IDT79RV4640-267DU

The IDT79RV4640-267DU is a 64-bit MIPS-I embedded microprocessor running at 267 MHz, offered in a 128-pin PQFP (28×28 mm) surface-mount package. Designed for performance-hungry embedded applications, it delivers integrated CPU and cache resources with DSP and floating-point capability for networking, office automation, and consumer multimedia systems.

With a 3.3 V I/O class (RV designation), RoHS compliance, and consumer qualification, the device balances high-performance integer and floating-point throughput with on-chip cache and power-management features for compact embedded designs.

Key Features

• Core – MIPS-I architecture 64-bit CPU core operating at 267 MHz with 64-bit registers and 64-bit ALU for native 64-bit integer operations.
• Performance – High-performance integer and DSP capability including 133.5 million integer multiply-accumulate operations per second at 267 MHz and approximately 89 MFlops single-precision floating-point performance at 267 MHz.
• Memory and Cache – Separate on-chip 8 KB instruction cache and 8 KB data cache; 2-way set-associative architecture with write-back and write-through support, cache locking, and reported internal cache bandwidth over 3200 MB/s.
• System Interface – 32-bit synchronized system interface supporting multi-master operation and a bus interface that brings 64-bit processing to 32-bit systems; system interface rated to 125 MHz with up to 500 MB/s external bandwidth.
• Power Management – Integrated low-power features including active power management and standby mode to power down inactive units.
• Package and Mounting – 128-PQFP (28×28 mm) supplier device package, surface-mount mounting; device shipped in tray format.
• Operating Conditions & Compliance – Operating temperature range 0 °C to 70 °C, RoHS compliant, consumer qualification; RV suffix indicates 3.3 V I/O.

Typical Applications

• Internetworking Equipment – Routers and switches leveraging integer and DSP throughput for packet processing and forwarding.
• Office Automation – Printers and scanners requiring embedded control and data handling with on-chip caches for responsive operation.
• Consumer Multimedia Systems – Game systems and multimedia devices that benefit from combined integer DSP and floating-point performance.

Unique Advantages

• 64‑Bit Processing in a 32‑Bit System – 64-bit core and registers with a 32-bit external bus interface allow leveraging 64-bit performance while maintaining 32-bit system cost and compatibility.
• Integrated Cache for Deterministic Performance – Separate instruction and data caches with cache locking and high internal bandwidth help achieve predictable, high-throughput operation for embedded workloads.
• DSP and FPU Capability – High-rate integer multiply-accumulate and single-precision floating-point throughput provide software-accessible DSP acceleration without external co-processors.
• Low-Power Modes – Active power management and standby modes help reduce power in idle or partially active systems, suitable for energy-conscious embedded designs.
• System-Level Interfacing – Synchronized system interface and compatibility with IDT RC4000 family bus timing (system interface to 125 MHz) simplify integration into established embedded platforms.

Why Choose IDT79RV4640-267DU?

The IDT79RV4640-267DU combines a 64-bit MIPS-I core running at 267 MHz with on-chip instruction and data caches, DSP and floating-point capability, and power-management features to address performance-focused embedded applications. Its 3.3 V I/O class and PQFP surface-mount package make it suitable for compact system designs that require both integer and floating-point throughput.

Ideal for designers of networking equipment, office automation systems, and consumer multimedia products, this device offers a balanced mix of compute performance, cache-driven responsiveness, and system interface flexibility for scalable embedded designs.

Request a quote or submit a pricing inquiry to receive availability and lead-time information for the IDT79RV4640-267DU.