Renesas Electronics 501AMILFT Clock Generator IC - Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 501AMILFT is a Clock Generator IC operating at 166MHz maximum frequency in an 8-SOIC package. This component is classified as Obsolete product status, necessitating identification of functionally equivalent alternatives for new designs or production continuity. The part features a single circuit with PLL capability, accepting clock or crystal input and providing CMOS output at a 1:1 input-to-output ratio. With 1026 units currently in stock, substitute parts are required for applications where long-term availability or design flexibility is prioritized.

Substiute Parts

501AMILFT

Renesas Electronics CorporationIn Stock: 1084501AMILFT Datasheet

Current PartRFQ

5L2503-000NVGI8

Renesas Electronics CorporationIn Stock: 50875L2503-000NVGI8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 501AMILFT is determined by the following critical parameters:

• Functional Type: Clock Generator with PLL capability
• Supply Voltage Compatibility: Operating range must accommodate system voltage requirements
• Operating Temperature Range: Must support -40°C ~ 85°C industrial specifications
• Mounting Technology: Surface mount requirement for PCB integration
• Output Logic Family: CMOS or compatible logic output
• Manufacturer Support: Active product status for long-term availability

The substitute part 5L2503-000NVGI8 is identified as a Renesas Electronics alternative within the same product family. However, this substitute exhibits significant parameter divergence from the 501AMILFT, including different frequency specification, circuit count, input-to-output ratio, supply voltage range, and package form factor. Direct functional equivalence cannot be established based on the provided parameters.

Parameter Comparison

Engineering Selection Recommendations

The 501AMILFT is designated as Obsolete product status. The identified substitute 5L2503-000NVGI8 carries Active product status from the same manufacturer, ensuring ongoing support and availability.

Selection between these parts must be based on application-specific requirements:

501AMILFT Retention: Applicable only where existing inventory supports current production needs and no design modifications are permissible. Suitable for legacy system maintenance with established supply chains.

5L2503-000NVGI8 Adoption: Recommended for new designs requiring long-term component availability and manufacturer support. This part requires design-level evaluation due to significant parameter differences in frequency specification, supply voltage, circuit count, and package form factor. PCB layout modifications and schematic redesign are necessary for implementation.

Both parts maintain identical operating temperature range (-40°C ~ 85°C), REACH Unaffected status, and EAR99 ECCN classification, supporting equivalent regulatory compliance profiles.

Frequently Asked Questions (FAQ)

Q: Can the 5L2503-000NVGI8 directly replace the 501AMILFT on existing PCBs?

A: No. The substitute part differs in package form factor (12-UFDFN versus 8-SOIC), supply voltage range (1.71V-1.89V versus 3V-3.6V), maximum frequency (32.768kHz versus 166MHz), and circuit count (3 versus 1). PCB redesign and schematic modification are required.

Q: What are the critical substitution parameters for clock generator ICs?

A: Substitution eligibility is determined by: maximum frequency specification, supply voltage range, output logic family, number of circuits, input-to-output ratio, operating temperature range, and package form factor. All parameters must align with application requirements.

Q: Why does the 501AMILFT show Obsolete status?

A: Obsolete designation indicates the manufacturer has discontinued production and support. Existing inventory may remain available through authorized distributors, but long-term sourcing cannot be guaranteed.

Q: Are there compliance differences between these parts?

A: Both parts maintain identical REACH Unaffected status and EAR99 ECCN classification. The 5L2503-000NVGI8 carries RoHS3 Compliant certification, while the 501AMILFT does not specify RoHS status. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the significance of the 1:1 versus 1:3 input-to-output ratio?

A: The input-to-output ratio defines the frequency multiplication or division relationship. The 501AMILFT maintains 1:1 ratio (no frequency modification), while the 5L2503-000NVGI8 provides 1:3 ratio (three output circuits with frequency division/multiplication capability). This represents a fundamental functional difference requiring application-level assessment.