11AA010-I/TO

Overview

The Microchip Technology 11AA010-I/TO is a 1 Kbit serial EEPROM featuring a single I/O UNI/O interface. It operates within a voltage range of 1.8V to 5.5V and supports industrial temperatures from -40°C to +85°C. The device utilizes Manchester encoding for data transmission at up to 100 kbps. Key electrical characteristics include a typical active current of 1 mA, maximum standby current of 1 µA, and endurance of 1 million erase/write cycles with over 200 years of data retention.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding
• Features built-in write protection including power-on/off data protection circuits
• Includes Schmitt trigger inputs for noise suppression and output slope control
• Provides block write protection capabilities for array security

Applications

• Microcontroller system configuration storage
• Low-pin-count embedded sensor data logging
• Industrial control parameter retention
• Consumer electronics calibration data storage

Procurement Notes

Verify the specific package suffix 'TO' corresponds to the TO-92 leaded package variant when sourcing. Confirm that the 'I' designation matches the required industrial temperature range specifications for your application environment. Ensure compatibility with the 1.8V minimum supply voltage if operating in low-power modes.

Selection Notes

Select this component for designs requiring minimal pin count and robust noise immunity in industrial environments. The UNI/O interface reduces PCB routing complexity compared to standard SPI or I2C devices. Consider the 1.8V operational capability for battery-powered applications where lower voltage thresholds are necessary for extended life.

Part Context

This device belongs to the 11AA010 series of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 11LC010 but differs in its lower voltage operation starting at 1.8V. The family is designed for cost-sensitive applications requiring reliable non-volatile memory with simple interface requirements.

Replacement Considerations

The 11LC010 is a comparable part within the same family; however, it requires a minimum supply voltage of 2.5V. Verify that the target system voltage remains above 2.5V if substituting. Other 11XX series devices offer different memory densities but maintain compatible interface protocols.