onsemi 256 kB Serial EEPROM 900 ns 8-Pin UDFN I2C CAT24C256HU4IGT3

onsemi CAT24C256HU4IGT3 is a 256 kB Serial EEPROM with a fast 900 ns access time in a compact 8-Pin UDFN surface-mount package. This memory chip uses a widely adopted I2C interface supporting standard, fast, and fast-plus modes up to 400 kHz, making it highly compatible for modern electronic systems. Operating across a supply voltage range of 1.8 V to 5.5 V, it offers flexibility for various power environments, including low voltage and automotive applications.

Designed for industrial and automotive environments, this EEPROM operates reliably within temperature extremes from -40°C to 85°C. The device leverages low power CMOS technology to maintain a low 3 mA supply current and offers hardware write protection for secure memory operations. With 1,000,000 program/erase cycles and a data retention period of 100 years, it ensures durability and long-term data integrity, critical for embedded and control systems.

The chip features Schmitt triggers and noise suppression filters on the I2C bus inputs (SCL and SDA) to enhance noise immunity, ensuring stable communication even in electrically noisy environments. Its compact footprint (2 mm x 3 mm x 0.55 mm) in a UDFN package aids efficient board space utilization in high-density designs.

This EEPROM complies with the automotive standard AEC-Q100, certifying its suitability for safety-critical automotive systems and industrial controls. Typical applications include alarm systems, audio players, automotive electronics, cellular phones, graphic cards, industrial controls, notebook PCs, smart phones, telecommunications, and more.

Memory organized as 32K x 8 bits supporting 8-bit words. Supports I2C protocols with maximum clock frequency of 400 kHz. Wide operating voltage from 1.8 V to 5.5 V allows compatibility with various devices. Operating temperature range from -40°C to 85°C supports harsh environment use.

Hardware write protection safeguards entire memory content. Low supply current of 3 mA extends battery life in portable devices. Long data retention of 100 years suitable for critical data storage. Small package size of 2 mm length, 3 mm width, and 550 μm height for compact designs.

Automotive standard AEC-Q100 qualification ensures reliability in automotive applications. This product is a new, Pb-free, halogen-free, and BFR-free component. Explore more onsemiconductor memory modules and EEPROMs in Electroincs & Electricals category at EnvMart.