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MK2746G Equivalent & Substitute Parts
Part Overview
The MK2746G is a Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation, designed for 133.33MHz operation in a 16-TSSOP surface mount package. This component integrates a Phase-Locked Loop (PLL) with bypass capability, accepting clock or crystal inputs and delivering CMOS outputs with a 2:5 input-to-output frequency ratio.
The MK2746G is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Renesas Electronics Corporation |
| Category | Clock/Timing |
| Type | Clock/Frequency Synthesizer |
| Frequency - Max | 133.33MHz |
| PLL Configuration | Yes with Bypass |
| Input Type | Clock, Crystal |
| Output Type | CMOS |
| Ratio - Input:Output | 2:5 |
| Number of Circuits | 1 |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the MK2746G are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:
Critical Matching Parameters:
- Frequency - Max: 133.33MHz
- PLL Configuration: Yes with Bypass
- Input Type: Clock, Crystal
- Output Type: CMOS
- Ratio - Input:Output: 2:5
- Number of Circuits: 1
- Voltage - Supply: 3V ~ 3.6V
- Operating Temperature: 0°C ~ 70°C
- Package / Case: 16-TSSOP (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
The MK2746GLF is classified as a direct manufacturer substitute, sharing identical electrical specifications and package configuration with the MK2746G while offering improved product status and compliance certifications.
Parameter Comparison
| Parameter | MK2746G | MK2746GLF |
|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Type | Clock/Frequency Synthesizer | Clock/Frequency Synthesizer |
| Frequency - Max | 133.33MHz | 133.33MHz |
| PLL Configuration | Yes with Bypass | Yes with Bypass |
| Input Type | Clock, Crystal | Clock, Crystal |
| Output Type | CMOS | CMOS |
| Ratio - Input:Output | 2:5 | 2:5 |
| Number of Circuits | 1 | 1 |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The MK2746GLF is the direct substitute for the MK2746G. Both components share identical electrical and mechanical specifications, ensuring functional equivalence in circuit applications. The MK2746GLF offers two significant advantages:
Product Status: The MK2746GLF maintains active product status with current manufacturing support, whereas the MK2746G is obsolete and subject to supply discontinuation.
Compliance: The MK2746GLF is ROHS3 compliant, meeting current environmental and regulatory requirements. The MK2746G is RoHS non-compliant, which may present compliance challenges for new designs or applications subject to regulatory restrictions.
Selection of the MK2746GLF is appropriate for applications requiring long-term supply assurance, regulatory compliance, or replacement of existing MK2746G installations.
Frequently Asked Questions (FAQ)
Q: Can the MK2746GLF directly replace the MK2746G in existing designs?
A: Yes. The MK2746GLF is electrically and mechanically identical to the MK2746G. All electrical parameters, frequency specifications, supply voltage ranges, operating temperature ranges, and package configurations are equivalent. Direct substitution is possible without circuit modification.
Q: What is the difference between the MK2746G and MK2746GLF?
A: The primary differences are product status and compliance certification. The MK2746G is obsolete with RoHS non-compliant status. The MK2746GLF is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.
Q: Are there any package or pinout differences between these parts?
A: No. Both the MK2746G and MK2746GLF use the 16-TSSOP (0.173", 4.40mm Width) surface mount package with identical pinout and mechanical dimensions.
Q: Why should I transition from MK2746G to MK2746GLF?
A: The MK2746G is obsolete, creating supply chain risk. The MK2746GLF ensures continued availability, meets current RoHS3 environmental standards, and provides long-term manufacturing support from Renesas Electronics Corporation.
Q: Are the frequency specifications identical between both parts?
A: Yes. Both components operate at a maximum frequency of 133.33MHz with identical 2:5 input-to-output frequency ratios, PLL configurations, and CMOS output characteristics.
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