IDT7290820J

Overview

The IDT7290820J is a non-blocking digital time slot interchange switch manufactured by Renesas Electronics Corporation. It provides switching capacity of 2,048 x 2,048 channels at a serial bit rate of 8.192 Mb/s. The device supports variable or constant throughput delay per channel and features automatic identification of ST-BUS/GCI interfaces. It accepts data streams of 2.048 Mb/s, 4.096 Mb/s, or 8.192 Mb/s. The component operates within a temperature range of -40°C to +85°C and utilizes a 5V power supply.

Feature Summary

• Non-blocking digital switching architecture supporting high-capacity channel interconnection
• Automatic interface identification for ST-BUS and GCI protocols
• Programmable per-channel processor mode control compatible with Intel/Motorola CPUs
• Integrated IEEE-1149.1 (JTAG) test port for boundary scan verification

Applications

• Telecommunications network infrastructure
• Digital time slot interchange systems
• Multi-chip switch configurations for voice and data transport

Procurement Notes

Verify the specific suffix 'J' against official Renesas documentation to confirm package type and lead finish specifications. Ensure compatibility with required operating voltage and environmental conditions before procurement. Confirm availability status as legacy components may have limited production runs.

Selection Notes

Select this component for applications requiring non-blocking digital switching at standard TDM rates. Consider the 2,048 x 2,048 channel capacity and 8.192 Mb/s bit rate requirements. Evaluate the need for automatic ST-BUS/GCI identification and JTAG support in the system design.

Part Context

The IDT7290820 series belongs to Renesas's portfolio of digital communication switches. These devices are designed for high-performance telecommunications environments, offering flexible stream management and precise frame delay offset programming for complex multi-chip switch architectures.

Replacement Considerations

Consult official Renesas documentation for confirmed substitute part numbers. Verify pinout and functional compatibility if considering alternative models from the same family or different manufacturers.