IDT79R3041-25PFG

The IDT79R3041-25PFG is a single-core, 32-bit MIPS-I microprocessor in a 100-TQFP (14×14 mm) surface-mount package from Renesas. Designed for low-cost embedded and consumer systems, it provides a compact, integrated CPU core and peripheral support suited to control, interface and boot-from-PROM applications.

With a 25 MHz core clock and on-chip peripherals and buffers, the device delivers efficient integer processing and a simplified board-level design for cost-sensitive commercial temperature range products (0 °C to 70 °C).

Key Features

• Core Architecture MIPS-I 32-bit single-core processor running at 25 MHz, offering predictable integer performance for embedded control tasks.
• On-Chip Memory Includes 2 KB instruction cache and 512 B data cache to reduce external memory bandwidth and improve code execution efficiency.
• Integrated Processing Units On-chip multiply/divide unit, ALU and shifter provide core arithmetic and logic functions without external coprocessors.
• Bus and Boot Flexibility Programmable port width support for 8-, 16- and 32-bit memory sub-regions and programmable bus timing options; supports boot from 8-, 16- or 32-bit PROMs.
• On-Chip Buffers and DMA 4-deep write buffer and 4-word read buffer reduce memory stalls; integrated DMA arbiter supports efficient peripheral transfers.
• System Timers and Control Includes on-chip 24-bit timer and bus interface registers for system control and timing functions.
• Package and Mounting 100-TQFP (14×14 mm) surface-mount package supplied in tray for automated assembly.
• Power and Reliability 5 V I/O voltage specification and commercial operating temperature range of 0 °C to 70 °C; RoHS compliant.
• Software and Ecosystem Series-level software support includes optimizing compilers, real-time operating systems and debug/monitor tools.

Typical Applications

• Consumer Embedded Systems Compact 32-bit processing for consumer devices where cost and board area are constrained.
• Low-Cost Control Systems Suitable for control and interface tasks that benefit from on-chip timers, DMA arbitration and programmable bus interfaces.
• PROM-Boot Designs Direct boot capability from 8-, 16- or 32-bit PROMs simplifies firmware storage and startup in ROM-based systems.
• Compact Board-Level Solutions 100-TQFP packaging and on-chip caches/buffers reduce the need for external memory and discrete logic, streamlining BOM for space-constrained designs.

Unique Advantages

• Highly integrated RISController family design: On-chip CPU, caches, multiply/divide unit, DMA arbiter and timers reduce external components and simplify system design.
• Flexible memory interface: Programmable port widths (8/16/32-bit) and timing controls allow adapting to a range of memory and peripheral configurations.
• Reduced memory stalls: 4-deep write buffer and 4-word read buffer cut write/read latencies for smoother data throughput.
• Compact SMT package: 100-TQFP (14×14 mm) surface-mount footprint supports automated manufacturing and compact PCBs.
• Commercial-grade and RoHS compliant: 0 °C to 70 °C operating range and RoHS compliance align with consumer-market regulatory and reliability expectations.
• Established software support: Series-level toolchain and debug resources simplify development and shorten time-to-market.

Why Choose IDT79R3041-25PFG?

The IDT79R3041-25PFG combines a MIPS-I 32-bit core with on-chip caches, buffers, DMA arbitration and programmable bus features to deliver a compact, cost-sensitive solution for embedded and consumer systems. Its 25 MHz operating point, 5 V I/O compatibility and 100-TQFP package make it a practical choice for designs that prioritize reduced BOM, board area and straightforward PROM-based boot options.

As part of the RISController family, the device benefits from series-level software and pin/software compatibility across related parts, providing a clear upgrade path and ecosystem support for product development and lifecycle continuity.

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