MX25U25643GBJI00

Memory IC Overview

The MX25U25643GBJI00-TR is a 256M-bit Serial NOR Flash memory from Macronix, utilizing the MXSMIO technology. It operates on a single 1.65V to 2.0V power supply and supports SPI Mode 0 and Mode 3 protocols. The device features Single, Dual, and Quad I/O modes with clock frequencies up to 133MHz. It includes DTR support, QPI read/program capabilities, and an execute-in-place (XIP) mode. Memory organization allows for 4K-byte sectors or 32K/64K-byte blocks. It is housed in a WLCSP-32 package.

Memory IC Feature Summary

• Supports Single, Dual, and Quad I/O protocols with configurable dummy cycles for optimized read performance.
• Features advanced security including block lock protection via BP bits and an additional 8K-bit secured OTP area.
• Enables high-speed sequential reads across the entire chip using XIP mode and supports program/erase suspend/resume operations.

Memory IC Applications

• Firmware storage for embedded systems requiring code execution directly from flash.
• Data logging applications needing reliable non-volatile storage with sector-level protection.
• Industrial control systems operating within standard commercial temperature ranges.

Memory IC Procurement Notes

Verify the specific suffix 'JI' corresponds to the WLCSP-32 package and tape-and-reel delivery format as indicated by distributor listings. Confirm RoHS compliance status through official datasheets prior to integration. Ensure voltage levels match the 1.65V to 2.0V operational range specified in the electrical characteristics section of the component documentation.

Memory IC Selection Notes

Select this component when a compact form factor like WLCSP is required alongside high-density 256M-bit storage. It is suitable for designs prioritizing low power consumption due to the 1.8V operation. Consider the 133MHz maximum clock speed for bandwidth requirements. Verify that the system interface supports the necessary SPI modes and command sets for Quad I/O and DTR operations if high throughput is needed.

Memory IC Part Context

This part belongs to the Macronix MX25U series of 1.8V Serial NOR Flash memories. The MX25U25643G family provides various package options including SOP, BGA, WSON, and WLCSP. The GB suffix typically denotes the specific pinout and package type within this density class, distinguishing it from other variants like the GMI or GXDI packages found in the same product line.

Memory IC Replacement Considerations

MX25U25643GXDI00

Memory IC FAQ

Does the MX25U25643GBJI00 support Double Transfer Rate (DTR) mode?

Yes, the device supports DTR mode, allowing data transfer on both rising and falling edges of the clock signal to enhance read speeds.

What is the purpose of the 8K-bit Secured OTP?

The 8K-bit Secured One-Time Programmable memory provides a unique identifier area that can be programmed by the factory or locked down by the customer for security purposes.