IDT72V90823J

Overview

The IDT72V90823J is a 3.3V Time Slot Interchange (TSI) digital switch designed for high-density telecommunications applications. It supports non-blocking switching at rates up to 8.192 Mb/s with a capacity of 2,048 x 2,048 channels. The device accepts streams of 2.048, 4.096, or 8.192 Mb/s and features automatic identification of ST-BUS/GCI interfaces. Key capabilities include per-channel variable throughput delay, frame offset delay measurement, and processor mode control compatible with Intel/Motorola CPUs. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Supports non-blocking digital switching with scalable channel capacities from 512x512 to 2048x2048 depending on bit rate
• Provides programmable stream and channel control including input offset delay and high-impedance output management
• Features automatic identification of ST-BUS and GCI interfaces for streamlined integration
• Includes IEEE-1149.1 JTAG test port for enhanced manufacturing and system diagnostics

Applications

• Telecommunications network infrastructure
• Digital cross-connect systems
• Voice and data channel multiplexing
• ST-BUS and GCI interface implementations

Procurement Notes

Verify the specific suffix 'J' against official Renesas/IDT documentation to confirm package type and temperature grade. Ensure compatibility with required 3.3V supply and interface standards. Check for end-of-life status or recommended replacements if current production is discontinued. Confirm lead time and availability through authorized distributors as stock levels vary.

Selection Notes

Select this component when a high-density, non-blocking TSI solution is required for telecom environments. It is suitable for designs needing flexible throughput delay and automatic interface detection. Consider alternative packages like BGA or PQFP if pin count or board space constraints differ from the PLCC option. Verify thermal requirements align with the -40°C to +85°C operating range.

Part Context

The IDT72V90823 belongs to the family of Time Slot Interchange switches originally developed by Integrated Device Technology (IDT), now part of Renesas Electronics. These devices are critical for managing large-scale voice and data traffic in public switched telephone networks and private branch exchanges. The technology enables efficient routing of time-division multiplexed signals without blocking.