The 25AA040AT-I/OT is a 4Kb SPI bus serial EEPROM from Microchip Technology, designed to provide a robust and reliable non-volatile memory storage solution for a wide range of applications. This particular EEPROM device offers a standard 4Kbit of memory space and utilizes the popular Serial Peripheral Interface (SPI) to facilitate easy integration into various electronic systems.

Key Features

• Memory Size: 4 Kbit (512 x 8)
• Interface Type: Serial SPI (Serial Peripheral Interface)
• Operating Voltage: 1.8V to 5.5V, making it suitable for both low-power and standard applications.
• Speed: Supports clock frequencies up to 10 MHz, enabling fast data transfer rates.
• Temperature Range: Industrial grade with an operating temperature range from -40°C to +85°C.
• Packaging: Available in a compact SOT-23 package, which is ideal for space-constrained applications.
• Write Protection: Features write-protect options to prevent accidental data overwrites and ensure data integrity.
• Endurance: High reliability with a write endurance of 1 million write cycles and a data retention period of over 100 years.

Applications

The 25AA040AT-I/OT EEPROM is versatile and can be used in various applications including:

• Industrial and automotive control systems
• Portable consumer electronics
• Medical devices
• Smart cards
• Data logging systems
• Networking equipment

Advantages

With its robust design and flexible voltage range, the 25AA040AT-I/OT is an excellent choice for designers looking for a memory component that can withstand harsh environments while providing a dependable storage solution. Its small footprint and SPI compatibility make it an ideal choice for applications where board space is at a premium and quick data access is required.

Microchip Technology's commitment to quality ensures that the 25AA040AT-I/OT EEPROM will deliver consistent performance, making it a trusted component for any design engineer's toolkit.