M25P20-VMP6G Equivalent & Substitute Parts

Part Overview

The M25P20-VMP6G is a 2Mbit NOR Flash memory IC manufactured by Micron Technology Inc., designed for SPI serial interface applications operating at 50 MHz. This component features a 256K x 8 memory organization in an 8-VFQFPN (6x5) surface mount package and operates across a supply voltage range of 2.3V to 3.6V with an operating temperature range of -40°C to 85°C.

The M25P20-VMP6G is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this memory IC.

Key Parameters

Parameter	Value
Memory Size	2Mbit
Memory Format	FLASH
Technology	FLASH - NOR
Memory Organization	256K x 8
Memory Interface	SPI
Clock Frequency	50 MHz
Voltage - Supply	2.3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-VDFN Exposed Pad
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M25P20-VMP6G is determined by strict alignment of the following critical parameters:

Memory Capacity: 2Mbit (256K x 8 organization)
Memory Technology: FLASH - NOR
Serial Interface: SPI protocol
Supply Voltage Range: 2.3V ~ 3.6V (compatible operating window)
Operating Temperature Range: -40°C ~ 85°C
Package Type: 8-pin surface mount with exposed pad (VDFN/WDFN variants)
Compliance: ROHS3 compliant

The W25X20CLZPIG manufactured by Winbond Electronics meets all substitution criteria. While this part operates at a higher clock frequency (104 MHz versus 50 MHz), it maintains full backward compatibility with the M25P20-VMP6G due to SPI protocol flexibility and identical memory capacity, organization, voltage specifications, and temperature range.

Parameter Comparison

Parameter	M25P20-VMP6G (Micron)	W25X20CLZPIG (Winbond)	Compatibility
Memory Size	2Mbit	2Mbit	Identical
Memory Organization	256K x 8	256K x 8	Identical
Memory Format	FLASH	FLASH	Identical
Technology	FLASH - NOR	FLASH	Compatible
Memory Interface	SPI	SPI	Identical
Clock Frequency	50 MHz	104 MHz	Compatible (higher speed)
Voltage - Supply	2.3V ~ 3.6V	2.3V ~ 3.6V	Identical
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	8-VDFN Exposed Pad	8-WDFN Exposed Pad	Compatible (same footprint class)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Product Status	Obsolete	Active	Substitute is active

Engineering Selection Recommendations

The W25X20CLZPIG is a direct functional substitute for the M25P20-VMP6G based on the following engineering criteria:

Compliance & Certification: Both parts maintain ROHS3 compliance and identical electrical specifications across supply voltage and operating temperature ranges, ensuring regulatory and environmental compatibility.

Product Status: The W25X20CLZPIG carries an active product status, providing assured long-term availability and supply chain continuity compared to the obsolete M25P20-VMP6G.

Electrical Compatibility: Identical memory capacity, organization, SPI interface protocol, and voltage specifications ensure direct functional replacement without circuit modification. The higher clock frequency of the W25X20CLZPIG (104 MHz) is backward compatible with designs specified for 50 MHz operation.

Package Compatibility: Both parts utilize 8-pin surface mount packages with exposed pads in the same physical footprint class (6x5mm), supporting direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the W25X20CLZPIG directly replace the M25P20-VMP6G without PCB modifications?

A: Yes. Both parts share identical memory capacity (2Mbit, 256K x 8), SPI interface protocol, supply voltage range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 8-pin surface mount package footprint. No circuit or layout changes are required.

Q: Why does the W25X20CLZPIG operate at 104 MHz while the M25P20-VMP6G operates at 50 MHz?

A: The W25X20CLZPIG is a higher-performance variant of the same memory family. SPI protocol allows operation at lower clock frequencies, making the 104 MHz part fully backward compatible with 50 MHz system designs. The system clock can remain unchanged.

Q: Are there differences in the package designations (VDFN versus WDFN)?

A: VDFN and WDFN are manufacturer-specific designations for equivalent 8-pin surface mount packages with exposed pads. Both maintain the same 6x5mm footprint and pin configuration, ensuring PCB compatibility.

Q: What is the significance of the W25X20CLZPIG being in active product status?

A: Active product status indicates ongoing manufacturing and distribution support. This ensures reliable long-term availability and supply chain stability for the W25X20CLZPIG, addressing the obsolescence of the M25P20-VMP6G.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the M25P20-VMP6G and W25X20CLZPIG maintain ROHS3 compliance, ensuring compatibility with environmental and regulatory requirements.

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