Replacing the MB85RS2M/FM25V20, the GXSC GX25C20 Is Applied to Medical Monitors

As medical devices become increasingly powerful and sophisticated, they greatly improve accuracy, reliability, connectivity, and ease of use while also ensuring the security of users‘ health information. These advanced functions require stronger processing capability, security, and connectivity, and they also increase the memory requirements of data storage systems. Because EEPROM and flash have limited write-cycle endurance, some medical devices need to reliably store data logs that are updated at any time.

The GXSC GX25C20 adopts an advanced ferroelectric process and silicon-gate CMOS process. Its memory cells can be used for 1E11 read/write operations. Its read/write endurance greatly exceeds that of FLASH and EEPROM, and it does not require the long data write times that FLASH or EEPROM need. Such endurance enables the device to record more data without implementing complex wear-leveling algorithms and without providing excessive additional capacity.

Non-volatility is another important feature of the GX25C20. EEPROM and flash require additional page program/page write cycles, while the instant non-volatility of the GX25C20 allows medical instrument systems to be powered down completely, or to switch the system to low-power standby mode more quickly. The reduction in operating current can significantly extend the system‘s battery service life. In addition, in applications with precise timing requirements, there is no need to worry about power failure.

The performance parameters of the GX25C20 are as follows:

• Capacity: 2M bit, providing an SPI interface;

• Operating frequency: 25 MHz;

• High-speed read feature: supports a 40MHz high-speed read command;

• Operating ambient temperature range: -40℃ to 85℃;

• Package types: SOP8 150mil package, SOP8 208mil package, RoHS compliant

• Performance compatible with MB85RS2MT (Fujitsu) and FM25V20A (Cypress)