24LC256T-I/SN - EEPROM Memory IC 256Kbit I2C 400kHz SOIC-8

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Datasheet

24LC256T-I/SN - 256Kbit I2C EEPROM Memory IC | 400kHz SOIC-8 Package

The 24LC256T-I/SN is a high-performance 256Kbit (32Kx8) Serial EEPROM memory IC from Microchip Technology Inc., designed for low-power and high-reliability applications. This I²C-compatible EEPROM supports both Standard (100 kHz) and Fast (400 kHz) modes, offering seamless integration into modern microcontroller-based systems. Operating within a 2.5 V to 5.5 V supply range, the 24LC256 delivers excellent flexibility across embedded, consumer, and industrial environments. With a 64-byte page write buffer, hardware write-protect pin, and self-timed erase/write cycles, this device ensures reliable and efficient data storage. Its cascadable addressing feature supports up to eight devices on a single bus, providing a total memory space of up to 2 Mbit.

Key Features

• Memory Capacity: 256 Kbit (32Kx8) EEPROM for large non-volatile data storage.
• I2C Interface: Compatible with 100 kHz and 400 kHz clock speeds for flexible integration.
• Wide Voltage Range: Operates from 2.5 V to 5.5 V for low-power embedded applications.
• Write Performance: 64-byte page write buffer with maximum 5 ms self-timed write cycle.
• Hardware Write Protection: Dedicated pin for full memory protection against accidental writes.
• Multi-Device Support: Cascadable up to eight devices on the same I2C bus for up to 2 Mbit address space.
• Power Efficiency: Typical read current of 400 µA and standby current of just 1 µA.
• Noise Immunity: Schmitt trigger inputs suppress noise and output slope control minimizes ground bounce.
• Reliability: ESD protection greater than 4000V ensures robust performance in harsh environments.
• Package Options: Available in SOIC-8, DIP-8, TSSOP, MSOP, and DFN packages.
• Environmental Compliance: Pb-free and RoHS compliant design.