Microchip Technology, Inc. Memory 24CS256T-I/ST

The 24CS256T-I/ST is a 256-Kbit I¬=C serial EEPROM from Quarktwin Technology Ltd., organized as 32,768 x 8 bits. It supports high-speed I¬=C communication at 3.4 MHz and is compatible with standard speeds of 1 MHz, 400 kHz, and 100 kHz. The device allows for byte or page writes of up to 64 bytes and features a self-timed write cycle with a maximum duration of 5 ms. This EEPROM includes a 128-bit preprogrammed serial number for unique identification, along with a user-programmable 64-byte ID page that can be locked for security. It also incorporates built-in error correction code (ECC) logic, enhancing data reliability by correcting single-bit errors during read operations. The operating voltage range is from 1.7V to 5.5V, with low power consumption characteristics, including a maximum write current of 3.0 mA and a standby current of just 1 ¬µA. The 24CS256T-I/ST is designed for high reliability, boasting over one million erase/write cycles and data retention exceeding 200 years. It is RoHS compliant and available in various package types, including 8-lead TSSOP and 5-lead SOT-23, making it suitable for a wide range of consumer, industrial, and automotive applications.