PC28F064M29EWHA Equivalent & Substitute Parts

Part Overview

The PC28F064M29EWHA is a 64Mbit parallel NOR Flash memory IC manufactured by Micron Technology Inc., packaged in a 64-FBGA (11x13) configuration. This component operates at 2.7V to 3.6V supply voltage with a 60 ns access time and supports 8M x 8 or 4M x 16 memory organization. The product is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

PC28F064M29EWHA

Micron Technology Inc.In Stock: 2310PC28F064M29EWHA Datasheet

Current PartRFQ

MT28EW128ABA1HPC-0SIT

Micron Technology Inc.In Stock: 9022MT28EW128ABA1HPC-0SIT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PC28F064M29EWHA is based on the following critical parameters that must remain compatible:

• Memory Interface: Parallel (required for direct pin compatibility)
• Package / Case: 64-LBGA (11x13) (required for PCB footprint compatibility)
• Voltage Supply: 2.7V ~ 3.6V (required for power supply compatibility)
• Operating Temperature: -40°C ~ 85°C (required for thermal environment compatibility)
• Technology: FLASH - NOR (required for functional equivalence)
• Mounting Type: Surface Mount (required for assembly process compatibility)
• RoHS Status: ROHS3 Compliant (required for regulatory compliance)

The MT28EW128ABA1HPC-0SIT qualifies as a substitute part because it maintains compatibility across all critical parameters. While the memory size increases from 64Mbit to 128Mbit and access time extends from 60 ns to 95 ns, these differences do not prevent functional substitution in applications where the larger capacity and slightly longer access time are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The MT28EW128ABA1HPC-0SIT is suitable as a substitute for the obsolete PC28F064M29EWHA based on the following factors:

• Both components maintain identical package geometry (64-LBGA 11x13), enabling direct PCB footprint compatibility without layout modifications.
• Both components operate within the same voltage supply range (2.7V ~ 3.6V) and temperature range (-40°C ~ 85°C), ensuring compatibility with existing power distribution and thermal management systems.
• Both components are ROHS3 compliant and carry identical MSL ratings, maintaining regulatory and environmental compliance requirements.
• The MT28EW128ABA1HPC-0SIT holds active product status, ensuring long-term availability and supply chain stability compared to the obsolete PC28F064M29EWHA.
• The MT28EW128ABA1HPC-0SIT has been verified as programmable by DiGi-Electronics, confirming functional compatibility.

The increased memory capacity (128Mbit versus 64Mbit) and extended access time (95 ns versus 60 ns) must be evaluated within the context of the specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can the MT28EW128ABA1HPC-0SIT be used as a direct replacement for the PC28F064M29EWHA without PCB modifications?

A: Yes. Both components use the 64-LBGA (11x13) package, providing identical pin count, pitch, and footprint geometry. No PCB layout changes are required.

Q: What is the primary difference between these two parts?

A: The MT28EW128ABA1HPC-0SIT provides double the memory capacity (128Mbit versus 64Mbit) and has a longer access time (95 ns versus 60 ns). Both maintain identical voltage supply, temperature range, and package specifications.

Q: Are there any voltage or power supply compatibility concerns?

A: No. Both components operate within the identical voltage supply range of 2.7V ~ 3.6V. Existing power distribution circuits require no modification.

Q: Does the extended access time of the MT28EW128ABA1HPC-0SIT affect system performance?

A: The access time difference (95 ns versus 60 ns) must be evaluated against the specific timing requirements of the application. If the original design operated with 60 ns margins, the 95 ns access time may impact performance depending on system clock frequencies and memory access patterns.

Q: Are both components RoHS compliant?

A: Yes. Both the PC28F064M29EWHA and MT28EW128ABA1HPC-0SIT are ROHS3 compliant and carry identical MSL ratings of 3 (168 Hours).

Q: Why is the PC28F064M29EWHA classified as obsolete?

A: The PC28F064M29EWHA has reached end-of-life status with Micron Technology Inc. The MT28EW128ABA1HPC-0SIT maintains active product status, ensuring continued availability and manufacturing support.