TS68020VR20

Overview

The TS68020VR20 is a high-performance 32-bit microprocessor from the TS68000 family, manufactured using HCMOS technology. It features a 32-bit data bus and address bus with an on-chip instruction cache to improve performance. The device supports virtual memory and includes a co-processor interface for floating-point operations. It operates at a maximum clock frequency of 20 MHz with a 5.0 VDC power supply. The component is housed in a 114-pin Ceramic Pin Grid Array (PGA) package and is rated for an operating temperature range of -55°C to +125°C.

Feature Summary

• Full 32-bit implementation with 32-bit registers and data paths
• On-chip instruction cache for improved bus bandwidth
• Co-processor interface for companion 32-bit peripherals
• Support for virtual memory and virtual machine environments

Applications

• High-level language structures requiring enhanced addressing modes
• Bit-oriented applications such as video graphics
• Systems utilizing external floating-point co-processors
• Virtual memory and virtual machine implementations

Procurement Notes

Verify that the 'V' suffix corresponds to the specified commercial temperature range (-40°C to +85°C) if required, although datasheet specifications often list the full military range. Confirm the 'R' suffix indicates the specific PGA114 ceramic package variant. Ensure compliance with MIL-STD-883 Class B screening requirements if applicable to the procurement specification.

Selection Notes

Select this processor when a full 32-bit architecture is needed while maintaining object code compatibility with earlier 16-bit processors. Consider the integrated cache for performance gains and the co-processor interface for specialized arithmetic tasks. Verify that the system design accommodates the asynchronous bus timing and power dissipation characteristics defined in the electrical specifications.

Part Context

The TS68020 represents the evolution of the TS68000 family from 16-bit to full 32-bit processing. It combines CMOS speed and low power with HMOS density. The device utilizes approximately 190,000 transistors and offers pipelined architecture for internal parallelism. It serves as a robust solution for complex embedded control applications requiring high throughput and extensive addressing capabilities.

Replacement Considerations

Compatible variants include the TS68020MF series (CQFP package) and other speed grades within the TS68020 family. Substitutes must match the pinout and voltage requirements. Verify that any replacement maintains the necessary MIL-STD-883 quality level if used in defense or aerospace contexts.