XTX NOR Flash ensures long-term stable operation of ambulatory blood pressure monitors.

With the increasing emphasis on chronic disease management, ambulatory blood pressure monitors have become vital tools for hypertensive patients' daily monitoring and medical diagnosis. These devices need to continuously record hundreds of blood pressure readings over 24 hours and capture transient blood pressure fluctuations. Their hardware architecture typically consists of sensor modules, a main MCU, wireless communication units, and storage chips. Facing medical equipment's stringent requirements for data integrity, long-term reliability, and low power consumption, traditional EEPROM or NAND Flash have significant limitations: EEPROM's slow write speed (typically over 5ms) struggles to meet real-time data recording needs, while NAND Flash's block erase mechanism and potential bad block risk may cause critical data loss. In contrast, Nor Flash, with its Execute-In-Place (XIP) feature, byte-level programming capability, and high reliability, presents a superior choice. The XIP feature allows the MCU to read and execute code directly from flash memory, significantly improving system response speed; its single-bit rewrite function supports real-time writing of small data amounts without block erasure, greatly optimizing power efficiency; meanwhile, Nor Flash's storage structure fundamentally avoids bad block generation, combined with over 20 years of data retention capability, providing a solid foundation for long-term secure medical data storage.

In ambulatory blood pressure monitors, 128Mbit capacity Nor Flash plays a core role in data storage. This capacity can easily accommodate all raw blood pressure data generated during continuous operation for over 24 hours (including systolic/diastolic pressure, heart rate, timestamps), event markers (such as user-defined activity records), and complete device operation logs and firmware programs. Its core value lies in three aspects: first, high-speed read performance, supporting SPI clock frequencies over 100MHz, ensuring quick retrieval and analysis of historical data when generating comprehensive reports, enhancing user experience; second, excellent power control, with standby current as low as microamp level, and dynamic recording power consumption significantly lower than other storage solutions, crucial for portable medical devices requiring long-term battery operation, effectively extending battery life; third, high endurance, with 100,000 program/erase cycles fully meeting frequent data recording and firmware update needs throughout the device's lifecycle, avoiding premature device failure due to storage unit degradation.

 XTX's XT25F128FWOIGT-W is a 128Mbit serial Nor Flash chip manufactured using advanced process technology, operating voltage range 2.7V to 3.6V, compatible with standard SPI interface, and supporting Dual and Quad SPI modes. In 4-line mode, it achieves clock frequencies up to 133MHz, enabling data transfer rates up to 532Mb/s. The chip's compact WSON-8 package makes it ideal for space-sensitive portable medical device designs. Its key parameters are shown in the table below, fully demonstrating its advantages in ambulatory blood pressure monitor applications: 

Beyond these hardware advantages, the XT25F128FWOIGT-W integrates write protection mechanisms and a unique electronic signature, helping prevent accidental data tampering and facilitating device traceability management. As XTX's authorized agent, MANDU Technology provides comprehensive technical support including chip selection guidance, SPI timing debugging/optimization, free samples, and mass production supply chain support, helping customers shorten development cycles and accelerate product launch.

 For R&D engineers committed to developing high-performance ambulatory blood pressure monitors, choosing XTX's XT25F128FWOIGT-W Nor Flash is a decision that enhances product competitiveness. Its high reliability, low power consumption, and high-speed read characteristics precisely meet medical-grade equipment's extreme requirements for data accuracy and device stability. Through MANDU's professional services, engineers can complete hardware integration and debugging more efficiently, ensuring stable storage system operation. Integrating XTX Nor Flash into ambulatory blood pressure monitors means not just selecting a high-performance storage chip, but instilling the device with "zero data storage errors, zero operational concerns" DNA, helping enterprises build solid technical barriers in competitive markets. 

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

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