Microchip Technology

25AA040AT-I/ST

25AA040AT-I/ST Description

The 25AA040AT-I/ST from Microchip Technology is a 4Kbit (512 x 8) SPI Serial EEPROM designed for high-performance, low-power embedded systems. Operating within a 1.8V to 5.5V supply range, it supports SPI interface clock frequencies up to 10 MHz, ensuring fast data transfer. With a 5ms write cycle time for word or page operations, it offers reliable non-volatile storage for applications requiring frequent updates. Packaged in an 8-pin TSSOP and delivered in Tape & Reel (TR), it is optimized for surface-mount assembly and complies with ROHS3 and REACH environmental standards.

25AA040AT-I/ST Features

• Memory Size & Organization: 4Kbit (512 bytes x 8) for flexible data storage.
• Wide Voltage Range: Operates from 1.8V to 5.5V, making it compatible with both 3.3V and 5V systems.
• High-Speed SPI Interface: Supports 10 MHz clock frequency for rapid read/write operations.
• Low Write Time: 5ms word/page write cycle enhances efficiency in dynamic applications.
• Robust Packaging: 8-TSSOP with MSL 1 (Unlimited) rating ensures durability and ease of handling.
• Environmental Compliance: ROHS3 and REACH Unaffected, suitable for eco-conscious designs.

25AA040AT-I/ST Applications

• Consumer Electronics: Configuration storage in smart devices, IoT sensors, and wearables.
• Industrial Systems: Parameter logging in PLCs, motor control, and automation equipment.
• Automotive: Non-volatile memory for infotainment, telematics, and ECU settings.
• Medical Devices: Secure data retention in portable diagnostics and patient monitors.
• Embedded Systems: Firmware backup, calibration data, and event logging in microcontrollers.

Conclusion of 25AA040AT-I/ST

The 25AA040AT-I/ST stands out for its low-voltage operation, high-speed SPI interface, and compact form factor, making it ideal for space-constrained, power-sensitive designs. Its fast write cycle and broad compatibility cater to diverse applications, from consumer gadgets to industrial systems. With Microchip’s reliability and adherence to environmental standards, this EEPROM is a robust choice for modern electronic designs requiring efficient, non-volatile memory.