ISL6271ACR-T Equivalent & Substitute Parts

Part Overview

The ISL6271ACR-T is a Processor PMIC (Power Management Integrated Circuit) manufactured by Renesas Electronics Corporation in a 20-QFN (4x4) surface mount package. This component is designed for XScale processor power management applications. The ISL6271ACR-T has reached obsolete product status, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

ISL6271ACR-T

Renesas Electronics CorporationIn Stock: 1108ISL6271ACR-T Datasheet

Current PartRFQ

ISL6271ACRZ-T

Renesas Electronics CorporationIn Stock: 3246ISL6271ACRZ-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL6271ACR-T is determined by strict alignment of the following electrical and mechanical parameters:

• Package Compatibility: Both parts must use the 20-VFQFN Exposed Pad package with 20-QFN (4x4) physical dimensions to ensure PCB footprint compatibility
• Electrical Specifications: Voltage supply range (2.76V ~ 5.5V) and current supply (380µA) must be identical
• Thermal Operating Range: Operating temperature range of -25°C ~ 85°C must be maintained
• Base Product Family: Both components must share the ISL6271 base product number, confirming functional equivalence within the Renesas processor PMIC product line

The ISL6271ACRZ-T meets all substitution criteria as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

The ISL6271ACRZ-T is the direct substitute for the obsolete ISL6271ACR-T. Both components share identical electrical specifications, package geometry, and functional characteristics within the ISL6271 processor PMIC product family.

The ISL6271ACRZ-T offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the substitute part achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original part is RoHS non-compliant.

The MSL rating difference (MSL 1 versus MSL 3) reflects standard industry practice for active versus obsolete product lines and does not affect functional compatibility in processor power management applications.

Frequently Asked Questions (FAQ)

Q: Can the ISL6271ACRZ-T be used as a direct replacement for the ISL6271ACR-T?

A: Yes. Both parts share identical electrical specifications (2.76V ~ 5.5V supply, 380µA current), the same 20-VFQFN Exposed Pad package, and equivalent functional characteristics within the ISL6271 processor PMIC family.

Q: What is the difference in MSL ratings between these parts?

A: The ISL6271ACR-T carries MSL 1 (Unlimited moisture exposure), while the ISL6271ACRZ-T carries MSL 3 (168 hours maximum moisture exposure). This difference reflects standard moisture sensitivity classifications for obsolete versus active product lines and does not affect electrical or mechanical compatibility.

Q: Does the RoHS compliance difference impact substitution?

A: The ISL6271ACRZ-T is ROHS3 compliant, whereas the ISL6271ACR-T is RoHS non-compliant. For new designs or systems requiring RoHS compliance, the substitute part satisfies regulatory requirements. For legacy system maintenance, both parts remain functionally equivalent.

Q: Are the package dimensions identical?

A: Yes. Both the ISL6271ACR-T and ISL6271ACRZ-T use the 20-VFQFN Exposed Pad package with 20-QFN (4x4) physical dimensions, ensuring identical PCB footprint compatibility.

Q: Why is the original part listed as obsolete?

A: The ISL6271ACR-T has reached end-of-life status. The ISL6271ACRZ-T remains in active production, providing continued supply and manufacturing support for processor PMIC applications.