W25Q256FVFAQ Equivalent & Substitute Parts

Part Overview

The W25Q256FVFAQ is a 256Mbit NOR Flash memory IC manufactured by Winbond Electronics, designed for SPI and Quad I/O applications. This device features a 16-SOIC surface mount package and operates across a supply voltage range of 2.7V to 3.6V with an operating temperature range of -40°C to 105°C. The W25Q256FVFAQ is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this memory technology.

Substiute Parts

W25Q256FVFAQ

Winbond ElectronicsIn Stock: 4234W25Q256FVFAQ Datasheet

Current PartRFQ

W25Q256JVFAQ

Winbond ElectronicsIn Stock: 1143W25Q256JVFAQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the W25Q256FVFAQ is determined by strict equivalence across the following critical parameters:

Memory Capacity & Organization: The substitute part must maintain 256Mbit capacity with 32M x 8 organization to ensure direct functional compatibility with existing firmware and memory mapping schemes.

Package & Mounting: The 16-SOIC surface mount package with 0.295" (7.50mm) width is a mandatory requirement for PCB layout compatibility and assembly process alignment.

Electrical Specifications: Supply voltage range of 2.7V to 3.6V and operating temperature range of -40°C to 105°C must be maintained to ensure operation within the same system power and thermal constraints.

Memory Interface: SPI Quad I/O capability is required to support the communication protocol and data transfer rates specified in the original design.

Technology: FLASH - NOR technology classification ensures consistent memory behavior and programming characteristics.

The W25Q256JVFAQ from Winbond Electronics meets all substitution criteria and is classified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The W25Q256JVFAQ is a direct substitute for the W25Q256FVFAQ based on electrical and mechanical parameter equivalence. The substitute part maintains identical memory capacity, organization, package configuration, supply voltage range, and operating temperature specifications. Both devices are manufactured by Winbond Electronics and share the same FLASH - NOR technology platform.

The W25Q256JVFAQ offers performance improvements over the main part, including increased clock frequency (133 MHz versus 104 MHz) and reduced access time (6 ns versus 7 ns). These enhancements provide superior performance characteristics while maintaining full backward compatibility with existing designs.

The W25Q256JVFAQ holds active product status with current manufacturing support, ensuring long-term supply chain availability and continued technical support. Both parts maintain identical moisture sensitivity levels and REACH compliance status, confirming equivalent environmental and regulatory handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the W25Q256JVFAQ be used as a direct replacement for the W25Q256FVFAQ?

A: Yes. The W25Q256JVFAQ is a direct substitute. Both parts share identical memory capacity (256Mbit), memory organization (32M x 8), package configuration (16-SOIC), supply voltage range (2.7V to 3.6V), and operating temperature range (-40°C to 105°C). The substitute part is pin-compatible and functionally equivalent.

Q: What are the performance differences between these parts?

A: The W25Q256JVFAQ operates at a higher clock frequency (133 MHz versus 104 MHz) and provides faster access time (6 ns versus 7 ns). Page write cycle time remains identical at 3ms. These performance improvements do not affect compatibility with existing designs.

Q: Are there any package or mounting differences?

A: No. Both parts use the identical 16-SOIC surface mount package with 0.295" (7.50mm) width. PCB layout and assembly processes require no modification.

Q: What is the significance of the product status difference?

A: The W25Q256FVFAQ is classified as obsolete, indicating discontinued manufacturing. The W25Q256JVFAQ maintains active product status with current manufacturing support, ensuring reliable supply chain availability for new designs and ongoing production requirements.

Q: Are the electrical specifications identical?

A: Yes. Both parts operate within the same supply voltage range (2.7V to 3.6V) and temperature range (-40°C to 105°C). Moisture sensitivity levels and REACH compliance status are identical.

Q: What is the difference in memory interface specifications?

A: The W25Q256FVFAQ supports SPI - Quad I/O and QPI modes. The W25Q256JVFAQ supports SPI - Quad I/O. Both parts maintain full Quad I/O capability required for standard SPI Flash applications.