24AA01T/SN

Memory IC Overview

The Microchip Technology 24AA01T/SN is a 1 Kbit (128 x 8) Electrically Erasable PROM featuring a 2-wire I2C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum standby current of 1 µA and an active read current of 1 mA. It includes hardware write protection via the WP pin, supports page writes of up to 8 bytes, and offers over one million erase/write cycles with data retention exceeding 200 years.

Memory IC Feature Summary

• Low-voltage operation down to 1.7V with minimal standby and active power consumption
• Hardware write-protect capability through the dedicated WP pin for array security
• Integrated Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Supports acknowledge polling to maximize bus throughput during internal write cycles

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters
• Industrial control devices needing reliable data logging in noisy environments
• Consumer electronics utilizing low-power memory for calibration data
• Automotive applications requiring AEC-Q100 qualified components

Memory IC Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the 8-lead SOIC package type as specified in the datasheet. Confirm the temperature grade matches the required industrial range (-40°C to +85°C). Ensure the specific revision level aligns with your design requirements, as packaging or marking details may evolve. Cross-reference the manufacturer part number directly with official Microchip documentation to avoid counterfeit risks.

Memory IC Selection Notes

Select this component when a 1 Kbit capacity with I2C compatibility is required within a 1.7V to 5.5V operating range. Choose the 24AA01T/SN variant specifically for its surface-mount SOIC packaging format. Consider this device over the 24LC01B if operation below 2.5V is necessary, as the LC series requires a minimum of 2.5V. Verify that the 400 kHz clock speed meets the system's communication timing constraints.

Memory IC Part Context

This device belongs to the 24XX01 family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24LC01B and 24FC01 but differs in voltage specifications and clock speeds. The 24AA01 series is designed for general-purpose low-voltage applications, while the 24FC01 supports higher frequencies up to 1 MHz. All variants utilize the same 2-wire serial protocol and pinout architecture.

Memory IC Replacement Considerations

The 24LC01BT-I/SN serves as a direct physical replacement if the application voltage remains above 2.5V. For lower voltage operations, verify compatibility with other 24AA01 variants in different packages. No other cross-model substitutes are confirmed for this specific part number without adjusting voltage or performance parameters.