W25Q256JVEIM

Memory IC Overview

The W25Q256JVEIM is a 256M-bit (32M-byte) serial NOR flash memory from the Winbond W25Q256JV series. It operates on a single 2.7V to 3.6V supply and supports standard, dual, and quad SPI interfaces with clock frequencies up to 133MHz. The device features uniform 4KB sector erase architecture, allowing flexible data storage and parameter management. It includes advanced security features such as hardware write protection, power supply lock-down, and individual block protection. The component is housed in an 8-pad WSON 8x6-mm package and is designed for applications requiring code execution in place (XIP) and high-performance data transfer.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI operations with clock frequencies up to 133MHz
• Features uniform 4KB sector erase architecture for flexible data storage
• Includes advanced security mechanisms like hardware write protection and OTP locks
• Enables execute-in-place (XIP) operation via Quad Peripheral Interface

Memory IC Applications

• Code shadowing to RAM
• Executing code directly from Dual/Quad SPI (XIP)
• Storing voice, text, and data in space-constrained systems

Memory IC Procurement Notes

Verify the specific ordering suffix 'EIM' against the manufacturer's official documentation to confirm the exact package type, temperature range, and tape/reel specifications. Ensure compatibility with system voltage requirements of 2.7V to 3.6V. Confirm that the 8-pad WSON 8x6-mm package dimensions fit the PCB layout constraints. Check for any recent product change notices (PCN) regarding manufacturing sites or materials.

Memory IC Selection Notes

Select this component when a 256M-bit capacity is required with support for high-speed quad SPI transfers. It is suitable for designs needing uniform 4KB sector erasure for efficient parameter storage. Consider the 8-pin WSON package for space-constrained applications where a dedicated reset pin is not mandatory, as this package variant lacks the separate /RESET pin found in SOIC-16 or TFBGA options.

Memory IC Part Context

The W25Q256JVEIM belongs to the W25Q256JV family of SpiFlash memories. This series is engineered to provide flexibility and performance beyond ordinary serial flash devices. The 'JV' designation indicates the 2.7V-3.6V operating voltage range and specific feature set, while the 'WSON' package offers a compact footprint suitable for modern electronic devices.

Memory IC Replacement Considerations

Check for W25Q256JVFIQ (SOIC-16) or W25Q256JVBIM/C (TFBGA) if different packaging is needed. Verify electrical and functional equivalence before substitution.