The NM24C02UM8X is a 2K (256 x 8) Serial EEPROM manufactured by ON Semiconductor (formerly Fairchild Semiconductor). It is a non-volatile memory device that uses a two-wire serial interface for communication, making it suitable for applications requiring low pin count and low power consumption. This EEPROM is commonly used for storing configuration data, calibration settings, and other small amounts of data that need to be retained even when power is off.

Applications

• Consumer Electronics: Storage of user preferences, settings, and calibration data in TVs, set-top boxes, and audio equipment.
• Industrial Control Systems: Storage of configuration parameters, sensor calibration data, and system identification information in programmable logic controllers (PLCs) and other industrial devices.
• Automotive Electronics: Storage of vehicle identification numbers (VIN), diagnostic trouble codes (DTCs), and other vehicle-specific data in automotive control units (ECUs).
• Medical Devices: Storage of calibration data, patient information, and device settings in medical instruments and equipment.
• Smart Cards: Storage of user credentials, security keys, and transaction history in smart cards and secure tokens.

Features

• 2K (256 x 8) EEPROM: Provides 2048 bits of non-volatile storage capacity.
• Two-Wire Serial Interface: Uses I2C (Inter-Integrated Circuit) communication protocol, minimizing pin count and simplifying interfacing with microcontrollers.
• Low Voltage Operation: Operates from a single 1.8V to 5.5V power supply, making it suitable for low-power applications.
• Low Power Consumption: Consumes minimal current during read, write, and standby operations, extending battery life in portable devices.
• Write Protection: Includes a write protect feature to prevent accidental data corruption.
• Self-Timed Write Cycle: Simplifies write operations by automatically timing the write cycle.
• High Endurance: Supports up to 1 million write cycles per byte, ensuring long-term data retention.
• Data Retention: Retains data for up to 100 years.
• Small Package: Available in a compact UM8 package, saving board space.

Benefits

• Non-Volatile Memory: Retains data even when power is off, ensuring reliable storage of critical information.
• Easy to Interface: The two-wire serial interface simplifies communication with microcontrollers and other devices.
• Low Power Consumption: Minimizes power consumption, extending battery life in portable applications.
• High Reliability: Offers high endurance and long data retention, ensuring reliable performance over time.
• Compact Size: The small package saves board space, enabling smaller and lighter electronic devices.
• Write Protection: Prevents accidental data corruption, ensuring data integrity.

Technical Specifications

The NM24C02UM8X EEPROM has the following key specifications:

• Memory Size: 2K (256 x 8)
• Interface: I2C (Two-Wire Serial)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature: -40°C to +85°C
• Write Cycle Time: 5 ms (maximum)
• Data Retention: 100 years
• Endurance: 1,000,000 write cycles per byte
• Package: UM8