24AA08T-I/ST

Memory IC Overview

The Microchip Technology 24AA08T-I/ST is an 8-Kbit (1K x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire serial interface compatible with I²C. It operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 400 kHz at VCC ≥ 2.5V and 100 kHz at VCC < 2.5V. The device includes a 16-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It offers over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal standby and active currents.
• Hardware write-protect feature allows inhibition of write operations across the entire memory array when the WP pin is tied high.
• Integrated 16-byte page write buffer facilitates efficient sequential data storage within physical page boundaries.
• Schmitt trigger inputs and filter circuits provide noise suppression to ensure reliable operation on noisy buses.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage for sensor calibration values.
• Personal communication devices needing low-power configuration memory.
• Industrial control applications utilizing I²C bus architectures for parameter logging.
• Embedded systems storing user settings or device identification data.

Memory IC Procurement Notes

Verify that the ordering suffix 'ST' corresponds to the TSSOP package type as specified in the datasheet. Confirm the temperature grade 'I' matches the required industrial range of -40°C to +85°C. Ensure the voltage supply design supports the 1.7V minimum threshold for proper functionality. Check for RoHS compliance requirements if applicable to your manufacturing process.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with I²C compatibility is required. The 24AA08 series is suitable for designs operating below 2.5V where the 24LC08B variant would not function. Consider the 24FC08 if higher clock speeds up to 1 MHz are needed across the full voltage range. The TSSOP package is appropriate for surface-mount assembly processes.

Memory IC Part Context

This part belongs to the 24XX08 family of 8-Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC08B and 24FC08, which differ primarily in minimum operating voltage and maximum clock frequency. The 24AA08 specifically targets applications requiring operation down to 1.7V, distinguishing it from the 2.5V minimum 24LC08B.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA08-I/ST, 24AA08-E/ST, 24AA08H-I/ST, 24AA08H-E/ST.