JS28F512P33TFA Equivalent & Substitute Parts

Part Overview

The JS28F512P33TFA is a 512Mbit parallel NOR Flash memory IC manufactured by Micron Technology Inc., housed in a 56-TFSOP package. This component operates across a supply voltage range of 2.3V to 3.6V with an access time of 105 ns and a write cycle time of 105 ns. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring this memory capacity and interface type.

Substiute Parts

JS28F512P33TFA

Micron Technology Inc.In Stock: 1081JS28F512P33TFA Datasheet

Current PartRFQ

MT28EW512ABA1HJS-0SIT

Micron Technology Inc.In Stock: 18519MT28EW512ABA1HJS-0SIT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the JS28F512P33TFA is determined by strict alignment of the following critical parameters:

• Memory capacity: 512Mbit
• Memory technology: FLASH - NOR
• Interface type: Parallel
• Package type: 56-TFSOP
• Mounting method: Surface Mount
• Operating temperature range: -40°C ~ 85°C
• Supply voltage compatibility: Overlapping voltage ranges
• RoHS and regulatory compliance: ROHS3 Compliant

The MT28EW512ABA1HJS-0SIT meets all substitution criteria. Both devices share identical memory capacity, technology, interface, package dimensions, and thermal operating range. The substitute part supports both 64M x 8 and 32M x 16 memory organization, with the latter matching the main part's configuration. Supply voltage ranges overlap within the 2.7V to 3.6V window, ensuring compatibility in applications operating within this common range.

Parameter Comparison

Engineering Selection Recommendations

The MT28EW512ABA1HJS-0SIT is a direct functional substitute for the JS28F512P33TFA. Both components are manufactured by Micron Technology Inc. and maintain ROHS3 compliance and identical MSL ratings. The substitute part is currently in active production status, ensuring availability for new designs and ongoing system support.

The MT28EW512ABA1HJS-0SIT demonstrates improved performance characteristics, with access time reduced to 95 ns and write cycle time reduced to 60 ns compared to the main part's 105 ns specifications. Both devices operate within the overlapping supply voltage range of 2.7V to 3.6V and share identical thermal operating parameters. Pin-to-pin compatibility and package dimensions are identical, supporting direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the MT28EW512ABA1HJS-0SIT replace the JS28F512P33TFA in existing designs?

A: Yes. Both devices share identical package dimensions (56-TFSOP), pinout compatibility, memory capacity (512Mbit), interface type (Parallel), and operating temperature range (-40°C to 85°C). The substitute part operates within the overlapping supply voltage range of 2.7V to 3.6V.

Q: What are the key differences between these parts?

A: The MT28EW512ABA1HJS-0SIT offers faster access time (95 ns versus 105 ns) and faster write cycle time (60 ns versus 105 ns). The substitute part is in active production, whereas the main part is obsolete. Supply voltage minimum differs: the substitute requires 2.7V minimum versus 2.3V for the main part.

Q: Are there any voltage compatibility concerns?

A: Applications operating at supply voltages below 2.7V would require the JS28F512P33TFA or an alternative part supporting 2.3V operation. For systems operating within the 2.7V to 3.6V range, both parts are fully compatible.

Q: Does the substitute part support the same memory organization?

A: The MT28EW512ABA1HJS-0SIT supports both 64M x 8 and 32M x 16 configurations. The main part operates in 32M x 16 organization. The substitute part's 32M x 16 mode provides direct functional equivalence.

Q: Are both parts RoHS compliant?

A: Yes. Both the JS28F512P33TFA and MT28EW512ABA1HJS-0SIT are ROHS3 compliant with identical Moisture Sensitivity Level ratings of 3 (168 Hours).