IDT79R3041-33PFG

Microprocessors Overview

The IDT79R3041-33PFG is a 32-bit RISC microprocessor operating at 33MHz with a 5V supply. It features a 2KB instruction cache and a 512B data cache, both direct-mapped. The device includes an on-chip multiply/divide unit, a 4-deep write buffer, and a 4-deep read buffer. It supports programmable bus interface timing and port widths (8-, 16-, and 32-bit). The processor utilizes a double-frequency clock input and operates within the commercial temperature range.

Microprocessors Feature Summary

• Integrates a MIPS-compatible 32-bit RISC CPU core with an on-chip integer multiply/divide unit for parallel execution.
• Includes configurable on-chip caches consisting of 2KB instruction cache and 512B data cache to reduce external memory dependencies.
• Features a flexible bus interface supporting programmable port widths and timing adjustments for simplified system design.
• Incorporates internal buffers including a 4-deep write buffer and DMA arbiter to manage data flow and minimize stalls.

Microprocessors Applications

• Low-cost embedded processing systems
• Laser printer engines and PDL interpreters
• Industrial control applications requiring MIPS architecture compatibility

Microprocessors Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type and speed grade. Confirm compliance requirements as this component may not be RoHS compliant. Ensure the procurement source provides valid traceability documentation for this integrated circuit.

Microprocessors Selection Notes

Select this component when a pin-compatible MIPS RISC solution is needed with integrated caching to lower system costs. Consider the 84-pin PLCC package for standard mounting. Evaluate the need for programmable bus timing if interfacing with slower memory devices or FPGAs.

Microprocessors Part Context

This part belongs to the IDT RISController family, which integrates high-performance 32-bit RISC processing into cost-sensitive applications. The family shares software and pin compatibility across members like the R3051 and R3081, allowing for scalable system upgrades without redesigning the hardware platform.

Microprocessors Replacement Considerations

Pin-compatible alternatives within the RISController family include the IDT79R3051 and IDT79R3052. These variants offer larger cache sizes but maintain functional compatibility with the R3041 instruction set and physical footprint.

Microprocessors FAQ

Does the IDT79R3041 include a Memory Management Unit (MMU)?

No, the IDT79R3041 does not include an on-chip MMU or TLB. It relies on the System Control Co-processor for basic address mapping and exception handling.

What is the maximum performance rating of the IDT79R3041?

The device achieves 20 MIPS performance at 25MHz when operating out of cache. At 33MHz, it sustains higher throughput based on cache hit rates.