SL23EP04SC-2HT Equivalent & Substitute Parts

Part Overview

The SL23EP04SC-2HT is a clock buffer IC manufactured by Skyworks Solutions Inc., designed for 220MHz clock distribution applications. This component features a 1:4 input-to-output ratio with LVCMOS output in an 8-SOIC surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where legacy compatibility is required.

Substiute Parts

SL23EP04SC-2HT

Skyworks Solutions Inc.In Stock: 1003SL23EP04SC-2HT Datasheet

Current PartRFQ

SI53365-B-GTR

Skyworks Solutions Inc.In Stock: 969SI53365-B-GTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL23EP04SC-2HT is determined by the following critical parameters:

Functional Compatibility Criteria:

• Clock buffer/fanout buffer functionality
• Maximum frequency capability equal to or exceeding 220 MHz
• Input-to-output ratio of 1:4 or higher (1:8 acceptable for expanded distribution)
• LVCMOS input and output signal compatibility
• Supply voltage range overlap with 3.3V nominal operation

Physical & Environmental Criteria:

• Surface mount packaging suitable for PCB integration
• Operating temperature range that encompasses or exceeds 0°C ~ 70°C
• Moisture sensitivity classification compatible with standard handling procedures

The SI53365-B-GTR qualifies as a functional substitute based on these parameters, despite differences in package form factor and expanded output channels.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Product Status

The SL23EP04SC-2HT is obsolete, necessitating transition to active alternatives. The SI53365-B-GTR maintains active product status with Skyworks Solutions Inc., ensuring continued availability, technical support, and compliance with current manufacturing standards.

Compliance & Certification

Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, confirming regulatory equivalence for export and tariff purposes.

Functional Suitability

The SI53365-B-GTR operates at 200 MHz maximum frequency, which is 20 MHz below the SL23EP04SC-2HT specification. For applications requiring the full 220 MHz capability, this frequency differential must be evaluated against actual system clock requirements. The SI53365-B-GTR provides expanded output channels (1:8 versus 1:4), offering additional distribution capability without functional penalty.

Supply Voltage Compatibility

The SI53365-B-GTR supply voltage range (1.71V ~ 3.63V) encompasses the SL23EP04SC-2HT range (2.97V ~ 3.63V), ensuring direct compatibility at 3.3V nominal operation.

Operating Temperature Range

The SI53365-B-GTR operating range (-40°C ~ 85°C) exceeds the SL23EP04SC-2HT specification (0°C ~ 70°C), providing enhanced thermal margin for extended environmental conditions.

Package Transition

Substitution requires PCB layout modification due to package change from 8-SOIC to 16-TSSOP. The SI53365-B-GTR footprint is slightly larger (0.173" versus 0.154" width), necessitating design verification for space constraints.

Frequently Asked Questions (FAQ)

Q: Can the SI53365-B-GTR directly replace the SL23EP04SC-2HT without design changes?

A: Functional substitution is possible with PCB layout modification. The 16-TSSOP package requires different footprint design compared to the 8-SOIC original. Electrical compatibility is confirmed at 3.3V supply voltage and LVCMOS signal levels.

Q: What is the impact of the 20 MHz frequency difference?

A: The SI53365-B-GTR maximum frequency of 200 MHz is suitable for applications operating at or below this threshold. Systems requiring 220 MHz operation must evaluate whether actual clock frequencies exceed 200 MHz or if the specification represents design margin. Consult system timing requirements before substitution.

Q: Does the 1:8 output ratio of the SI53365-B-GTR create compatibility issues?

A: The expanded 1:8 ratio provides additional output channels without reducing functionality. Systems designed for 1:4 distribution will operate correctly with the additional outputs either utilized or left unconnected, depending on application requirements.

Q: Are there moisture sensitivity differences between these parts?

A: The SL23EP04SC-2HT carries MSL 2A (4 weeks), while the SI53365-B-GTR carries MSL 2 (1 year). The SI53365-B-GTR provides extended moisture tolerance, reducing handling constraints during storage and assembly.

Q: What certifications apply to both parts?

A: Both parts share ECCN EAR99 and HTSUS 8542.39.0001 classifications, confirming regulatory equivalence for procurement and international trade purposes.

Q: Is the SI53365-B-GTR the only available substitute?

A: The SI53365-B-GTR is identified as the primary substitute based on provided parameters. Additional alternatives may exist within the Skyworks Solutions Inc. product portfolio or from competing manufacturers; however, only the SI53365-B-GTR is documented in the provided substitute list.