W25Q128JVSJM

Memory IC Overview

The W25Q128JVSJM is a 128M-bit (16M x 8) NOR Flash memory device from Winbond Electronics, designed for systems with limited space and power. It operates on a single 2.7V to 3.6V supply and supports Standard SPI, Dual SPI, Quad SPI, QPI, and DTR interfaces with clock frequencies up to 133MHz. The memory array consists of 4096 uniform 4KB sectors and 256 erasable blocks. It features advanced security including hardware write protection, individual block locking, and three 256-byte security registers with OTP locks. The device includes a 64-bit unique serial number and SFDP support.

Memory IC Feature Summary

• Supports Double Transfer Rate (DTR) read operations alongside standard, dual, and quad SPI modes for high-speed data transfer.
• Provides flexible architecture with uniform 4KB sector erase capability suitable for parameter storage.
• Includes comprehensive security features such as hardware write protect pins, individual block/sector lock mechanisms, and OTP-protected security registers.
• Offers low power consumption with standby current as low as 1µA and wide temperature range operation.

Memory IC Applications

• Code shadowing to RAM
• Execute In Place (XIP) applications via Dual/Quad SPI
• Storage of voice, text, and data in embedded systems

Memory IC Procurement Notes

Verify the specific suffix 'JM' against official Winbond documentation to confirm package type and temperature grade, as datasheets list S, P, E, F, B, and C codes. Ensure compatibility with DTR interface requirements if utilizing maximum throughput. Confirm RoHS compliance status through manufacturer certificates.

Memory IC Selection Notes

Select this component when high-density storage is required in compact packages. Consider the W25Q128JV series for designs needing DTR support or specific industrial temperature ranges. Evaluate pin configurations across SOIC, WSON, and TFBGA options based on board layout constraints.

Memory IC Part Context

This part belongs to the W25Q128JV SpiFlash family, which provides 128M-bit capacity. The series is characterized by its flexibility in interface modes and robust security features. It is positioned as a high-performance solution compared to ordinary serial flash devices, supporting various packaging options for diverse application needs.

Memory IC Replacement Considerations

W25Q128JVSIM

Memory IC FAQ

What is the function of the /RESET pin on different packages?

On 8-pin packages, the IO3 pin can be configured as /HOLD or /RESET via the Status Register. On 16-pin SOIC and TFBGA packages, a dedicated /RESET pin is provided independent of the QE bit setting.

How does the device handle write protection?

It supports software and hardware write protection. Hardware protection uses the /WP pin, while software protection utilizes volatile and non-volatile bits in the Status Register for top/bottom, complement, and individual block protection.