MK2705SLF Equivalent & Substitute Parts

Part Overview

The MK2705SLF is an Audio MPEG Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation, designed to generate a 24.576MHz clock output for audio and MPEG applications. This device operates as a 1:1 clock source with integrated PLL functionality in an 8-SOIC surface mount package.

The MK2705SLF has reached obsolete product status. Identifying functionally equivalent substitute components is necessary to maintain design continuity and ensure supply chain availability for new production runs and legacy system support.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Category	Clock/Timing
Main Purpose	Audio, MPEG
Frequency Output	24.576MHz
PLL	Yes
Input Type	Clock, Crystal
Output Type	Clock
Number of Circuits	1
Ratio - Input:Output	1:1
Voltage Supply	3V ~ 3.6V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MK2705SLF is determined by the following critical parameters:

Functional Requirements:

Clock/Timing category with integrated PLL functionality
Audio and MPEG application support
Single output circuit configuration
Clock input and output signal types

Electrical Specifications:

Output frequency capability of 24.576MHz or higher
Supply voltage compatibility within or overlapping the 3V ~ 3.6V range
Operating temperature range suitable for the application environment

Physical & Compliance Requirements:

Surface mount technology
RoHS3 compliance
MSL rating of 1 or better
Active or current product status for long-term availability

The 5P35021B-000NDGI qualifies as a substitute based on its clock generator functionality with PLL, multi-voltage supply support including the 3.135V ~ 3.465V range, active product status, and equivalent compliance certifications.

Parameter Comparison

Parameter	MK2705SLF	5P35021B-000NDGI
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Category	Clock/Timing	Clock/Timing
Product Status	Obsolete	Active
PLL	Yes	Yes with Bypass
Input Type	Clock, Crystal	LVCMOS, Crystal
Output Type	Clock	LP-HCSL, LVCMOS, LVDS, LVPECL
Number of Circuits	1	1
Frequency - Max	24.576MHz	500MHz
Voltage - Supply	3V ~ 3.6V	1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The 5P35021B-000NDGI is the qualified substitute for the obsolete MK2705SLF based on the following engineering criteria:

Product Availability: The 5P35021B-000NDGI maintains active product status with Renesas Electronics Corporation, ensuring continued supply and manufacturing support. The MK2705SLF obsolete status creates supply risk for ongoing production.

Compliance & Certification: Both devices maintain ROHS3 compliance, MSL rating of 1, and equivalent REACH and ECCN classifications, ensuring regulatory continuity in applications requiring these certifications.

Electrical Compatibility: The 5P35021B-000NDGI supply voltage range of 3.135V ~ 3.465V overlaps the MK2705SLF requirement of 3V ~ 3.6V, providing direct voltage compatibility. The extended operating temperature range of -40°C ~ 85°C exceeds the MK2705SLF specification of 0°C ~ 70°C.

Functional Capability: The 5P35021B-000NDGI clock generator with integrated PLL and bypass capability supports the required 24.576MHz output frequency within its 500MHz maximum specification. Multiple output format options (LP-HCSL, LVCMOS, LVDS, LVPECL) provide design flexibility beyond the single clock output of the MK2705SLF.

Frequently Asked Questions (FAQ)

Q: Can the 5P35021B-000NDGI directly replace the MK2705SLF without circuit modifications?

A: The 5P35021B-000NDGI requires evaluation of output signal format compatibility. The MK2705SLF provides a single clock output, while the 5P35021B-000NDGI offers multiple output formats (LP-HCSL, LVCMOS, LVDS, LVPECL). Circuit design must confirm that the selected output format matches the receiving circuit input requirements. Supply voltage compatibility exists within the overlapping 3.135V ~ 3.465V range.

Q: What are the package differences between these devices?

A: The MK2705SLF uses an 8-SOIC package (0.154", 3.90mm width), while the 5P35021B-000NDGI uses a 20-VFQFN Exposed Pad package (3x3mm). These are different physical packages requiring PCB layout redesign. Pin assignments and signal routing must be re-evaluated during substitution.

Q: Are there temperature range considerations for substitution?

A: The MK2705SLF operates from 0°C ~ 70°C, while the 5P35021B-000NDGI operates from -40°C ~ 85°C. The substitute device supports the original temperature range and extends capability to lower and higher temperatures. Applications limited to 0°C ~ 70°C operation remain fully supported.

Q: Does the 5P35021B-000NDGI support the same input types as the MK2705SLF?

A: Both devices support crystal input. The MK2705SLF accepts Clock or Crystal input, while the 5P35021B-000NDGI accepts LVCMOS or Crystal input. Crystal input compatibility is confirmed for direct substitution in crystal-based clock source applications.

Q: What is the significance of the PLL with Bypass feature in the 5P35021B-000NDGI?

A: The 5P35021B-000NDGI includes PLL bypass capability, allowing operation as a direct clock buffer when PLL functionality is not required. This provides additional design flexibility compared to the MK2705SLF, which operates with integrated PLL only.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message