required.

Request a quote or submit your part requirements today to receive pricing and availability for the NT80386SX33. Our team can provide ordering information and help with volume inquiry details.