onsemi

CAT25256XI

CAT25256XI Description

The CAT25256XI from onsemi is a 256Kbit (32K x 8) SPI-compatible EEPROM designed for high-performance, low-power data storage applications. Operating within a wide voltage range of 1.8V to 5.5V, this device is ideal for battery-powered and mixed-voltage systems. With a clock frequency of 20 MHz, it ensures fast data transfer rates, while its 5ms write cycle time (word/page) balances speed and reliability. The SPI interface simplifies integration with microcontrollers and other digital systems. Packaged in an 8-pin SOIC tube, it is suited for surface-mount assembly and complies with REACH and EAR99 regulations.

CAT25256XI Features

• High-Speed SPI Interface: Supports 20 MHz clock frequency for rapid read/write operations.
• Wide Voltage Range: Operates from 1.8V to 5.5V, making it versatile for diverse applications.
• Low Power Consumption: Optimized for energy-efficient designs, ideal for portable electronics.
• Robust Data Retention: EEPROM technology ensures reliable non-volatile storage with high endurance.
• Compact & Reliable: 8-pin SOIC package with MSL 1 (Unlimited) moisture sensitivity, ensuring durability in harsh environments.
• Obsolete Status: While no longer in production, it remains a dependable choice for legacy systems.

CAT25256XI Applications

• Industrial Automation: Stores configuration data in PLCs, sensors, and control systems.
• Consumer Electronics: Used in smart devices, wearables, and IoT modules for parameter storage.
• Automotive Systems: Retains calibration data and event logs in infotainment and telematics.
• Medical Devices: Secures firmware and patient data in portable medical equipment.
• Embedded Systems: Ideal for firmware updates and parameter storage in MCU-based designs.

Conclusion of CAT25256XI

The CAT25256XI is a high-performance EEPROM offering speed, flexibility, and reliability for data storage in demanding applications. Its SPI interface, wide voltage range, and compact form factor make it a strong choice for legacy designs requiring stable non-volatile memory. While marked obsolete, its proven performance ensures continued suitability for industrial, automotive, and consumer applications where durability and efficiency are critical.