Microchip Technology

25AA040A-I/ST

25AA040A-I/ST Description

The 25AA040A-I/ST from Microchip Technology is a 4Kbit (512 x 8) SPI Serial EEPROM designed for high-performance, low-power data storage applications. Operating within a wide voltage range of 1.8V to 5.5V, it supports SPI interface with a 10 MHz clock frequency, ensuring fast and reliable data transfer. This surface-mount device comes in an 8-pin TSSOP package and is RoHS3 compliant, meeting stringent environmental standards. With a 5ms write cycle time for word or page operations, it offers efficient write performance, making it suitable for applications requiring frequent data updates.

25AA040A-I/ST Features

• Memory Size & Organization: 4Kbit (512 bytes x 8) for flexible data storage.
• SPI Interface: Enables seamless integration with microcontrollers and other SPI-compatible devices.
• Wide Voltage Range (1.8V–5.5V): Supports operation in both low-power and standard voltage systems.
• High-Speed Performance: 10 MHz clock frequency for rapid read/write operations.
• Low Write Cycle Time: 5ms for efficient data updates.
• Robust Packaging: 8-pin TSSOP for compact PCB designs.
• Environmental Compliance: RoHS3 and REACH unaffected, ensuring eco-friendly deployment.
• Extended Temperature Range: Suitable for industrial and automotive environments.

25AA040A-I/ST Applications

• Embedded Systems: Non-volatile storage for configuration data, calibration settings, and firmware updates.
• Consumer Electronics: Parameter storage in smart devices, wearables, and IoT sensors.
• Automotive Systems: Data logging, event recording, and infotainment memory.
• Industrial Control: Storing operational parameters in PLCs, motor controllers, and sensors.
• Medical Devices: Secure storage for patient data and device configurations.

Conclusion of 25AA040A-I/ST

The 25AA040A-I/ST stands out as a reliable, high-speed EEPROM with low-voltage operation and SPI compatibility, making it ideal for diverse embedded and industrial applications. Its compact form factor, fast write cycles, and broad voltage support provide a competitive edge over similar memory ICs. Whether for automotive, consumer, or industrial use, this EEPROM delivers durable, efficient, and scalable non-volatile memory solutions.