IDT79RC32T355-150DH

Microprocessors Overview

The IDT79RC32T355-150DH is a System-on-Chip microprocessor based on the RC32300 core, implementing an enhanced MIPS-II ISA with DSP instructions. It features a 208-pin PQFP package, operating at up to 180 MHz pipeline frequency and 75 MHz bus frequency. The device integrates a 2.5V core supply and 3.3V I/O supply, supporting big or little endian modes. Key peripherals include a 16-channel DMA controller, two 16550-compatible UARTs, an Ethernet MAC, USB 1.1 device interface, ATM SAR, TDM bus interface, and SDRAM controller.

Microprocessors Feature Summary

• Integrated RC32300 CPU core with MMU and cache locking for real-time performance
• On-chip Ethernet MAC supporting 10/100 Mbps with auto-negotiation
• Configurable ATM SAR supporting UTOPIA Level 1 and Level 2 interfaces
• Flexible memory controller supporting SDRAM, Flash ROM, and SRAM

Microprocessors Applications

• xDSL Residential Gateways
• SOHO Routers
• High-Speed Modems
• Voice Over IP Systems

Microprocessors Procurement Notes

Verify the specific speed grade suffix (e.g., -150) against the manufacturer's datasheet to confirm the maximum operating frequency. Ensure the 208-pin PQFP package dimensions match the target PCB footprint. Confirm power supply requirements for both the 2.5V core and 3.3V I/O domains are met by the system design.

Microprocessors Selection Notes

Select this component for applications requiring high-performance embedded processing with integrated communication interfaces. The inclusion of ATM SAR and Ethernet MAC reduces external component count. Consider the EJTAG interface for debugging needs. Evaluate thermal dissipation capabilities as peak power consumption is under 2.5 W.

Microprocessors Part Context

This part belongs to the IDT 79RC32355 series of Interprise Integrated Communications Processors. It is designed for embedded communications and digital consumer applications, offering a single-chip solution to reduce board real estate and system cost. The RC32300 core provides MIPS-II compatibility with enhanced prefetch and DSP capabilities.

Microprocessors Replacement Considerations

Check for updated speed grades within the 79RC32355 family. Verify pin-to-pin compatibility if substituting with other RC32300-based devices from IDT or Renesas.