Renesas IDT79RC32V364-133DAG

Overview

IDT79RC32V364-133DAG from Integrated Device Technology, Inc. is a 32-bit embedded microprocessor based on the RISCore32300 CPU core, implementing the MIPS 32 ISA with DSP extensions. It operates at 133 MHz, delivers 175 Dhrystone MIPS, integrates 8 kB instruction and 2 kB data caches (2-way set associative), supports RC5000-compatible MMU with 32-page TLB, and targets cost-sensitive communications and xDSL equipment.

For engineers reviewing the IDT79RC32V364-133DAG datasheet, IDT79RC32V364-133DAG pinout, IDT79RC32V364-133DAG application, or IDT79RC32V364-133DAG equivalent, key selection considerations include its 133 MHz clock speed, 3.3 V core/I/O operation, industrial temperature range (–40°C to +85°C), 66 million MAC/sec DSP capability, and enhanced JTAG debug interface for in-circuit emulation.

Technical Context

The IDT79RC32V364-133DAG implements a scalar 5-stage pipeline optimized for low branch/load latency and high-frequency operation. Its RISCore32300 core executes MIPS 32 instructions with architectural enhancements including conditional move, prefetch (PREF), MAD/MSUB, and CLZ/CLO instructions - all directly supporting integer DSP workloads.

It features a fully associative 16-entry TLB mapping up to 512 MB of memory with programmable page sizes (4 kB–16 MB), per-page cache coherency attributes (uncached/write-through/write-back), and deterministic real-time access via TLB locking. The system interface provides a 32-bit multiplexed A/D bus with programmable port width (8/16/32-bit), burst support, and integrated DMA arbiter.

Key Specifications

Pinout & Package

Package: 144-pin TQFP (Thin Quad Flat Package), 20 mm × 20 mm, 0.5 mm pitch, lead-free compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded microprocessor applications.

Compared with IDT79RC32V364-100DAG, the IDT79RC32V364-133DAG delivers 33% higher clock rate and 32% more MAC throughput - critical for multi-channel VoIP or vectoring-capable DSL. Compared with IDT79RC32V364-133DBG, the DAG variant offers identical functionality in a smaller footprint and lower assembly cost, though with reduced thermal margin and fewer I/Os.

Availability

IDT79RC32V364-133DAG is available at Aetrix Electronics and suitable for DSL modem baseband processing, xDSL line card control, consumer VoIP gateway development, and industrial protocol converter designs requiring stable component supply across extended product lifecycles.

Supply support for IDT79RC32V364-133DAG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Integrated Device Technology, Inc. (IDT) was a fabless semiconductor company specializing in high-performance timing, memory interface, RF, and embedded processor solutions before its acquisition by Renesas Electronics in 2019.

The IDT79RC32V364-133DAG belongs to the RISController™ family - designed specifically for cost-sensitive, real-time embedded systems requiring MIPS software compatibility, integrated DSP acceleration, and industrial-grade reliability in communications infrastructure.

FAQ

What is the maximum operating frequency of the IDT79RC32V364-133DAG?

The IDT79RC32V364-133DAG is rated for operation at 133 MHz - this is its guaranteed maximum clock frequency under industrial temperature conditions (–40°C to +85°C) and 3.3 V ±5% supply. It achieves 175 Dhrystone MIPS at this speed, with pipeline timing validated across process corners and voltage extremes per the original IDT datasheet DSC 4510.

Does the IDT79RC32V364-133DAG support cache locking, and how is it implemented?

Yes, the IDT79RC32V364-133DAG supports cache locking at the individual cache line level for both instruction and data caches. Locking is controlled via CP0 registers and allows critical code or data blocks to remain resident in cache, eliminating worst-case miss penalties. This feature is essential for hard real-time applications such as DSL line initialization where deterministic interrupt latency is required - and is explicitly documented in the "Cache Memory" section of the IDT79RC32V364-133DAG datasheet.

What debug capabilities does the IDT79RC32V364-133DAG provide beyond standard JTAG?

The IDT79RC32V364-133DAG implements an Enhanced JTAG interface with two operational modes: Run-Time Mode (standard IEEE 1149.1 debugging) and Real-Time Mode, which outputs non-sequential program counter values on dedicated PCST[2:0] pins synchronized to the internal clock. This enables cycle-accurate instruction trace without requiring expensive external logic analyzers - a capability confirmed in the "Debug Support" section of the official IDT documentation for the IDT79RC32V364-133DAG.

Is the IDT79RC32V364-133DAG pin-compatible with other members of the RC32364 family?

Yes, the IDT79RC32V364-133DAG shares identical pinout and electrical characteristics with other speed grades in the same package variant (e.g., IDT79RC32V364-100DAG), as confirmed by the "Pin Description Table" in the IDT79RC32V364-133DAG datasheet. However, it is not pin-compatible with the 256-pin PBGA variant (IDT79RC32V364-133DBG), which uses a different footprint and signal assignment despite identical functionality.

What power supply requirements does the IDT79RC32V364-133DAG have?

The IDT79RC32V364-133DAG requires a single 3.3 V ±5% supply for both core and I/O operation - no separate core voltage rail is needed. Typical power consumption is 700 mW at 133 MHz and full load; standby mode draws less than 300 mW. These specifications are measured under industrial temperature conditions and are fully characterized in the "Power Consumption" section of the IDT79RC32V364-133DAG datasheet DSC 4510.