24AA01-I/SN

Memory IC Overview

The Microchip Technology 24AA01-I/SN is a 1 Kbit (128 x 8) Electrically Erasable PROM (EEPROM) 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, offering a standby current of 1 µA maximum and an operating current of 1 mA maximum. 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 supports industrial temperature ranges (-40°C to +85°C) and provides over one million erase/write cycles with data retention exceeding 200 years.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication protocol with up to 400 kHz clock frequency compatibility
• Features an 8-byte page write buffer for efficient sequential data storage operations
• Includes hardware write protection controlled by the WP pin to inhibit memory writes when tied high
• Integrates Schmitt trigger inputs and filter circuits to suppress noise spikes on the SCL and SDA lines

Memory IC Applications

• Low-voltage embedded systems requiring non-volatile data storage
• Industrial control applications operating within specified temperature ranges
• Battery-powered devices utilizing low standby current modes
• Systems requiring hardware-level write protection for critical configuration data

Memory IC Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure the selected variant matches the required voltage range and interface speed for your application design. Cross-reference datasheet revision numbers to guarantee accurate electrical characteristics and timing parameters are applied during implementation.

Memory IC Selection Notes

Select this component for designs requiring a compact 1 Kbit EEPROM solution with standard I2C connectivity. Consider the 1.7V minimum operating voltage for low-power applications compared to higher voltage alternatives. Evaluate the 8-byte page buffer size relative to expected write patterns to optimize bus throughput and manage internal write cycle timing constraints effectively.

Memory IC Part Context

This part belongs to the 24XX01 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC01B and 24FC01, which share similar architectural features but differ in voltage specifications and maximum clock frequencies. The 24AA01 specifically targets applications needing operation down to 1.7V with 400 kHz support.

Memory IC Replacement Considerations

Compatible substitutes include the 24AA01HT-I/SN and 24AA014HT-I/SN, which offer identical functional specifications and pinouts. Verify that any replacement maintains the same 8-SOIC package dimensions and electrical characteristics to ensure direct interchangeability without circuit redesign.