24LC64T-I/OT is a 64Kbit industrial-grade I2C serial EEPROM launched by Microchip Technology, organized as 8K×8-bit memory array, housed in ultra-small 5-pin SOT-23 surface-mount package. Manufactured with low-power CMOS process, it supports wide supply voltage range from 2.5V to 5.5V, compatible with standard 2-wire I2C bus up to 400kHz clock speed. Integrated with 32-byte page write buffer, hardware write-protect pin and Schmitt trigger input noise suppression circuit, it features 1 million erase/write cycles endurance and over 200 years data retention. Suffix definition: T=Tape & reel packaging; I=Industrial temperature grade; OT=Lead-free 7-inch tape reel for SOT-23-5. With tiny form factor and minimal peripheral components, it is ideal for space-limited industrial control, consumer electronics and compact MCU boards to store non-volatile data such as configuration parameters, device unique ID and fault logs.

1. Manufacturer: Microchip Technology Inc. 2. Device Type: I2C 2-wire serial Electrically Erasable PROM (EEPROM) 3. Memory Density: 64Kbit (8K×8 Bytes, total 8KB storage) 4. Communication Interface: Standard I2C 2-wire bus, max clock 400kHz, backward compatible with 100kHz 5. Package Form: SOT-23-5 (SC-74A), ultra-small 5-pin SMD package 6. Supply Voltage: Single supply 2.5V ~ 5.5V 7. Current Consumption: Typical standby current 1μA, typical active current 1mA 8. Page Write Buffer: 32 Bytes per page, typical page write cycle 5ms 9. Endurance: ≥1,000,000 page erase/write cycles 10. Data Retention: Minimum 200 years at ambient temperature 11. Temperature Grade: Industrial grade, operating range -40℃ ~ +85℃ 12. Hardware Protection: WP pin for full array write lockout; ESD protection ≥4000V 13. Bus Cascading: Address pins allow up to 8 devices on single I2C bus 14. Random Access Time: 900ns 15. Compliance: RoHS lead-free, halogen-free 16. Packaging: 7-inch tape & reel, standard reel quantity 3000 pcs

1. Ultra-compact SOT-23-5 package for space-saving 5-pin tiny SMD footprint, much smaller than SOIC-8 package, perfect for compact PCBs like miniature sensor modules, wearable devices and mini controllers. 2. Wide voltage & low-power CMOS design Stable operation down to 2.5V, only 1μA standby quiescent current, greatly extending battery life for portable battery-powered equipment. 3. High-speed I2C bus with 32-byte page write buffer Supports up to 400kHz fast-mode I2C; up to 32 bytes continuous write per page, drastically reducing write latency for mass configuration storage. 4. Hardware full-array write protection Dedicated WP pin locks entire memory into read-only state when pulled high, preventing accidental erasure and parameter corruption from EMI noise. 5. Robust anti-interference circuit Schmitt trigger inputs filter bus noise; output slew rate control eliminates ground bounce; built-in 4kV ESD protection for harsh industrial electromagnetic environments. 6. Multi-device cascading capability 3 address pins support up to 8 identical EEPROMs on one single I2C bus, expanding total storage up to 512Kbit. 7. Ultra-long endurance & data retention 1 million erase/write cycles and 200-year non-volatile data storage, suitable for factory calibration data and long-term fault log recording. 8. Minimal peripheral & easy development Only two pull-up resistors required for bus hardware; compatible with universal I2C driver libraries for all mainstream MCUs, low development cost.

1. Industrial Control Equipment PLC remote IO modules, servo drives, sensor transmitters, for storing calibration parameters, device address and runtime fault logs 2. Compact Embedded MCU Boards Bluetooth/Wi-Fi modules, miniature data acquisition boards, security cameras, to store network configuration and unique device SN 3. Battery-Powered Portable Devices Smart wearables, handheld testers, wireless remote controllers, low-power standby storage for user settings and working status 4. Home Appliance & Smart Home Controllers Air conditioners, water purifiers, smart switches, storing gear parameters, fault codes and factory calibration data 5. Automotive Interior Low-Voltage Control Modules In-car lamp, window ECU and instrument auxiliary storage (only for interior environment up to 85℃; automotive Grade1 model required for engine compartment) 6. Communication & Network Devices Small switches, gateways, serial converter modules, for saving MAC address and communication protocol configurations