TS68020MR16

Overview

The TS68020MR16 is a high-performance 32-bit RISC microprocessor from the TS68000 family, implemented in HCMOS technology. It features a pipelined architecture with an on-chip instruction cache and supports processor speeds of 16.67 MHz, 20 MHz, or 25 MHz. The device utilizes a 5.0 VDC ± 10% power supply and offers a 4-Gbyte direct addressing range via 32-bit address and data buses. It includes sixteen 32-bit general-purpose registers, two supervisor stack pointers, and eighteen addressing modes. The component is available in hermetically sealed ceramic packages, specifically a 114-pin PGA or 132-pin CQFP, and complies with MIL-STD-883 Class B standards for military applications.

Feature Summary

• Object code compatible with earlier TS68000 microprocessors while providing enhanced support for high-level languages through new addressing modes.
• Features a fast on-chip instruction cache to accelerate instructions and improve bus bandwidth, alongside a co-processor interface for 32-bit peripherals.
• Supports virtual memory and virtual machines with dynamic bus sizing for efficient integration of 8-, 16-, and 32-bit memories.
• Includes a bit field data type to accelerate bit-oriented applications such as video graphics.

Applications

• High-performance embedded systems requiring full 32-bit processing capabilities
• Military and aerospace applications necessitating MIL-STD-883 Class B compliance
• Video graphics and other bit-oriented application environments
• Complex control systems utilizing virtual memory architectures

Procurement Notes

Verify that the specific suffix 'M' corresponds to the required temperature grade and screening level, as the datasheet defines 'M' for -55°C to +125°C operation. Confirm package selection between PGA 114 and CQFP 132 matches the design constraints. Ensure ordering documentation explicitly references MIL-STD-883 Class B or DESC 5962-860320 conformance. Validate that the speed variant aligns with system timing requirements.

Selection Notes

Select this component when a full 32-bit implementation of the TS68000 family is required for high-speed processing. Consider the on-chip cache and pipelined architecture for performance-critical tasks. Evaluate the thermal resistance characteristics against the expected ambient operating conditions. Ensure the system design accommodates the 5V power supply and the specific pinout of the chosen ceramic package.

Part Context

The TS68020 represents the first full 32-bit evolution of the TS68000 family, transitioning from 16-bit origins. It combines CMOS speed and low power with HMOS density. The device integrates approximately 190,000 transistors within a compact die size. It maintains backward compatibility with existing software while introducing expanded instruction sets and new data types for modern computing demands.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Verify functional equivalence with other TS68000 family members if alternative sourcing is necessary.

FAQ

What is the maximum power dissipation at an operating case temperature of 125°C?

The maximum power dissipation (Pdmax) is 1.9 W when the case temperature is maintained at +125°C.

How does the TS68020 support instruction tracing?

It supports instruction tracing via the T0 status bit for every executed instruction and adds the capability to trace only change-of-flow instructions using the T1 status bit.