KU80386SLB1A20

The KU80386SLB1A20 is an Intel386 SL-series microprocessor supplied in a 196-pin PQFP surface-mount package. It implements a single 32-bit core operating at 20 MHz and is offered for embedded system applications.

Designed for commercial-grade embedded designs, this device provides a 32-bit processing foundation with DRAM memory controller support and compatibility with the Intel 387 SX math coprocessor for enhanced numeric performance.

Key Features

• Core and Architecture Single Intel386 SL core providing 32-bit processing capability suitable for embedded microprocessor tasks.
• Performance 20 MHz operating speed delivering deterministic processing for time-sensitive embedded functions.
• Coprocessor Support Compatible with Intel387 SX math engine coprocessor to accelerate floating-point and numeric computations.
• Memory Interface DRAM memory controller support for systems that require external dynamic RAM.
• Package and Mounting 196-pin PQFP (38.1 × 38.1 mm) surface-mount package, listed as 196-BFQFP/196-PQFP for compact board-level integration.
• Operating Range and Grade Commercial grade with an operating temperature range of 0 °C to 90 °C, suitable for standard embedded environments.
• Environmental Compliance RoHS compliant to meet common environmental and manufacturing requirements.

Typical Applications

• Embedded Systems Core 32-bit processing for embedded products where a 20 MHz Intel386 SL processor is required.
• DRAM-Based Designs Designs that leverage external DRAM for program and data storage can use the device’s DRAM controller support.
• Numeric and Scientific Offload Systems requiring enhanced numeric performance can integrate the Intel387 SX coprocessor for math-intensive tasks.

Unique Advantages

• Proven 32‑bit Intel386 SL Core: Provides a familiar 32-bit architecture at 20 MHz for established embedded designs.
• Math Coprocessor Compatibility: Support for the Intel387 SX permits offloading floating-point workloads to improve numeric throughput.
• Compact Surface-Mount Package: 196-pin PQFP (38.1 × 38.1 mm) facilitates high-density PCB integration while maintaining full pinout access.
• DRAM Support: Integrated support for DRAM memory configurations simplifies system memory architecture choices.
• Commercial Temperature Range and RoHS Compliance: Suitable for standard commercial embedded deployments with environmental compliance for manufacturing.

Why Choose KU80386SLB1A20?

The KU80386SLB1A20 combines a single Intel386 SL 32-bit core running at 20 MHz with DRAM controller support and coprocessor compatibility in a compact 196‑pin PQFP surface-mount package. Its commercial-grade operating range and RoHS compliance make it appropriate for established embedded designs that rely on this architecture.

Choose this part when your design requires a straightforward 32-bit processing element with the option to add math coprocessing and DRAM-based memory systems, all delivered in a package suited for high-density board layouts.

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