24AA01T-I/SN

Memory IC Overview

The Microchip Technology 24AA01T-I/SN is a 1 Kbit (128 x 8) Electrically Erasable PROM (EEPROM) featuring a 2-wire I²C 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, offering a standby current of 1 µA and an access time of 900 ns. It includes an 8-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead SOIC package and supports industrial temperature ranges.

Memory IC Feature Summary

• Supports bidirectional data transmission over a 2-wire I²C compatible bus protocol
• Features hardware write protection controlled by the WP pin to inhibit memory writes
• Includes an 8-byte page write buffer to optimize sequential data writing operations
• Integrates Schmitt trigger inputs and filter circuits to suppress noise spikes on SDA and SCL lines

Memory IC Applications

• Non-volatile data storage in battery-powered consumer electronics
• Configuration parameter retention in embedded systems
• Device identification and calibration data logging in industrial controllers
• Addressing and setup information storage in peripheral devices

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the 8-lead SOIC package. Confirm the presence of the 'T' suffix denotes tape and reel packaging if required for automated assembly. Ensure the specific revision matches the datasheet DS20001711M for accurate electrical characteristics.

Memory IC Selection Notes

Select this component when a 1 Kbit capacity with I²C interface is required for low-voltage applications down to 1.7V. It is suitable for designs needing hardware write protection and high endurance. Consider alternatives like the 24FC01 series if higher clock speeds up to 1 MHz are necessary, or the 24LC01B if the minimum operating voltage requirement is strictly 2.5V.

Memory IC Part Context

This part belongs to the Microchip 24XX01 family of 1 Kbit serial EEPROMs. It shares functional similarities with the 24LC01B and 24FC01, differing primarily in operating voltage ranges and maximum clock frequencies. The 24AA01 variant is optimized for operation at lower voltages compared to the 24LC01B, while offering standard I²C speeds unlike the high-speed 24FC01.

Memory IC Replacement Considerations

Direct substitutes within the same package and speed include other 24AA01 variants with different suffixes for temperature or packaging. For higher speed requirements, the 24FC01 series may be considered if voltage compatibility allows. Cross-referencing with the 24LC01B requires verifying the minimum supply voltage constraints.