10pcs AT24C256 256Kbit I2C EEPROM Module for Arduino Reliable Data Storage 3.3V 5V

AT24C256 256Kbit I2C EEPROM Module Key benefits and why you need it nonvolatile storage capacity for configuration data and calibration values, reducing the need for external memory and simplifying device firmware. Wide voltage compatibility for easy integration into 3.3 V and 5 V systems and lowpower designs, lowering development time and risk. Industrialgrade endurance and long data retention to protect critical system parameters over the product lifecycle. Hardware write protection to prevent accidental overwrites and preserve system integrity. What it does Provides 256 Kbit of I2C EEPROM storage organized for 64byte page write operations. Supports I2C addresses from 0x50 to 0x57 for flexible multidevice configurations on the same bus. Includes a hardware write protect pin to enable or disable write access as needed. Compatibility and electrical performance Operating voltage range: 1.8 V to 5.5 V, compatible with common 3.3 V and 5 V controllers. Low standby current below 1 microampere to extend battery life in portable and remote systems. Designed for reliable operation across industrial temperatures from 40 C to +85 C. Reliability and endurance Endurance greater than 1,000,000 erase/write cycles per byte for longterm repeated use. Data retention of at least 100 years at 25 C, ensuring stored settings remain valid over extended deployments. Practical applications Embedded controllers and IoT devices: Store device settings, network credentials, and runtime state where persistent memory is required across power cycles. Sensor systems and instrumentation: Save calibration coefficients and configuration parameters so sensors remain accurate without repeated field recalibration. Industrial and automotive electronics: Maintain fault logs, serial numbers, and device configuration across harsh temperature ranges and long service intervals. Technical highlights Model: AT24C256 256Kbit Memory organization: 64byte page write mode I2C address range: 0x50 to 0x57 Voltage: 1.8 V to 5.5 V Standby current: less than 1 microampere Endurance: greater than 1,000,000 cycles per byte Data retention: at least 100 years at 25 C Operating temperature: 40 C to +85 C Hardware write protection: WP pin This EEPROM module offers a compact, lowpower solution for reliable nonvolatile storage in embedded and industrial designs, simplifying configuration management and safeguarding critical device data.