M25P64-VMF6TP TR Equivalent & Substitute Parts

Part Overview

The M25P64-VMF6TP TR is a 64Mbit NOR Flash memory IC with SPI interface manufactured by Micron Technology Inc. This device is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The part operates at 50 MHz with a supply voltage range of 2.7V to 3.6V and is housed in a 16-SOIC package. Identifying compatible alternatives ensures design continuity and supply chain reliability for systems requiring equivalent flash memory functionality.

Key Parameters

Parameter	Value
Memory Size	64Mbit
Memory Organization	8M x 8
Memory Interface	SPI
Clock Frequency	50 MHz
Voltage Supply Range	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package Type	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the M25P64-VMF6TP TR are selected based on the following critical parameters:

Primary Substitution Criteria:

Memory Size: 64Mbit (exact match required for address space compatibility)
Memory Organization: 8M x 8 (maintains data width and addressing scheme)
Package Type: 16-SOIC with 0.295" width and 7.50mm height (ensures PCB footprint compatibility)
Voltage Supply Range: 2.7V ~ 3.6V (compatible with existing power distribution)
Operating Temperature Range: -40°C ~ 85°C (matches thermal requirements)
RoHS3 Compliance and MSL 3 rating (maintains regulatory and environmental standards)

Secondary Compatibility Factors:

Memory Interface: SPI or SPI - Quad I/O (Quad I/O variants are backward compatible with standard SPI operation)
Clock Frequency: Minimum 50 MHz (higher frequencies provide operational margin)

The MT25QL128ABA8ESF-0SIT TR, while featuring 128Mbit capacity and Quad I/O interface, operates within compatible voltage and temperature ranges and shares the same package footprint, making it suitable for applications where increased memory capacity is beneficial. The MX25L6406EMI-12G and MX25L6445EMI-10G maintain exact 64Mbit capacity with identical memory organization and package specifications. The W25Q64JVSFIQ provides 64Mbit capacity with Quad I/O capability in the same package form factor.

Parameter Comparison

Parameter	M25P64-VMF6TP TR	MT25QL128ABA8ESF-0SIT TR	MX25L6406EMI-12G	MX25L6445EMI-10G	W25Q64JVSFIQ
Manufacturer	Micron Technology Inc.	Micron Technology Inc.	Macronix	Macronix	Winbond Electronics
Memory Size	64Mbit	128Mbit	64Mbit	64Mbit	64Mbit
Memory Organization	8M x 8	16M x 8	8M x 8	8M x 8	8M x 8
Memory Interface	SPI	SPI - Quad I/O	SPI	SPI	SPI - Quad I/O
Clock Frequency	50 MHz	133 MHz	86 MHz	104 MHz	133 MHz
Voltage Supply Range	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
Product Status	Obsolete	Active	Not For New Designs	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

For Direct Replacement (64Mbit, Identical Capacity):

The MX25L6406EMI-12G and MX25L6445EMI-10G provide exact memory capacity and organization matching. Both maintain SPI interface compatibility and identical package specifications. The MX25L6445EMI-10G operates at 104 MHz, providing higher performance margin than the original 50 MHz specification. Both parts carry ROHS3 compliance and MSL 3 rating. Note that both Macronix alternatives are classified as "Not For New Designs," indicating they may have limited long-term availability.

For Active Production (64Mbit with Enhanced Features):

The W25Q64JVSFIQ from Winbond Electronics maintains 64Mbit capacity with identical memory organization and package footprint. This part features SPI - Quad I/O interface, providing backward compatibility with standard SPI operation while enabling higher-speed Quad I/O modes when supported by the host controller. The W25Q64JVSFIQ carries Active product status, ensuring ongoing availability and support. ROHS3 compliance and MSL 3 rating are maintained.

For Increased Capacity Applications:

The MT25QL128ABA8ESF-0SIT TR doubles memory capacity to 128Mbit while maintaining voltage, temperature, and package compatibility. This part features SPI - Quad I/O interface and operates at 133 MHz. Active product status ensures supply continuity. Selection of this part requires verification that the application firmware supports 128Mbit addressing and that the increased memory capacity provides functional benefit.

Frequently Asked Questions (FAQ)

Q: Can the MT25QL128ABA8ESF-0SIT TR be used as a direct replacement for the M25P64-VMF6TP TR?

A: The MT25QL128ABA8ESF-0SIT TR shares identical voltage supply range, operating temperature, package type, and pin count. However, it provides 128Mbit capacity versus 64Mbit in the original part. Direct substitution is possible only if the application firmware supports 128Mbit addressing. The increased memory capacity does not create compatibility issues but requires firmware verification.

Q: What is the difference between SPI and SPI - Quad I/O interfaces?

A: SPI - Quad I/O variants use four data lines instead of one, enabling higher data transfer rates. Devices with SPI - Quad I/O interface remain backward compatible with standard SPI operation when configured in single-line mode. The W25Q64JVSFIQ and MT25QL128ABA8ESF-0SIT TR support both modes, allowing operation in existing SPI-only designs without modification.

Q: Are the Macronix parts (MX25L6406EMI-12G and MX25L6445EMI-10G) suitable for new designs?

A: Both Macronix alternatives carry "Not For New Designs" status, indicating limited long-term availability and potential discontinuation. For new production designs, the W25Q64JVSFIQ (Active status) or MT25QL128ABA8ESF-0SIT TR (Active status) are preferred selections to ensure supply chain continuity.

Q: Do all substitute parts maintain the same package footprint?

A: All listed substitute parts use 16-SOIC packaging with 0.295" width and 7.50mm height, ensuring identical PCB footprint compatibility. No layout modifications are required for mechanical substitution.

Q: What compliance certifications are maintained across all parts?

A: All parts listed maintain ROHS3 compliance and MSL 3 (168 Hours) rating, ensuring regulatory and environmental standard compatibility with the original M25P64-VMF6TP TR.

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