Microchip Technology

11AA020-I/MS

11AA020-I/MS Description

The 11AA020-I/MS from Microchip Technology is a 2Kbit (256 x 8) Serial EEPROM designed for low-power, high-reliability applications. Housed in an 8-pin MSOP surface-mount package, it operates across a wide voltage range (1.8V to 5.5V), making it compatible with both 3.3V and 5V systems. This Single-Wire Interface EEPROM supports a 100 kHz clock frequency, ensuring efficient data transfer while minimizing power consumption. With a 5ms write cycle time for word or page operations, it balances speed and endurance, ideal for frequent updates. The device is RoHS3 compliant, REACH unaffected, and rated MSL 1 (Unlimited), ensuring environmental and handling reliability.

11AA020-I/MS Features

• Memory Size & Organization: 2Kbit (256 bytes x 8) for compact yet flexible storage.
• Single-Wire Interface: Simplifies PCB design and reduces pin count vs. I²C/SPI alternatives.
• Wide Voltage Range (1.8V–5.5V): Seamless integration into mixed-voltage systems.
• Low Power Consumption: Optimized for battery-powered and portable devices.
• Fast Write Cycle (5ms): Enhances performance in applications requiring frequent writes.
• Industrial Robustness: -40°C to +85°C operational range, with 1 million write-cycle endurance.
• RoHS3/REACH Compliant: Meets stringent environmental standards.

11AA020-I/MS Applications

• Consumer Electronics: Configuration storage in smart home devices, wearables.
• Industrial Systems: Parameter logging in sensors, PLCs, and control modules.
• Automotive: Non-volatile memory for infotainment, telematics (within non-safety-critical zones).
• Medical Devices: Calibration data storage in portable diagnostic equipment.
• IoT Edge Devices: Low-footprint memory for firmware/configuration backup in constrained designs.

Conclusion of 11AA020-I/MS

The 11AA020-I/MS stands out for its simplicity (Single-Wire Interface), wide voltage compatibility, and endurance, making it a versatile choice for space- and power-constrained designs. Its 5ms write speed and 1.8V–5.5V range outperform many legacy EEPROMs, while the MSOP-8 package suits high-density PCBs. Whether for IoT nodes, industrial controls, or consumer gadgets, this EEPROM delivers reliable non-volatile memory with minimal design overhead.