IDT79R4700-100DP

Microprocessors Overview

The IDT79R4700-100DP is a 64-bit RISC microprocessor based on the MIPS-III architecture, manufactured by Renesas Electronics Corporation. It features a simple 5-stage pipeline and operates at a frequency of 100MHz. The device includes a 16KB instruction cache and a 16KB data cache, both two-way set associative. It supports 64-bit integer and floating-point operations with a 64GB physical address space. The processor utilizes a flexible MMU with a fully associative Joint TLB mapping 96 virtual pages. Power supply options include 3.3V for the RV variant and 5V for the R variant. It is available in a 208-pin QFP package.

Microprocessors Feature Summary

• Implements the MIPS-III instruction set architecture with upward software compatibility to earlier generations.
• Integrates a complete floating-point co-processor supporting IEEE Standard 754 arithmetic operations.
• Features a high-level integration with on-chip caches and a flexible Memory Management Unit.
• Supports dynamic power management including a standby mode to reduce internal power consumption.

Microprocessors Applications

• LAN switches
• Routers
• Color printers

Microprocessors Procurement Notes

Verify the specific voltage requirement (3.3V or 5V) corresponding to the suffix before procurement, as the datasheet distinguishes between RV and R parts. Confirm the package type matches the design requirements, specifically the 208-pin QFP configuration. Ensure that the system interface timing aligns with the non-overlapping bus protocol described in the hardware manual. Check for any legacy component status updates from Renesas Electronics Corporation.

Microprocessors Selection Notes

Select this processor when a 64-bit RISC solution compatible with the MIPS Open Architecture is required. It is suitable for embedded systems needing higher computational power than typical 32-bit processors. Consider the thermal properties and airflow conditions if operating near the upper temperature limits. Verify software toolchain support for the IDT79R3000 family compatibility.

Microprocessors Part Context

The IDT79R4700 belongs to the R4700 processor family, which is software and pin-compatible with the 40XX Processor Family. It is upwardly compatible with the IDT79R3000 microprocessor family. The device is designed for high-performance computing applications requiring significant data movement bandwidth. Integrated Device Technology was acquired by Renesas Electronics Corporation.

Microprocessors Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.