This document describes the features and characteristics of IDT's products, including high-performance 64-bit microprocessor, single/double precision floating-point unit, high-speed caches, and flexible bus interface.
The IDT RC64474 and RC64475 are high-performance 64-bit microprocessors based on the RISCore4000 core, designed for applications requiring high bandwidth and real-time response. These processors implement the MIPS-III Instruction Set Architecture (ISA) and feature a single-cycle ALU with an autonomous multiply/divide unit.
| Architecture | 64-bit microprocessor, based on RISCore4000 |
|---|---|
| Performance (MIPS) | 330 Dhrystone MIPS at 250 MHz |
| Floating Point Performance | 125 peak MFLOP/s at 250 MHz |
| Instruction Cache Size | 16KB two-way set associative |
| Data Cache Size | 16KB two-way set associative |
| External Bus Width (RC64474) | 32-bit |
| External Bus Width (RC64475) | 64-bit |
| Operating Voltage | 3.3V core with 3.3V VO |
The processors implement the MIPS-III Instruction Set Architecture (ISA).
Yes, the processors offer a direct migration path through full pin and socket compatibility.
The instruction cache provides a peak instruction bandwidth of 1000MB/sec at 250MHz.