DS21552L+ Equivalent & Substitute Parts

Part Overview

The DS21552L+ is a telecom interface IC functioning as a single-chip transceiver designed for E1, HDLC, J1, and T1 telecommunications protocols. This component integrates multiple interface standards into a single 100-LQFP package, enabling simplified circuit design for telecom applications. The product carries a "Not For New Designs" status, indicating that while functional and available, it is no longer recommended for new development projects. This status necessitates identification of equivalent or substitute components for ongoing maintenance, legacy system support, and production continuity.

Substiute Parts

DS21552L+

Analog Devices Inc./Maxim IntegratedIn Stock: 1174DS21552L+ Datasheet

Current PartRFQ

DS21552L+

Analog Devices Inc./Maxim IntegratedIn Stock: 1174DS21552L+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS21552L+ is determined by strict alignment with the following critical parameters:

• Interface Standards: Must support E1, HDLC, J1, and T1 protocols
• Package Type: Must be 100-LQFP (14x14) surface mount configuration
• Electrical Specifications: Supply voltage range 4.75V ~ 5.25V; supply current 75mA
• Operating Temperature Range: 0°C ~ 70°C
• Compliance: ROHS3 compliant; MSL rating 3 (168 Hours)
• Circuit Configuration: Single-circuit transceiver architecture

Based on the provided input data, the DS21552L+ is identified as both the main part and the direct substitute, indicating that this component represents the current available equivalent within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The DS21552L+ maintains full compliance with ROHS3 environmental standards and REACH regulations. The component is REACH Unaffected and classified under ECCN EAR99 for export purposes. Current inventory availability is documented at 1154 pieces in new original condition.

Selection of the DS21552L+ as a substitute is appropriate for applications requiring exact functional and electrical equivalence. The identical part number designation confirms parameter parity across all critical specifications including interface protocol support, electrical operating ranges, and physical packaging dimensions.

Frequently Asked Questions (FAQ)

Q: Why is the DS21552L+ marked "Not For New Designs"? A: This status indicates the component is in mature production phase and is no longer the subject of active development or enhancement by the manufacturer. Existing inventory remains available for legacy system support and production continuity.

Q: What telecommunications protocols does the DS21552L+ support? A: The DS21552L+ integrates support for E1, HDLC, J1, and T1 interface standards within a single transceiver IC, enabling multi-protocol telecommunications applications.

Q: Is the DS21552L+ suitable for new product development? A: The "Not For New Designs" status indicates this component is not recommended for new development projects. Alternative current-generation components from Analog Devices Inc./Maxim Integrated should be evaluated for new designs.

Q: What is the package configuration of the DS21552L+? A: The DS21552L+ is supplied in a 100-LQFP (Low-Profile Quad Flat Pack) surface mount package with dimensions of 14x14mm, suitable for high-density PCB layouts.

Q: What are the power supply requirements? A: The DS21552L+ operates with a supply voltage range of 4.75V to 5.25V and draws a maximum supply current of 75mA under normal operating conditions.

Q: What is the moisture sensitivity level (MSL) rating? A: The DS21552L+ carries an MSL rating of 3 with a floor life of 168 hours, requiring standard moisture control handling procedures during storage and assembly.