The AT25128AN-SQ27T9 is a high-performance, serial electrically erasable programmable read-only memory (EEPROM) module from Microchip Technology, a leading provider of smart, connected, and secure embedded control solutions. This EEPROM device offers a robust storage solution for applications that require data retention and flexible data updates without the need for a full chip erase.

Key Features

• Memory Size: 128-Kbit (16,384 x 8) providing ample space for firmware storage, configuration parameters, or small application data.
• Interface Type: SPI (Serial Peripheral Interface) for high-speed data transfer and simple integration with most microcontrollers.
• Operating Voltage Range: 1.8V to 5.5V, making it suitable for a wide range of applications from battery-powered devices to industrial systems.
• Write Cycle Time: 5 ms write cycle time for efficient data management and fast updates.
• Endurance: 1 million write cycles and 100-year data retention for long-term reliability.
• Temperature Range: Industrial grade with an operating temperature range of -40°C to +85°C, ensuring stable performance under extreme conditions.
• Package: 8-lead SOIC (SQ) package for convenient surface-mount assembly.

Applications

The AT25128AN-SQ27T9 is ideal for a variety of applications where reliable and non-volatile storage is critical. These include:

• Industrial and automotive control systems
• Medical devices
• Smart cards
• Consumer electronics
• Internet of Things (IoT) devices

Product Advantages

Microchip's AT25128AN-SQ27T9 offers designers a combination of durability, energy efficiency, and high-speed data access. With its robust design and compatibility with a wide range of operating voltages and temperatures, this EEPROM is an excellent choice for systems that require non-volatile memory with high endurance and long-term data retention. The SPI interface ensures compatibility with a broad array of microcontrollers, making it a versatile choice for both new designs and upgrades to existing systems.