M25P64-VMF6G Equivalent & Substitute Parts

Part Overview

The M25P64-VMF6G is a 64Mbit NOR Flash memory IC manufactured by Micron Technology Inc., featuring SPI interface operation at 50 MHz. This device is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement. Substitute parts must maintain compatibility across memory capacity, interface protocol, electrical specifications, and physical packaging to ensure direct replacement capability.

Key Parameters

Parameter	M25P64-VMF6G
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 / Case	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the M25P64-VMF6G is determined by the following critical parameters:

Memory Capacity: 64Mbit (non-negotiable)
Memory Organization: 8M x 8 (non-negotiable)
Memory Interface: SPI protocol compatibility (SPI or SPI with extended modes acceptable)
Voltage Supply Range: 2.7V ~ 3.6V (must encompass or match)
Operating Temperature Range: -40°C ~ 85°C (must match or exceed)
Package / Case: 16-SOIC form factor with 0.295" width, 7.50mm (mandatory for PCB compatibility)
Mounting Type: Surface Mount (mandatory)
Compliance: RoHS3 and REACH status alignment

All three substitute parts meet these core substitution criteria. Variations in clock frequency and write cycle time do not preclude substitution, as these represent performance enhancements rather than compatibility barriers.

Parameter Comparison

Parameter	M25P64-VMF6G	MX25L6406EMI-12G	MX25L6445EMI-10G	W25Q64JVSFIQ
Manufacturer	Micron Technology Inc.	Macronix	Macronix	Winbond Electronics
Memory Size	64Mbit	64Mbit	64Mbit	64Mbit
Memory Organization	8M x 8	8M x 8	8M x 8	8M x 8
Memory Interface	SPI	SPI	SPI	SPI - Quad I/O
Clock Frequency	50 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
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Not For New Designs	Not For New Designs	Active

Engineering Selection Recommendations

MX25L6406EMI-12G (Macronix): This part maintains full electrical and mechanical compatibility with the M25P64-VMF6G while offering increased clock frequency (86 MHz). Product status is "Not For New Designs," indicating limited long-term availability. Selection is appropriate for legacy system maintenance where performance enhancement is acceptable.

MX25L6445EMI-10G (Macronix): This part provides the highest performance among Macronix alternatives with 104 MHz clock frequency, maintaining all core compatibility parameters. Product status is "Not For New Designs." This option is suitable for applications requiring improved throughput within existing form factor constraints.

W25Q64JVSFIQ (Winbond Electronics): This part offers the highest clock frequency (133 MHz) and features extended SPI interface capability (Quad I/O mode). Critically, this device maintains Active product status, ensuring ongoing availability and long-term supply chain viability. All electrical and mechanical parameters align with the M25P64-VMF6G. This part is the preferred selection for new procurement and system redesigns.

Frequently Asked Questions (FAQ)

Q: Can MX25L6406EMI-12G or MX25L6445EMI-10G be used as direct replacements for M25P64-VMF6G?

A: Yes. Both Macronix parts maintain identical memory capacity (64Mbit), organization (8M x 8), voltage supply range (2.7V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 16-SOIC packaging. The increased clock frequencies represent performance improvements and do not compromise backward compatibility.

Q: What is the primary advantage of W25Q64JVSFIQ over the Macronix alternatives?

A: W25Q64JVSFIQ maintains Active product status, ensuring continued manufacturing and availability. Additionally, it supports Quad I/O mode for enhanced data throughput (133 MHz) while remaining fully compatible with standard SPI operation required by legacy systems.

Q: Are there any package or pinout differences between these substitute parts?

A: No. All substitute parts use identical 16-SOIC packaging with 0.295" width and 7.50mm height. Pinout compatibility is maintained across all listed alternatives.

Q: Do all substitute parts meet the same compliance requirements as M25P64-VMF6G?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (3, 168 Hours), ensuring compliance with environmental and regulatory standards.

Q: Which substitute part should be selected for new system designs?

A: W25Q64JVSFIQ is the recommended selection for new designs due to its Active product status, ensuring long-term supply availability and manufacturing support.

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