79RC32K438-200BB

The 79RC32K438-200BB is a MIPS32-based Interprise™ microprocessor IC with a single 32-bit core running at 200 MHz. Designed for embedded and consumer applications, it integrates on-chip memory controllers, peripheral interfaces and system controllers to support networked and general embedded designs.

Key Features

• Core Architecture  The device uses a MIPS32 32-bit CPU core operating at 200 MHz with support for standard MIPS32 instructions.
• Cache and MMU  On-chip instruction and data caches (16 KB each) with 4-way set associativity and TLB entries for virtual memory support, improving instruction and data throughput.
• Memory Subsystem  Integrated DDR memory controller supporting up to 2 GB DDR SDRAM, two chip selects, and automatic refresh; supports 16-bit or 32-bit data bus widths and multiple DDR device sizes.
• Memory & Peripheral Bus  Glueless interface to SRAM, Flash and ROM with demultiplexed address/data buses, a 16-bit data bus, 26-bit address bus, six chip selects and programmable wait states for flexible peripheral integration.
• DMA and Timers  Ten DMA channels for efficient data movement including PCI and Ethernet channels plus three general-purpose 32-bit counter/timers for system timing and control.
• Connectivity & I/O  Two 10/100 Mbps Ethernet interfaces with MII, two UARTs (16550-compatible), SPI and I2C buses, and a configurable GPIO interface for peripheral control.
• PCI Interface  32-bit PCI compliant controller (revision 2.2) supporting host or target operation and 3.3 V signaling for expansion and peripheral connectivity.
• Debug and Development  Enhanced JTAG and ICE interfaces compatible with EJTAG v2.5, supporting hardware breakpoints, software breakpoints and debug control.
• Package and Power  Supplied in a 416-PBGA (27 × 27 mm) surface-mount package with 3.3 V I/O signaling.
• Operating Conditions and Compliance  Consumer-qualified device with an operating temperature range of 0 °C to 70 °C and RoHS compliance.

Typical Applications

• Embedded Networking  Use the dual 10/100 Mbps Ethernet interfaces and DMA channels for networked appliances and communication endpoints.
• Network Expansion Cards and Platforms  Leverage the 32-bit PCI interface and integrated DDR controller for expansion boards and embedded host platforms.
• Consumer Embedded Systems  Ideal for consumer devices requiring a MIPS32 core, integrated memory controller and a compact 416-PBGA package.
• Peripheral-Intensive Designs  The combination of multiple serial buses, UARTs, GPIO and a flexible peripheral bus supports sensor interfacing and mixed I/O systems.

Unique Advantages

• Highly integrated communication peripherals: On-chip DDR controller, dual Ethernet interfaces and PCI reduce external logic and simplify board design.
• Flexible memory support: DDR controller that supports multiple device sizes and bus widths plus up to 2 GB addressable memory enables scalable memory configurations.
• Efficient data movement: Ten-channel DMA and dedicated Ethernet DMA channels offload transfers from the CPU for improved system efficiency.
• Development and debug readiness: Enhanced JTAG/ICE and hardware/software breakpoints facilitate in-system debugging and development workflows.
• Compact, production-ready package: 416-PBGA (27×27 mm) surface-mount package with 3.3 V I/O and consumer temperature qualification supports compact system form factors.
• Regulatory and environmental compliance: RoHS-compliant construction supports modern manufacturing and environmental requirements.

Why Choose 79RC32K438-200BB?

The 79RC32K438-200BB combines a MIPS32 32-bit core at 200 MHz with extensive on-chip controllers—DDR memory, peripheral bus, PCI, Ethernet and DMA—making it suited to embedded consumer designs that require integrated networking and memory subsystems. Its mix of on-chip features and peripheral interfaces simplifies system architecture and reduces external component count.

This device is appropriate for designers targeting consumer-grade embedded platforms that need a compact PBGA package, 3.3 V I/O compatibility and a documented operating range of 0 °C to 70 °C. The integrated controllers and debug interfaces support efficient development and scaling of board-level designs.

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