JS28F512M29EWLB TR - Equivalent & Substitute Parts

Part Overview

The JS28F512M29EWLB TR is a 512Mbit parallel NOR Flash memory IC manufactured by Micron Technology Inc., packaged in a 56-TSOP surface mount configuration. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and production continuity. The part operates across a wide temperature range (-40°C to 85°C) with a 110 ns access time and supports dual memory organization (64M x 8 or 32M x 16), making it suitable for embedded systems requiring non-volatile parallel memory storage.

Substiute Parts

JS28F512M29EWLB TR

Micron Technology Inc.In Stock: 1043JS28F512M29EWLB TR Datasheet

Current PartRFQ

MT28EW512ABA1LJS-0SIT TR

Micron Technology Inc.In Stock: 1177MT28EW512ABA1LJS-0SIT TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS28F512M29EWLB TR is determined by strict equivalence across the following critical parameters:

• Memory capacity: 512Mbit
• Memory technology: FLASH - NOR
• Memory organization: 64M x 8 or 32M x 16
• Parallel interface architecture
• Supply voltage range: 2.7V ~ 3.6V
• Operating temperature range: -40°C ~ 85°C
• Package specification: 56-TFSOP surface mount
• Compliance certifications: ROHS3, REACH Unaffected

The MT28EW512ABA1LJS-0SIT TR meets all these criteria. While this substitute exhibits improved performance characteristics (95 ns access time versus 110 ns, and 60 ns write cycle time versus 110 ns), these enhancements maintain full backward compatibility with the original part's electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The MT28EW512ABA1LJS-0SIT TR is the direct substitute for the obsolete JS28F512M29EWLB TR. Both parts maintain identical electrical specifications, memory organization, and physical packaging. The substitute part carries Active product status, ensuring continued availability and supply chain support. Both components satisfy ROHS3 compliance and REACH unaffected requirements, supporting regulatory continuity in applications requiring these certifications.

The substitute part's improved access time (95 ns versus 110 ns) and write cycle time (60 ns versus 110 ns) provide performance enhancement without requiring design modifications. Pin-to-pin compatibility and identical package dimensions (56-TFSOP, 0.724" × 18.40mm) enable direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the MT28EW512ABA1LJS-0SIT TR replace the JS28F512M29EWLB TR in existing designs?

A: Yes. Both parts share identical memory capacity (512Mbit), organization (64M x 8 or 32M x 16), parallel interface, supply voltage (2.7V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 56-TFSOP package specifications. Pin-to-pin compatibility is maintained.

Q: What are the performance differences between these parts?

A: The substitute part offers faster access time (95 ns versus 110 ns) and faster write cycle time (60 ns versus 110 ns). These improvements are backward compatible and do not require circuit modifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the JS28F512M29EWLB TR and MT28EW512ABA1LJS-0SIT TR are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the product status difference?

A: The original part (JS28F512M29EWLB TR) is obsolete, indicating discontinued production. The substitute (MT28EW512ABA1LJS-0SIT TR) maintains Active status, ensuring ongoing availability, supply chain support, and manufacturing continuity.

Q: Are the moisture sensitivity levels identical?

A: Yes. Both parts carry MSL rating 3 (168 Hours), requiring identical handling and storage protocols.

Q: Can these parts be used interchangeably in production?

A: Yes. Identical electrical specifications, memory organization, package type, and compliance certifications enable direct substitution without design changes or board rework.