JS28F512M29EWLD Equivalent & Substitute Parts

Part Overview

The JS28F512M29EWLD 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 component procurement. The part operates across a wide temperature range (-40°C to 85°C) and is compliant with RoHS3 and REACH regulations, with Moisture Sensitivity Level 3 classification.

Substiute Parts

JS28F512M29EWLD

Micron Technology Inc.In Stock: 1378JS28F512M29EWLD Datasheet

Current PartRFQ

MT28EW512ABA1LJS-0SIT

Micron Technology Inc.In Stock: 5731MT28EW512ABA1LJS-0SIT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS28F512M29EWLD is based on strict equivalence across the following critical parameters:

• Memory capacity: 512Mbit
• Memory technology: FLASH - NOR
• Memory organization: 64M x 8, 32M x 16
• Interface type: Parallel
• Package type: 56-TFSOP
• Supply voltage range: 2.7V ~ 3.6V
• Operating temperature range: -40°C ~ 85°C
• Regulatory compliance: RoHS3 and REACH

The MT28EW512ABA1LJS-0SIT meets all these criteria and is manufactured by the same supplier (Micron Technology Inc.), ensuring functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MT28EW512ABA1LJS-0SIT is a direct functional substitute for the JS28F512M29EWLD. Both parts share identical memory capacity, organization, interface type, package configuration, and regulatory compliance status. The substitute part is currently in active production status, whereas the original part is obsolete. The MT28EW512ABA1LJS-0SIT demonstrates improved performance characteristics with reduced access time (95 ns versus 110 ns) and write cycle time (60 ns versus 110 ns), making it suitable for applications requiring the original part's specifications. Both components maintain identical supply voltage ranges and operating temperature specifications, ensuring direct pin-compatible replacement in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the MT28EW512ABA1LJS-0SIT be used as a direct replacement for the JS28F512M29EWLD?

A: Yes. Both parts are 512Mbit parallel NOR Flash memory devices with identical memory organization (64M x 8, 32M x 16), package type (56-TFSOP), supply voltage (2.7V ~ 3.6V), and operating temperature range (-40°C ~ 85°C). Pin compatibility and functional equivalence are maintained.

Q: What are the performance differences between these parts?

A: The MT28EW512ABA1LJS-0SIT offers faster access time (95 ns versus 110 ns) and faster write cycle time (60 ns versus 110 ns). These improvements do not affect compatibility; systems designed for the original part will operate correctly with the substitute.

Q: Are there any packaging or handling differences?

A: Both parts use the 56-TFSOP package with identical physical dimensions (0.724", 18.40mm Width). Both carry MSL rating 3 (168 Hours), requiring identical moisture control during storage and handling.

Q: What is the regulatory compliance status of the substitute part?

A: The MT28EW512ABA1LJS-0SIT is ROHS3 compliant and REACH unaffected, matching the original part's compliance profile.

Q: Why is the original part listed as obsolete?

A: The JS28F512M29EWLD is classified as obsolete by the manufacturer. The MT28EW512ABA1LJS-0SIT represents the active production equivalent for new designs and ongoing component procurement.