SL23EP04SC-1 Equivalent & Substitute Parts

Part Overview

The SL23EP04SC-1 is a clock buffer IC manufactured by Skyworks Solutions Inc., designed for 220MHz clock distribution applications. This device features a 1:4 input-to-output ratio with LVCMOS output in an 8-SOIC package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy product support, and component procurement planning.

Substiute Parts

SL23EP04SC-1

Skyworks Solutions Inc.In Stock: 784SL23EP04SC-1 Datasheet

Current PartRFQ

SI53365-B-GT

Skyworks Solutions Inc.In Stock: 2123SI53365-B-GT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SL23EP04SC-1 is determined by the following critical parameters:

• Frequency capability: Maximum operating frequency must meet or exceed 220 MHz
• Output configuration: LVCMOS output type required for signal compatibility
• Supply voltage range: Must operate within or encompass the 2.97V ~ 3.63V range
• Package compatibility: Surface mount technology with compatible pinout and thermal characteristics
• Ratio configuration: Input-to-output ratio determines fanout capability; 1:4 is the baseline requirement

The SI53365-B-GT is identified as a substitute based on shared manufacturer lineage, compatible LVCMOS output architecture, overlapping supply voltage specifications, and surface mount packaging. However, differences in frequency rating, ratio configuration, and package type introduce specific design considerations detailed in the parameter comparison.

Parameter Comparison

Engineering Selection Recommendations

The SI53365-B-GT serves as an active substitute for the obsolete SL23EP04SC-1 based on the following engineering criteria:

Compatibility factors: Both devices are manufactured by Skyworks Solutions Inc. and employ LVCMOS output architecture. The SI53365-B-GT operates within the supply voltage range of the original part and maintains surface mount compatibility.

Compliance and production status: The SI53365-B-GT is an active product with ROHS3 compliance certification and extended moisture sensitivity shelf life (1 year versus 4 weeks), providing superior long-term component storage and environmental compliance for modern manufacturing environments.

Design trade-offs: The SI53365-B-GT operates at 200 MHz maximum frequency, which is 20 MHz below the SL23EP04SC-1 specification. Applications requiring the full 220 MHz capability must evaluate whether this frequency reduction impacts system performance. The SI53365-B-GT provides 1:8 fanout versus the original 1:4 configuration, offering additional output channels that may require circuit redesign or selective output termination. The 16-TSSOP package differs from the 8-SOIC footprint, necessitating PCB layout modifications.

Temperature range: The SI53365-B-GT supports -40°C to 85°C operation, exceeding the original 0°C to 70°C range and enabling deployment in extended industrial temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the SI53365-B-GT directly replace the SL23EP04SC-1 without PCB modifications?

A: No. The SI53365-B-GT uses a 16-TSSOP package while the SL23EP04SC-1 uses an 8-SOIC package. PCB layout redesign is required to accommodate the different footprint, pin count, and spacing.

Q: Is the 200 MHz maximum frequency of the SI53365-B-GT sufficient for applications designed for 220 MHz?

A: This depends on the specific application requirements. The 20 MHz difference represents approximately 9% reduction in maximum frequency. Applications operating at or near 220 MHz must verify that 200 MHz operation meets system timing margins and performance specifications.

Q: What are the implications of the 1:8 ratio versus the original 1:4 ratio?

A: The SI53365-B-GT provides eight output channels instead of four. Designs requiring only four outputs can leave unused outputs unterminated or terminated according to the device datasheet. Alternatively, designs can utilize all eight outputs for expanded clock distribution.

Q: Does the SI53365-B-GT meet modern environmental and compliance standards?

A: Yes. The SI53365-B-GT is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The extended MSL rating (1 year versus 4 weeks) provides improved component shelf life for inventory management.

Q: Are there pin-to-pin compatibility considerations between these devices?

A: No. The different package types (8-SOIC versus 16-TSSOP) result in different pin assignments and counts. Complete schematic and PCB redesign is necessary; pin-to-pin substitution is not possible.

Q: What is the supply voltage compatibility between these parts?

A: The SI53365-B-GT supply range (1.71V ~ 3.63V) encompasses the SL23EP04SC-1 range (2.97V ~ 3.63V). Systems designed for 2.97V ~ 3.63V operation are compatible with the SI53365-B-GT without voltage supply modifications.