82V2048BB8

Overview

The 82V2048BB8 is an octal T1/E1 Line Interface Unit (LIU) manufactured by Renesas Electronics. It integrates eight independent line interface channels within a single package, designed for short-haul telecommunications applications. The device operates at a standard supply voltage of 3.3 V and supports both T1 and E1 signaling standards. It features integrated adaptive equalization and clock data recovery capabilities to maintain signal integrity over copper lines. The component utilizes a PBGA-160 surface-mount package, facilitating high-density board layouts in network infrastructure equipment.

Feature Summary

• Integrates eight independent T1/E1 line interface channels for compact system design
• Supports short-haul transmission requirements with built-in adaptive equalization
• Includes internal clock data recovery circuits for reliable signal synchronization
• Operates on a single 3.3 V power supply for simplified power management

Applications

• Telecommunications access nodes and multiplexers
• Network routers and gateways requiring multiple T1/E1 interfaces
• Wireless base station backhaul connections
• Local area network (LAN) and wide area network (WAN) edge devices

Procurement Notes

Verify the specific suffix 'B8' against official Renesas documentation, as standard listings often reference 'BB' or 'BBG'. Confirm current lifecycle status, as many variants in this series are marked obsolete or end-of-life. Check for moisture sensitivity levels and recommended reflow profiles if handling bare components. Ensure compatibility with existing PCB footprints for the PBGA-160 package before procurement.

Selection Notes

Select this component when eight simultaneous T1 or E1 interfaces are required in a space-constrained design. Compare channel density against dual or quad LIUs to determine if fewer packages can be used. Verify that the short-haul performance specifications meet the copper line length requirements of the target application. Consider thermal dissipation characteristics within the PBGA-160 enclosure during system integration.

Part Context

This part belongs to the 82V2048 family of octal line interface units from Renesas (formerly IDT). The family provides high-channel-count solutions for telecom infrastructure. Variants typically differ by packaging type, such as PBGA or BGA, and environmental compliance suffixes. The 82V2048 series is designed to replace older discrete solutions or lower-density ICs in carrier-grade networking hardware.

Replacement Considerations

Direct substitutes may include other octal LIUs from Renesas or competitors offering similar channel counts. Verify pin-to-pin compatibility if replacing on existing boards. Cross-reference with the 82V2058 series for potential functional equivalents. Check manufacturer notices for approved alternate part numbers due to end-of-life status.