Microchip Technology

25AA256-I/SM

25AA256-I/SM Description

The 25AA256-I/SM from Microchip Technology is a high-performance 256Kbit (32K x 8) SPI serial EEPROM designed for reliable non-volatile data storage in embedded systems. Operating across a wide voltage range (1.8V to 5.5V), it supports SPI interface with a 10 MHz clock frequency, enabling fast read/write operations. The device features a 5ms write cycle time for word or page writes, ensuring efficient data updates. Packaged in an 8-pin SOIJ tube, it is RoHS3 compliant and rated for MSL 1 (Unlimited), making it suitable for industrial and commercial applications requiring robust, long-term data retention.

25AA256-I/SM Features

• Memory Size & Organization: 256Kbit (32K x 8) for flexible data storage.
• SPI Interface: Supports high-speed communication at 10 MHz.
• Wide Voltage Range: Operates from 1.8V to 5.5V, ideal for low-power and mixed-voltage systems.
• Fast Write Cycle: 5ms word/page write time for efficient updates.
• Extended Endurance: High-reliability EEPROM technology with 100,000+ write cycles.
• Industrial Robustness: REACH unaffected, RoHS3 compliant, and MSL 1 rated for harsh environments.
• Compact Package: 8-pin SOIJ surface-mount design saves board space.

25AA256-I/SM Applications

• Embedded Systems: Configuration storage for microcontrollers and FPGAs.
• Industrial Automation: Parameter storage in sensors, PLCs, and control modules.
• Consumer Electronics: Firmware/calibration data in smart devices, wearables.
• Automotive: Non-volatile logging for infotainment and telematics (non-safety-critical).
• IoT Devices: Secure data retention in edge nodes and gateways.

Conclusion of 25AA256-I/SM

The 25AA256-I/SM stands out for its SPI interface flexibility, wide voltage compatibility, and industrial-grade reliability, making it a superior choice over parallel EEPROMs or flash-based alternatives in space-constrained designs. Its low-power operation and high endurance cater to demanding applications in IoT, automotive, and industrial systems. For engineers seeking a cost-effective, high-performance EEPROM, this Microchip solution delivers optimal balance between speed, durability, and ease of integration.