DS21354L+ Equivalent & Substitute Parts

Part Overview

The DS21354L+ is an active telecom interface IC manufactured by Analog Devices Inc./Maxim Integrated. This single-chip transceiver operates as a telecom interface supporting E1 and HDLC protocols in a 100-LQFP surface mount package. The component is currently in active product status with 1498 units available in new original inventory. Finding equivalent parts is necessary when addressing supply chain constraints, regional availability limitations, or procurement lead time requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

DS21354L+

Analog Devices Inc./Maxim IntegratedIn Stock: 1542DS21354L+ Datasheet

Current PartRFQ

DS21354L+

Analog Devices Inc./Maxim IntegratedIn Stock: 1542DS21354L+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS21354L+ is determined by strict equivalence across the following critical parameters:

• Functional Equivalence: Single-chip transceiver architecture with identical E1 and HDLC protocol support
• Electrical Specifications: Voltage supply range of 3.14V ~ 3.47V and supply current of 75mA
• Thermal Operating Range: 0°C ~ 70°C operating temperature specification
• Package Compatibility: 100-LQFP (14x14) surface mount package with identical pin configuration
• Compliance Standards: ROHS3 compliance and MSL 3 rating (168 Hours)
• Product Status: Active manufacturing status ensuring continued availability and support

Only parts meeting all specified parameters qualify as direct substitutes. The DS21354L+ represents the current standard for this application category.

Parameter Comparison

Engineering Selection Recommendations

The DS21354L+ is the specified component for E1/HDLC telecom interface applications requiring a single-chip transceiver in 100-LQFP packaging. Selection is based on:

• Active Product Status: Continued manufacturing and support from Analog Devices Inc./Maxim Integrated
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status meet current environmental standards
• Supply Availability: 1498 units in new original inventory provide immediate procurement capability
• Standardized Packaging: 100-LQFP (14x14) surface mount configuration ensures PCB compatibility with existing designs

Component selection should prioritize parts with identical electrical specifications, package configuration, and compliance certifications to ensure functional equivalence in telecom interface applications.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the DS21354L+? A: A valid substitute must match all electrical parameters (3.14V ~ 3.47V supply, 75mA current), support identical E1 and HDLC protocols, operate within 0°C ~ 70°C temperature range, use 100-LQFP (14x14) surface mount packaging, and maintain ROHS3 compliance with MSL 3 rating.

Q: Can the DS21354L+ be replaced with a different package type? A: No. The 100-LQFP (14x14) package is a critical specification. Different package types alter PCB footprint, pin configuration, and thermal characteristics, making them incompatible with existing designs.

Q: What is the significance of the MSL 3 (168 Hours) rating? A: MSL 3 indicates the component requires reflow soldering within 168 hours of moisture exposure. This specification must be maintained during component storage and handling to ensure solder joint reliability.

Q: Are there alternative manufacturers for this telecom interface function? A: Substitution is limited to parts meeting the exact electrical and mechanical specifications provided. Only components with identical voltage supply range, current draw, protocol support, and package configuration qualify as direct substitutes.

Q: How does ROHS3 compliance affect component selection? A: ROHS3 compliance is a regulatory requirement for electronic components in many markets. Substitute parts must maintain this compliance status to ensure legal and environmental standards are met in manufacturing and deployment.