79RC32H434-266BC

The 79RC32H434-266BC is a single-core, 32-bit MIPS32 microprocessor in Renesas' 79RC32H434 series, running at 266 MHz and supplied in a 256-CABGA (17×17) surface-mount package. Designed as an integrated communications-class processor, it combines a high-performance CPU core with on-chip peripherals and system controllers to streamline embedded system designs.

Targeted at consumer-grade embedded applications, the device delivers a balance of processing performance, integrated I/O and memory interfaces, and a compact BGA footprint to simplify board-level integration and reduce overall system BOM.

Key Features

• Core and Performance Single MIPS32 32-bit core running at 266 MHz with support for hardware debug via an ICE interface compatible with EJTAG v2.5.
• On-chip Caches and MMU 8 KB instruction and 8 KB data caches (4-way set associative) with cache line locking and non-blocking prefetches; includes a 16 dual-entry JTLB, 3-entry instruction TLB and 3-entry data TLB for virtual memory support.
• Multiply Throughput Deterministic multiply capability: maximum issue rate of one 32×16 multiply per clock and one 32×32 multiply every other clock.
• High-efficiency DMA Integrated DMA engine designed to move data between on-chip I/O peripherals and main memory with minimal CPU intervention, improving data throughput and lowering CPU load.
• PCI Interface 32-bit PCI revision 2.2 compliant controller supporting host or satellite operation, master/target modes, and a PCI clock range compatible with standard PCI implementations.
• Ethernet Connectivity 10/100 Mb/s Ethernet controller compliant with ISO/IEC 8802-3:1996, supporting MII or RMII PHY interfaces and hardware multicast filtering.
• DDR Memory Controller On-chip DDR SDRAM controller supporting up to 256 MB of DDR memory, 16-bit data port, automatic refresh generation and compatibility with x8/x16 DDR devices.
• Peripheral Set Integrated peripherals include UART (16550-compatible), SPI, I2C controller, GPIO, timers/counters and a programmable memory & peripheral controller with glueless interfacing to SRAM, Flash and ROM.
• Package, Power and Temperature 256-CABGA (17×17) surface-mount package, 3.3 V I/O, RoHS compliant and qualified for consumer operating range (0 °C to 70 °C).

Typical Applications

• Embedded Communications Ideal for networked embedded controllers and communications modules that require integrated Ethernet and PCI interfaces with DMA-assisted data movement.
• Industrial Gateway and Interface Controllers Used where protocol bridging, peripheral aggregation and DDR-backed buffering are required in a compact BGA form factor.
• Peripheral and I/O Aggregation Suited for designs needing UART, SPI, I2C and GPIO integration alongside a capable CPU to manage data paths and control logic.
• Consumer Embedded Systems Applicable in consumer-grade devices requiring a 32-bit processor with Ethernet connectivity and flexible memory interfacing within a moderate temperature range.

Unique Advantages

• Highly Integrated Communications Engine: Combines CPU, DMA, Ethernet and PCI controllers on-chip to reduce external components and simplify board design.
• Deterministic Data Handling: Dedicated DMA and FIFO-based Ethernet transmit/receive paths minimize CPU intervention for high-throughput I/O tasks.
• Flexible Memory Interface: Built-in DDR controller with support for multiple device sizes and automatic refresh reduces external memory management complexity.
• Debug and Development Support: ICE interface compatible with EJTAG v2.5 and hardware/software breakpoint support to aid development and bring-up.
• Compact Surface-Mount Package: 256-CABGA (17×17) package enables high-density board integration while maintaining a broad peripheral set.
• Standards-Based Interfaces: PCI 2.2 and 10/100 Ethernet with MII/RMII PHY support enable interoperability with common network and host subsystems.

Why Choose 79RC32H434-266BC?

The 79RC32H434-266BC positions itself as a practical choice for embedded designers who need a balanced combination of processing performance, integrated communications and memory interfaces, and a compact BGA package. Its MIPS32 core, on-chip DMA, Ethernet and PCI support reduce system complexity and accelerate time-to-market.

Designed for consumer-grade embedded systems, this device is suitable for applications that benefit from integrated peripherals and memory controllers, providing a scalable foundation for networked and I/O-intensive designs while keeping board-level BOM and integration effort low.

Request a quote or submit an inquiry to discuss availability, volume pricing, or to obtain technical documentation and support for integrating the 79RC32H434-266BC into your design.