Microchip Technology

25AA640A-E/ST  

Memory ICs Products

25AA640A-E/ST Description

The 25AA640A-E/ST is a high-performance, 64Kbit EEPROM memory IC chip designed for a wide range of applications requiring reliable and efficient data storage. Manufactured by Microchip Technology, this device features an 8K x 8 memory organization, providing a total memory size of 64Kbit. It operates with a supply voltage range of 1.8V to 5.5V, making it versatile for various electronic systems. The 25AA640A-E/ST supports a clock frequency of up to 10 MHz, ensuring fast data transfer rates through its SPI memory interface. This surface-mount device is housed in an 8TSSOP package and is available in tube packaging, facilitating easy integration into modern circuit designs. With a write cycle time of 5ms for both word and page operations, the 25AA640A-E/ST offers efficient data writing capabilities. Its moisture sensitivity level is rated at MSL 1 (Unlimited), ensuring robustness in various environmental conditions. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards.

25AA640A-E/ST Features

• Memory Capacity and Organization: The 25AA640A-E/ST provides a memory size of 64Kbit, organized as 8K x 8, offering ample storage for data-intensive applications.
• Wide Operating Voltage Range: With a supply voltage range of 1.8V to 5.5V, this EEPROM is suitable for a variety of electronic systems, from low-power devices to higher voltage applications.
• Fast Data Transfer: Supporting a clock frequency of up to 10 MHz, the 25AA640A-E/ST ensures rapid data transfer through its SPI interface, enhancing overall system performance.
• Efficient Write Cycle Time: The device boasts a write cycle time of 5ms for both word and page operations, enabling quick data updates and storage.
• Surface-Mount Technology: The 8TSSOP package and surface-mount type make the 25AA640A-E/ST ideal for compact and high-density circuit board designs.
• Environmental Compliance: The 25AA640A-E/ST is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for global use.
• Moisture Sensitivity Level: Rated at MSL 1 (Unlimited), this device is robust against moisture, making it suitable for a wide range of operating environments.
• Programmability: While DigiKey programmability is not verified, the device can be programmed using standard EEPROM programming techniques, providing flexibility in data storage and retrieval.

25AA640A-E/ST Applications

The 25AA640A-E/ST is ideal for applications requiring reliable, non-volatile memory storage. Its key applications include:

• Embedded Systems: Ideal for storing configuration data, firmware, and other critical information in embedded systems.
• Consumer Electronics: Suitable for devices such as smart meters, gaming consoles, and digital cameras where data retention is crucial.
• Industrial Automation: Used in programmable logic controllers (PLCs) and other industrial equipment for storing calibration data and operational parameters.
• Telecommunications: Ideal for storing network configuration settings and other critical data in communication devices.
• Automotive Electronics: Suitable for automotive control units and infotainment systems where data integrity and reliability are paramount.

Conclusion of 25AA640A-E/ST

The 25AA640A-E/ST is a versatile and reliable EEPROM memory IC chip that offers a combination of high memory capacity, fast data transfer rates, and efficient write cycle times. Its wide operating voltage range, surface-mount package, and environmental compliance make it suitable for a variety of applications across different industries. Whether used in embedded systems, consumer electronics, industrial automation, telecommunications, or automotive electronics, the 25AA640A-E/ST provides a robust and efficient solution for non-volatile data storage.

25AA640A-E/ST Documents

Download datasheets and manufacturer documentation for 25AA640A-E/ST

PCN Assembly/Origin :

Bond Wire 28/Mar/2022      

Datasheets :

25AA640A, 25LC640A      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

25AA640A Development Tool Selector      

PCN Design/Specification :

25AA640A/25LC640A 30/Jun/2021      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH