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Renesas IDT79RC32V364-100DAG
- Part No.:
- IDT79RC32V364-100DAG
- Manufacturer:
- Renesas
- Category:
- Microprocessors
- Package:
- 144-LQFP
- Datasheet:
-
IDT79RC32V364-100DAG.pdf
- Description:
- IC MPU 100MHZ 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,677
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Product details
Overview
IDT79RC32V364-100DAG from Integrated Device Technology, Inc. is a 32-bit RISC microprocessor based on the RISCore32300 CPU core, implementing the MIPS 32 ISA with DSP extensions. It operates at 100 MHz, delivers 175 Dhrystone MIPS, integrates 8 kB instruction and 2 kB data caches (2-way set associative), supports 3.3 V core/I/O, and targets embedded communications and xDSL equipment.
For engineers reviewing the IDT79RC32V364-100DAG datasheet, IDT79RC32V364-100DAG pinout, IDT79RC32V364-100DAG application, or IDT79RC32V364-100DAG equivalent, key selection criteria include its 100 MHz clock rating, RC4000-compatible MMU with 32-page TLB, programmable bus width (8/16/32-bit), enhanced JTAG debug interface, and industrial temperature range support.
Technical Context
The IDT79RC32V364-100DAG implements a scalar 5-stage pipeline optimized for low branch/load latency and deterministic real-time response. Its integer execution unit supports MIPS IV conditional move, PREF, MAD/MSUB, CLO/CLZ instructions, and atomic MUL with bypass to register file-enabling 66 million MAC operations per second at 100 MHz.
Virtual-to-physical address translation uses a 16-entry fully associative TLB mapping up to 32 pages (4 kB–16 MB page sizes), with per-page cache coherency attributes (uncached/write-through/write-back). The system interface features multiplexed AD(31:4) bus, ALE/ADS*, BE*[3:0], I/D*, RD*/WR*, and DMA arbitration via BusReq*/BusGnt*.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Clock Frequency | 100 MHz - fixed timing reference for pipeline, cache, and bus interface synchronization |
| Dhrystone MIPS | 175 DMIPS - measured integer performance benchmark at 100 MHz, indicating sustained control-plane throughput |
| Instruction Cache | 8 kB, 2-way set associative, virtually indexed/physically tagged - enables single-cycle fetch with parallel TLB lookup |
| Data Cache | 2 kB, 2-way set associative, write-back/write-through configurable per page - reduces external memory traffic for stack and local variables |
| MMU / TLB | 32-page virtual address space mapped by 16-entry TLB with variable page size (4 kB–16 MB) - supports real-time deterministic memory access and frame buffer optimization |
| Power Consumption | Typical 700 mW @ 100 MHz - achieved via active power management and static design enabling WAIT instruction-based idle reduction |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without forced airflow or heatsinking |
| I/O Voltage | 3.3 V - compatible with standard low-voltage peripheral interfaces and SDRAM controllers |
Pinout & Package
Package: 144-pin TQFP (Thin Quad Flat Package), 20 mm × 20 mm, 0.5 mm pitch, lead-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AD(31:4) | Multiplexed Address/Data Bus | High-order 28 bits shared between address and data phases; requires external latch controlled by ALE |
| ALE | Address Latch Enable | Edge-triggered strobe synchronizing external latch capture of AD(31:4) address value |
| ADS* | Address Strobe | Active-low signal marking start of bus transaction; inverse of ALE, used for cycle timing alignment |
| BE*[3:0] | Byte Enables | Selects active byte lanes during 32-bit transfers; encodes port width (8/16/32-bit) and controls burst alignment |
| I/D* | Instruction/Data Indicator | Active-high = instruction fetch; active-low = data access - enables cache partitioning and bus arbitration prioritization |
| Rd*/Wr* | Read/Write Control | Separate active-low signals defining transfer direction; decoupled from DT/R* to simplify memory controller logic |
| BusReq*/BusGnt* | DMA Arbitration Interface | Asynchronous request/grant handshake allowing external masters (e.g., SDRAM controller) to seize bus without CPU intervention |
| TCK/TDI/TDO | JTAG Test Interface | IEEE 1149.1-compliant boundary-scan clock/data paths supporting in-circuit emulation and real-time trace via PCST[2:0] |
