W25Q64CVWS Equivalent & Substitute Parts

Part Overview

The W25Q64CVWS is a 64Mbit NOR Flash memory integrated circuit featuring SPI and Quad I/O interface capabilities. This device operates at 80 MHz clock frequency with 6 nanosecond access time and supports supply voltages from 2.7V to 3.6V across an operating temperature range of -40°C to 125°C. The W25Q64CVWS is classified as obsolete, necessitating identification of functionally compatible alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Memory Size	64Mbit
Memory Organization	8M x 8
Memory Interface	SPI - Quad I/O
Technology	FLASH - NOR
Clock Frequency	80 MHz
Access Time	6 ns
Voltage Supply Range	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 125°C
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the W25Q64CVWS are identified based on electrical and mechanical compatibility within the SpiFlash® product family. The primary substitution criteria are:

Core Compatibility Parameters:

Memory Size: 64Mbit (identical)
Memory Organization: 8M x 8 (identical)
Memory Interface: SPI - Quad I/O (identical)
Technology: FLASH - NOR (identical)
Voltage Supply Range: 2.7V ~ 3.6V (identical)
Operating Temperature: -40°C ~ 125°C (identical)
Access Time: 6 ns (identical)
Moisture Sensitivity Level: 3 (168 Hours) (identical)

Substitute parts may operate at higher clock frequencies while maintaining backward compatibility with the original electrical and mechanical specifications. Parts meeting all core compatibility parameters are classified as direct substitutes.

Parameter Comparison

Parameter	W25Q64CVWS (Main)	W25Q64JVWS (Substitute)
Manufacturer	Winbond Electronics	Winbond Electronics
Memory Size	64Mbit	64Mbit
Memory Organization	8M x 8	8M x 8
Memory Interface	SPI - Quad I/O	SPI - Quad I/O
Technology	FLASH - NOR	FLASH - NOR
Clock Frequency	80 MHz	133 MHz
Access Time	6 ns	6 ns
Voltage Supply Range	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active
Series	SpiFlash®	SpiFlash®

Engineering Selection Recommendations

The W25Q64JVWS serves as a direct substitute for the W25Q64CVWS in applications requiring 64Mbit SPI Quad I/O Flash memory. The substitute part maintains identical memory capacity, organization, interface protocol, voltage specifications, temperature range, and access time characteristics. The W25Q64JVWS operates at 133 MHz clock frequency compared to the 80 MHz specification of the original part, providing enhanced performance capability while remaining fully compatible with existing electrical and mechanical requirements.

The W25Q64CVWS is classified as obsolete, whereas the W25Q64JVWS maintains active product status with current manufacturing availability. Both devices comply with REACH regulations and carry identical Moisture Sensitivity Level ratings. Selection of the W25Q64JVWS eliminates obsolescence risk while maintaining full functional compatibility with designs originally specified for the W25Q64CVWS.

Frequently Asked Questions (FAQ)

Q: Can the W25Q64JVWS directly replace the W25Q64CVWS in existing circuit designs?

A: Yes. The W25Q64JVWS maintains identical memory capacity (64Mbit), organization (8M x 8), interface type (SPI - Quad I/O), voltage supply range (2.7V ~ 3.6V), operating temperature range (-40°C ~ 125°C), and access time (6 ns). The higher clock frequency (133 MHz versus 80 MHz) does not create incompatibility; the substitute operates at a higher performance level while remaining backward compatible.

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

A: The W25Q64JVWS operates at 133 MHz clock frequency compared to the 80 MHz specification of the W25Q64CVWS. All other electrical and mechanical parameters remain identical. The W25Q64CVWS is obsolete; the W25Q64JVWS is in active production.

Q: Are there packaging differences between the W25Q64CVWS and W25Q64JVWS?

A: Packaging information is not provided in the available technical specifications for either part. Consult the respective device datasheets for detailed package and pinout information.

Q: What is the write cycle time for the W25Q64JVWS?

A: The page write cycle time for the W25Q64JVWS is 3 milliseconds, consistent with standard SpiFlash® device specifications.

Q: Are both parts compliant with REACH regulations?

A: Yes. Both the W25Q64CVWS and W25Q64JVWS are classified as REACH Unaffected.

Q: What is the Moisture Sensitivity Level for these devices?

A: Both parts carry Moisture Sensitivity Level 3 with a 168-hour specification window, indicating identical moisture handling requirements during storage and assembly.

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