MK2703BSLF Equivalent & Substitute Parts

Part Overview

The MK2703BSLF is a PLL Clock Synthesizer IC manufactured by Renesas Electronics Corporation, designed for 27MHz clock generation in 8-SOIC surface mount packaging. This component features PLL functionality with bypass capability, accepting clock or crystal inputs and providing CMOS outputs. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and design updates.

Substiute Parts

MK2703BSLF

Renesas Electronics CorporationIn Stock: 1444MK2703BSLF Datasheet

Current PartRFQ

5P50912NBGI

Renesas Electronics CorporationIn Stock: 11205P50912NBGI Datasheet

MFR RecommendedRFQ

MK2703SLF

Renesas Electronics CorporationIn Stock: 3663MK2703SLF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MK2703BSLF are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• PLL Clock Synthesizer functionality
• Maximum frequency capability (27MHz or higher)
• Supply voltage range compatibility (overlap with 3.13V ~ 5.5V)
• Surface mount packaging
• ROHS3 compliance and MSL rating

Substitute Categories:

MFR Recommended Substitute - 5P50912NBGI: This part meets the core functional requirement as a PLL-based clock generator with spread spectrum capability. It operates at 30MHz maximum frequency, exceeding the MK2703BSLF specification. However, the supply voltage range (1.7V ~ 3.63V) does not overlap with the original part's 3.13V ~ 5.5V range, and the package differs (8-VFDFN vs. 8-SOIC). This substitute is suitable only for designs that can accommodate the lower voltage range and alternative package footprint.

Parametric Equivalent - MK2703SLF: This part is a direct parametric equivalent sharing identical electrical specifications with the MK2703BSLF, including frequency, voltage range, temperature range, and package type. The only difference is the packaging format designation. This part maintains full compatibility for direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended): Select MK2703SLF as the primary equivalent. This part maintains identical electrical and thermal specifications with the MK2703BSLF, ensuring seamless integration into existing PCB designs without circuit modifications. Both parts are obsolete but share the same base product number (MK2703), indicating design lineage compatibility.

For New Designs or Redesigns: The 5P50912NBGI offers an active product status alternative with enhanced frequency capability (30MHz). However, selection requires design accommodation for the following differences: reduced supply voltage range (1.7V ~ 3.63V maximum versus 3.13V ~ 5.5V), different package footprint (8-VFDFN versus 8-SOIC), and extended operating temperature range (-40°C ~ 85°C). The spread spectrum feature of the 5P50912NBGI may provide additional benefits for EMI reduction in applicable applications.

Compliance Considerations: All three parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and moisture handling compatibility across substitution options.

Frequently Asked Questions (FAQ)

Q: Can MK2703SLF be used as a direct drop-in replacement for MK2703BSLF?

A: Yes. MK2703SLF is a parametric equivalent with identical electrical specifications, supply voltage range, operating temperature range, and package dimensions. No circuit modifications are required.

Q: What are the limitations of using 5P50912NBGI as a substitute?

A: The 5P50912NBGI operates at a lower maximum supply voltage (3.63V versus 5.5V). Designs requiring the full 3.13V ~ 5.5V range cannot use this part without circuit redesign. Additionally, the 8-VFDFN package differs from the 8-SOIC footprint, requiring PCB layout changes. The input specification differs (crystal only versus clock or crystal), which may affect circuit configuration.

Q: Why is the MK2703BSLF classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed. Parametric equivalents or active alternatives should be evaluated for new production runs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both MK2703SLF and 5P50912NBGI maintain ROHS3 compliance, matching the environmental standards of the original MK2703BSLF.

Q: What is the difference between the MK2703BSLF and MK2703SLF part numbers?

A: The difference lies in the packaging designation suffix (BSLF versus SLF). Both parts share the base product number MK2703 and maintain identical electrical and functional specifications. The suffix variation reflects packaging format differences assigned by the manufacturer.

Q: Can 5P50912NBGI be used in applications requiring 5V supply?

A: No. The 5P50912NBGI maximum supply voltage is 3.63V, which is below the 5V requirement. This part is not suitable for designs requiring the full 3.13V ~ 5.5V range of the original MK2703BSLF.