Key Features
| Feature | Design Value |
|---|---|
| MIPS 32 ISA with DSP extensions | Native support for MAD/MSUB, CLO/CLZ, and prefetch hints - accelerates telecom protocol stacks and audio codecs without coprocessor overhead |
| Per-page cache coherency control | TLB attribute bits configure write-back, write-through, or uncached behavior per virtual page - optimizes bandwidth for DMA buffers vs. stack vs. code regions |
| Cache locking with per-line resolution | Enables deterministic worst-case execution time (WCET) for real-time OS kernels and interrupt handlers by preventing cache line eviction |
| Enhanced JTAG with Real-Time Mode | PCST[2:0] status pins output internal program counter during live execution - enables non-intrusive trace without halting CPU or consuming bandwidth |
| Programmable bus turnaround and port width | Width[1:0] and BTA registers allow direct interfacing to 8-bit flash, 16-bit SRAM, and 32-bit SDRAM - eliminates glue logic in cost-sensitive designs |
| RC4000-compatible MMU | Software-transparent migration path from legacy IDT processors - preserves existing kernel and bootloader investments |
Applications
| DSL Modem Baseband Processing | xDSL Line Card Control |
|---|---|
Use Scenario: Real-time ADSL/G.lite physical layer processing with concurrent TCP/IP stack and management agent. IC Role / Device Role / Timing Role: Primary integer DSP and control processor executing firmware with deterministic interrupt latency and cache-locked critical sections. Use Value: 66 million MAC/sec at 100 MHz enables multi-channel echo cancellation and trellis coding while maintaining 100+ ms voice call setup latency. | Use Scenario: Centralized line card supervisor managing multiple DSL PHY chips, performing diagnostics, and handling SNMP traps. IC Role / Device Role / Timing Role: Embedded host controller coordinating DMA transfers to/from PHY registers and buffering management packets in on-chip caches. Use Value: 8 kB instruction cache sustains >95% hit rate for interrupt service routines, reducing external memory accesses and jitter in packet scheduling. |
| Industrial Ethernet Gateway | VoIP Terminal Controller |
Use Scenario: Protocol translation between Modbus TCP and fieldbus networks in factory automation systems. IC Role / Device Role / Timing Role: Real-time application processor running Linux RTOS with deterministic TLB-mapped I/O memory regions. Use Value: Variable 4 kB–16 MB TLB page sizes allow single-entry mapping of large I/O buffers and precise isolation of safety-critical firmware segments. | Use Scenario: SIP endpoint managing G.711/G.729 codec, RTP streaming, and keypad/LED UI in residential VoIP phones. IC Role / Device Role / Timing Role: Low-power embedded controller executing dual-threaded firmware with cache-locked audio buffers and interrupt-driven UART/PCM I/O. Use Value: 700 mW typical power at 100 MHz enables fanless operation in compact plastic enclosures while sustaining full-duplex voice processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded RISC microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT79RC32V364-133DAG | 133 MHz clock, 175 DMIPS scaled to 230+ DMIPS, 700 mW → 900 mW typical power, identical pinout and instruction set | Higher computational throughput required for multi-channel VoIP or video analytics; thermal derating needed above 60°C ambient | Select when application demands >20% higher integer performance and board layout accommodates increased power dissipation. |
| MIPS Technologies RM7000A-150BGI | 150 MHz, superscalar dual-issue pipeline, 32 kB I-cache/32 kB D-cache, no integrated MMU (requires external), different pinout and voltage (2.5 V core) | Targeted at high-end networking where cache bandwidth >2 GB/sec and Linux SMP scalability are primary requirements | Choose only if migrating from RM52xx/RM7000 software base; not drop-in compatible due to voltage, pinout, and MMU architecture differences. |
Compared with IDT79RC32V364-100DAG, the -133DAG offers linear performance scaling within identical thermal and footprint constraints, whereas the RM7000A requires PCB redesign, new power delivery, and software porting-making the -100DAG optimal for cost-sensitive, thermally constrained industrial gateways.
