The KM28C256-20 is a high-speed, low-power 256K-bit CMOS electrically erasable and programmable read-only memory (EEPROM) manufactured by Samsung. It's organized as 32K x 8 bits, offering a convenient memory solution for various embedded systems and data storage applications. This EEPROM provides non-volatile storage, meaning data is retained even when power is removed.

Applications

• Embedded Systems: Used for storing configuration data, boot code, and firmware in embedded systems like industrial controllers, automotive electronics, and consumer devices.
• Data Logging: Implemented in data loggers to store sensor readings, system events, and other types of data over extended periods without power.
• Instrumentation: Utilized in test and measurement equipment for storing calibration data, program settings, and measurement results.
• Telecommunications: Integrated into telecommunication devices for storing network parameters, configuration settings, and subscriber information.
• Medical Devices: Used in medical instruments for storing patient data, device settings, and diagnostic information.

Features

• High-Speed Access Time: Offers a 200ns access time, enabling fast data retrieval and program execution.
• Low Power Consumption: Consumes minimal power during operation and standby mode, making it suitable for battery-powered applications.
• Electrically Erasable and Programmable: Allows for easy in-system programming and reprogramming, simplifying firmware updates and data modifications.
• CMOS Technology: Fabricated using CMOS technology, providing high performance, low power consumption, and excellent noise immunity.
• JEDEC Standard Pinout: Adheres to the JEDEC standard pinout, ensuring compatibility with other memory devices and simplifying system design.

Benefits

• Reliable Data Storage: Provides non-volatile storage, ensuring data integrity and retention even in the event of power loss.
• Simplified Firmware Updates: Enables easy in-system programming and reprogramming, simplifying firmware updates and product customization.
• Low Power Consumption: Reduces power consumption, extending battery life in portable devices and minimizing energy costs in stationary applications.
• Fast Access Time: Allows for quick data retrieval and program execution, improving system performance and responsiveness.
• Cost-Effective Solution: Offers a cost-effective memory solution for various embedded systems and data storage applications.

Additional Details

The KM28C256-20 operates over a wide voltage range, typically 4.5V to 5.5V. It is available in a 28-pin DIP (Dual In-line Package). The device also features a write protection mechanism to prevent accidental data corruption during programming. The endurance is typically rated for 10,000 erase/write cycles per byte, ensuring reliable operation over the product's lifetime.