The X25642E is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by Xicor Inc. These devices are commonly used for non-volatile storage of data in a variety of electronic systems. Serial EEPROMs offer a cost-effective and space-efficient solution for storing configuration data, calibration values, and other persistent information.

Applications

• Consumer Electronics: Storage of user preferences, device settings, and firmware updates in TVs, set-top boxes, and audio equipment.
• Industrial Equipment: Configuration data storage in programmable logic controllers (PLCs), motor drives, and industrial sensors.
• Automotive Systems: Storage of calibration data, identification codes, and diagnostic information in electronic control units (ECUs).
• Medical Devices: Storage of calibration parameters, patient data, and configuration settings in medical instruments.
• Telecommunications: Storage of network configuration parameters, security keys, and user data in routers, switches, and modems.

Features

• Non-Volatile Memory: Retains data even when power is removed.
• Serial Interface: Uses a serial interface such as SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit) for communication.
• Low Power Consumption: Designed for low-power operation, suitable for battery-powered devices.
• Write Protection: Offers write protection features to prevent accidental data corruption.
• High Endurance: Capable of withstanding a large number of write/erase cycles.
• Small Package: Available in small packages such as SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package) for space-constrained applications.

Benefits

• Persistent Data Storage: Provides reliable non-volatile storage for critical data.
• Easy Integration: Serial interface simplifies integration with microcontrollers and other digital systems.
• Low Power Consumption: Extends battery life in portable devices.
• Data Protection: Write protection features prevent accidental data loss.
• Long Lifespan: High endurance ensures reliable operation over a long period.

Additional Details

The X25642E operates over a wide voltage range and supports various serial interface speeds. It typically includes features such as page write mode and sector protection to improve performance and reliability. Detailed technical specifications, including memory capacity, operating voltage, and timing characteristics, are available in the product datasheet. Xicor is now part of Intersil/Renesas, so related datasheets and documentation might be found under those names as well.