Microchip Technology AT24C256N27 EEPROM

The AT24C256N27 is a 256Kb I²C-compatible EEPROM (Electrically Erasable Programmable Read-Only Memory) device from Microchip Technology, renowned for its reliability and low-power consumption. This non-volatile memory module is part of the AT24Cxx series and is designed to add extra data storage to your microcontroller-based systems.

With a 256-kilobit capacity, the AT24C256N27 is organized as 32,768 words of 8 bits each, allowing for ample storage for your application's configuration parameters, serial numbers, calibration data, and more. Its I²C interface supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) modes, making it versatile for various communication speed requirements.

One of the key features of the AT24C256N27 is its low-voltage operation. It can function within a voltage range of 1.7V to 5.5V, making it suitable for battery-operated and low-power devices. The device's low-power consumption extends battery life in portable applications, while its high endurance allows for one million write cycles with a data retention period of over 100 years, ensuring the safety and longevity of your data.

The AT24C256N27 also includes a write protect pin that, when connected to ground, will prevent accidental writes to the memory, further protecting your stored data. Additionally, the device supports a partial page write operation, which can be useful for modifying specific data blocks without the need to rewrite the entire page, thus optimizing the writing process and reducing overall power consumption.

This EEPROM comes in various package options, including the 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 packages, providing flexibility for different PCB layouts and space constraints.

Whether you're working on a small-scale project or a large industrial application, the Microchip Technology AT24C256N27 EEPROM offers a reliable and efficient solution for your data storage needs. Its robust design and compatibility with a wide range of microcontrollers make it a go-to choice for designers looking for a memory component that is easy to integrate and dependable in performance.