The AT24CM01-XHM-T is a 1Mbit high-capacity I²C serial EEPROM (128KB) from Microchip (formerly Atmel) in industrial TSSOP-8 package. It supports up to 1MHz high-speed I²C interface, wide 1.7V~5.5V operating voltage, million-cycle endurance and long-term data retention. With 256-byte large page write and hardware write protection, it is designed for persistent storage of large-capacity logs, configurations and calibration data in embedded devices.

Memory Capacity: 1Mbit / 128KB (128K×8bit) Interface: I²C, maximum clock 1MHz Supply Voltage: 1.7V～5.5V wide range Package: TSSOP-8 Operating Temperature: -40℃～+85℃ industrial grade Endurance: ≥1,000,000 cycles per address Data Retention: 40 years at 25℃ Page Size: 256Byte, typical page write time 5ms Addressing: 17-bit address for full-range random R/W Protection: WP pin full-chip hardware write protection

1MHz high-speed I²C bus provides much faster R/W speed than traditional 400kHz EEPROMs for large data storage 128KB large capacity supports system running logs, fault records and multi-group calibration parameters Ultra-low voltage operation ensures stable data R/W under battery undervoltage conditions Standard TSSOP-8 package is pin-compatible with mainstream EEPROMs for easy upgrade Unlimited moisture sensitivity level simplifies mass production and SMT processing

Large-capacity operation log and fault data storage for industrial PLCs and smart gateways User parameters, billing records and device status cache for EV chargers and smart meters Permanent storage of medical device calibration curves, sampling data and patient information Small configuration partition and firmware patch storage for embedded Linux devices ---