IDT79RV4640-133DUG
| Part Description |
MIPS-I Microprocessor IC - 1 Core, 64-Bit 133MHz 128-PQFP (28x28) |
|---|---|
| Quantity | 973 Available (as of October 8, 2026) |
| Product Category | Microprocessors |
|---|---|
| Part Series | IDT79RV4640 |
| Manufacturer | Renesas Electronics Corporation |
| Manufacturing Status | Obsolete |
| Manufacturer Standard Lead Time | Contact Us |
| Datasheet |
Specifications & Environmental
| Core Processor | MIPS-I | Device Package | 128-PQFP (28x28) | Mounting Type | Surface Mount | ||
|---|---|---|---|---|---|---|---|
| Number of Cores/Bus Width | 1 Core, 64-Bit | Operating Temperature | 0°C – 85°C | Package / Case | Tray | ||
| Speed | 133MHz | Voltage | 3.3V |
Overview of IDT79RV4640-133DUG – IC MPU 133MHz 128QFP
The IDT79RV4640-133DUG is a 64-bit MIPS-I microprocessor offered in a 128‑PQFP (28×28) surface-mount package and specified for 133 MHz operation. Designed for embedded applications, it delivers 64‑bit integer architecture with on‑chip caches and a 32‑bit system interface to simplify integration into 32‑bit systems.
The device targets performance‑hungry embedded markets such as networking, office automation and consumer multimedia, providing a balance of processing capability, on‑chip integration and power management features for compact system designs.
Key Features
- Core MIPS‑I 64‑bit CPU architecture with a single 64‑bit core operating at 133 MHz, suitable for embedded integer workloads.
- Memory & Cache Separate on‑chip caches with 8KB instruction cache and 8KB data cache for reduced external memory traffic and improved determinism.
- System Interface 32‑bit bus interface to ease integration into 32‑bit system designs while leveraging 64‑bit internal processing.
- Power & Voltage 3.3 V I/O supply and low‑power features including active power management and standby mode to reduce power in inactive units.
- Package & Mounting 128‑PQFP (28×28) tray packaged, surface‑mount device for compact board designs and standard assembly flows.
- Operating Range & Qualification Consumer‑grade qualification with an operating temperature range of 0 °C to 70 °C.
- Real‑time Support Features such as cache locking and fast interrupt decode to support deterministic response in embedded systems.
- Standards & Compliance RoHS‑compliant construction for environmental and regulatory compliance in assembled products.
Typical Applications
- Networking and Routing Equipment Packet processing and control-plane tasks in routers and switches where a 64‑bit embedded CPU with cache support improves throughput and responsiveness.
- Office Automation Control and processing for printers, scanners and multifunction devices requiring a compact processor with on‑chip caches and low‑power modes.
- Consumer Multimedia Systems Embedded control and media handling in consumer devices and game systems that benefit from 64‑bit registers and a dedicated embedded microprocessor core.
Unique Advantages
- 64‑Bit Processing in Embedded Form Delivers 64‑bit integer operations and registers while interfacing to 32‑bit systems, enabling higher internal precision without full system redesign.
- On‑Chip Cache for Deterministic Performance Dedicated 8KB instruction and 8KB data caches reduce external memory dependence and support cache locking for predictable latency.
- Integration That Simplifies Design The combination of a single integrated CPU core, caches and a standard 128‑PQFP package reduces BOM complexity and PCB area.
- Power Management Active power management and standby capability help lower system power consumption by powering down inactive units.
- Consumer‑Grade Availability Qualified for 0 °C to 70 °C operation and supplied RoHS‑compliant, suitable for a wide range of commercial embedded products.
Why Choose IDT79RV4640-133DUG?
The IDT79RV4640-133DUG positions a 64‑bit MIPS‑I core in a compact, surface‑mount 128‑PQFP package optimized for embedded designs that need substantive integer performance, on‑chip caching and practical power features. Its 133 MHz operating point and 3.3 V I/O make it a straightforward fit for a broad set of 32‑bit system architectures seeking the benefit of 64‑bit internal processing.
This part is well suited to engineers and procurement teams building networking, office automation or consumer multimedia products who require a balance of performance, integration and predictable behavior. The combination of on‑chip caches, cache locking and power management supports scalable, reliable designs with clear upgrade paths within the same processor family.
Request a quote or submit an inquiry today to get pricing and availability for the IDT79RV4640-133DUG and integrate a 64‑bit embedded MPU into your next design.

Date Founded: 2002
Headquarters: Koto City, Tokyo, Japan
Employees: 21,000+
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