82V2048DAG

Overview

The Renesas Electronics 82V2048DAG is an octal T1/E1 Line Interface Unit (LIU) designed for short-haul telecommunications applications. It operates within a supply voltage range of 3.13 V to 3.47 V, with a nominal working voltage of 3.3 V and a typical operating current of 55 mA. The device supports both parallel and serial interface types and is housed in a 144-lead TQFP package suitable for surface mount technology. It functions reliably across an industrial temperature range from -40°C to +85°C. This component integrates eight line interface channels into a single integrated circuit.

Feature Summary

• Integrates eight independent line interface units for simultaneous T1 or E1 signal processing
• Supports flexible system integration through selectable parallel and serial interface modes
• Designed specifically for short-haul transmission environments requiring compact form factors

Applications

• T1 and E1 short-haul line interface systems
• Telecommunications network equipment requiring multi-channel LIU integration
• Digital subscriber line access multiplexers (DSLAMs)

Procurement Notes

This component has reached end-of-life status according to manufacturer discontinuance notifications. Availability is restricted, and the product may no longer be actively manufactured or stocked by primary distributors. Verification of current stock levels and alternative sourcing options is required before procurement planning. Designers should assess long-term supply chain risks associated with obsolete components.

Selection Notes

Engineers selecting this part must account for its discontinued status and limited availability. The 144-pin TQFP package requires appropriate PCB layout considerations for thermal management and signal integrity. Verify that the 3.3 V power supply constraints align with system design specifications. Consider the humidity sensitivity classification during storage and handling procedures to prevent moisture-induced damage.

Part Context

The 82V2048DAG belongs to the 82V2048 series of telecom interface ICs originally developed by Integrated Device Technology (IDT), which was later acquired by Renesas Electronics. The part number IDT82V2048DAG serves as an alias for this component. It represents a specialized solution for high-density line interface requirements in legacy and modern telecommunications infrastructure.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the end-of-life status, direct pin-to-pin replacements may not exist. Engineers should consult official Renesas replacement guides or evaluate newer generation LIU products from the same manufacturer family.