The 25AA320AT-I/ST is a 32K SPI Serial EEPROM designed and manufactured by Microchip Technology, a leading provider of microcontroller and analog semiconductors. This device offers a versatile storage solution for a wide range of applications that require data storage and retrieval without the need for a battery to maintain the data integrity.

Key Features

• Memory Size: 32K bits (4K x 8)
• Interface Type: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 1.8V to 5.5V, which allows for use in both 3.3V and 5V systems
• Temperature Range: Industrial (-40°C to +85°C), providing reliable operation under extreme conditions
• Packaging: 8-pin TSSOP (Thin Shrink Small Outline Package), which is suitable for space-constrained applications
• Write Cycle Time: 5 ms (max), enabling efficient write operations
• Endurance: 1 million erase/write cycles, ensuring a long operational lifespan
• Data Retention: 100 years, offering a robust storage solution over time

Applications

The 25AA320AT-I/ST is designed for applications that require low-density non-volatile memory. Its robust feature set makes it ideal for use in:

• Embedded systems
• Consumer electronics
• Industrial automation
• Automotive systems
• Networking devices
• Medical devices

Advantages

One of the main advantages of the 25AA320AT-I/ST is its SPI interface, which allows for high-speed data transfer while maintaining low power consumption. The device also features a write protect pin to prevent inadvertent writes, which is crucial for data integrity. Additionally, the small form factor and wide voltage range make it an excellent choice for a variety of design needs.

Whether you are designing a simple data logging system or a complex industrial control unit, the 25AA320AT-I/ST from Microchip Technology provides a reliable and cost-effective solution for your non-volatile memory needs.