Availability
IDT79RC32V364-100DAG is available at Aetrix Electronics and suitable for DSL modem manufacturing, industrial gateway production, and VoIP terminal development requiring stable component supply across extended product lifecycles.
Supply support for IDT79RC32V364-100DAG 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 IDT79RC32V364-100DAG belongs to the RISController™ family, designed specifically for cost-sensitive, real-time embedded applications in communications infrastructure where MIPS software compatibility, low power, and deterministic cache/MMU behavior are essential.
FAQ
What is the maximum operating frequency of the IDT79RC32V364-100DAG?
The IDT79RC32V364-100DAG is rated for operation at 100 MHz. This frequency is guaranteed across the full industrial temperature range (–40°C to +85°C) and 3.3 V ±0.3 V supply, with timing validated per the System Interface Parameters table in the official datasheet. The "100" in the part number explicitly denotes this speed grade.
Does the IDT79RC32V364-100DAG include an integrated memory management unit (MMU)?
Yes, the IDT79RC32V364-100DAG integrates a fully RC4000-compatible MMU with a 16-entry translation lookaside buffer (TLB) supporting 32 virtual pages. It implements variable page sizes (4 kB to 16 MB), per-page cache coherency attributes, and lockable TLB entries-enabling real-time deterministic memory access without external components.
What debug capabilities does the IDT79RC32V364-100DAG provide?
The IDT79RC32V364-100DAG provides an Enhanced JTAG interface compliant with IEEE 1149.1, featuring both Run-Time Mode (standard boundary scan) and Real-Time Mode with PCST[2:0] status pins for non-intrusive program counter tracing. It also includes two CP0 watchpoint registers for address-access exception triggering during firmware debugging.
Is the IDT79RC32V364-100DAG pin-compatible with other members of the RC32364 family?
Yes, the IDT79RC32V364-100DAG shares identical pinout and package (144-pin TQFP) with all speed grades in the RC32364 family, including the -133DAG variant. This allows frequency upgrades via reprogramming of clock configuration registers and replacement of the crystal oscillator, without PCB changes.
What is the power consumption profile of the IDT79RC32V364-100DAG under typical operating conditions?
The IDT79RC32V364-100DAG consumes typical 700 mW at 100 MHz and 3.3 V supply, with standby mode drawing less than 300 mW. Its static design and WAIT instruction support enable dynamic power reduction during idle periods, making it suitable for fanless industrial enclosures with ambient temperatures up to +85°C.
IDT79RC32V364-100DAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- MIPS32
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 100MHz
- Co-Processors/DSP:
- System Control; CP0
- RAM Controllers:
- SDRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-TQFP (20x20)
- Additional Interfaces:
- -
IDT79RC32V364-100DAG FAQ
1.How can I place an order for IDT79RC32V364-100DAG through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT79RC32V364-100DAG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IDT79RC32V364-100DAG reliable?
The price and inventory of IDT79RC32V364-100DAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT79RC32V364-100DAG is usually 5 days.
3.What payment methods are accepted for IDT79RC32V364-100DAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT79RC32V364-100DAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT79RC32V364-100DAG?
IDT79RC32V364-100DAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT79RC32V364-100DAG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IDT79RC32V364-100DAG?
For technical support, including IDT79RC32V364-100DAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT79RC32V364-100DAG requirements.
6.How does Aetrix verify that IDT79RC32V364-100DAG is sourced from the original manufacturer or authorized distributors?
All IDT79RC32V364-100DAG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IDT79RC32V364-100DAG meets industry standards.
7.What is the process for return or replacement of IDT79RC32V364-100DAG?
All IDT79RC32V364-100DAG units undergo pre-shipment inspection (PSI). If there is an issue with IDT79RC32V364-100DAG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IDT79RC32V364-100DAG part is unused and in its original packaging.
Return procedure for IDT79RC32V364-100DAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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