82P2821BHG

Overview

The Renesas Electronics Corporation 82P2821BHG is a high-density Line Interface Unit (LIU) designed for telecommunications applications. It integrates 28 channels of E1 line interface functionality within a single integrated circuit. The component utilizes a PBGA-640 surface-mount package to accommodate the high channel count in a compact form factor. As part of the 82P2821 series, this device serves as a critical interface between digital switching systems and E1 transmission lines, handling the physical layer signaling requirements for multi-channel telephony infrastructure.

Feature Summary

• Integrates 28 independent E1 line interface channels for consolidated hardware design
• Supports high-density deployment through a compact PBGA-640 surface-mount package
• Functions as a dedicated Line Interface Unit (LIU) for telecom network equipment

Applications

• Central Office telephony switching systems
• Private Automatic Branch Exchange (PABX) installations
• E1 multiplexer and demultiplexer units
• Wireless base station backhaul interfaces

Procurement Notes

This component has reached End-of-Life status, indicating that Renesas Electronics will discontinue manufacturing. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors. Buyers must assess long-term supply chain risks and plan for necessary redesigns or alternative sourcing strategies due to the confirmed obsolescence notification.

Selection Notes

Engineers selecting this part should verify compatibility with existing E1 framing standards and clock recovery requirements. The PBGA-640 package necessitates specific PCB layout considerations for thermal management and signal integrity. Given the discontinued status, designers should evaluate pin-compatible alternatives or newer generations within the Renesas portfolio that offer similar channel densities and interface capabilities.

Part Context

The 82P2821BHG belongs to the 82P2821 family of telecom interface ICs produced by Renesas Electronics. This series is engineered for high-performance E1/T1 applications, providing robust line driving and receiving capabilities. The B suffix typically denotes a specific temperature range or packaging variant within the broader product line, distinguishing it from other members like the 82P2828.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, engineers should consult Renesas technical support for recommended obsolescence migration paths or equivalent components from other manufacturers that meet E1 LIU specifications.