24LC025-I/ST

Memory IC Overview

The Microchip Technology 24LC025-I/ST is a 2 Kbit (256 x 8) Serial Electrically Erasable PROM utilizing low-power CMOS technology. It operates on a single supply voltage ranging from 2.5V to 5.5V and features a 2-wire I²C compatible serial interface with a maximum clock frequency of 400 kHz. The device includes a 16-byte page write buffer, hardware write protection capabilities, and Schmitt trigger inputs for noise suppression. It supports industrial temperature ranges (-40°C to +85°C) and offers data retention exceeding 200 years.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication protocol compatible with standard I²C bus specifications.
• Includes a 16-byte page write buffer to optimize data transfer efficiency during memory programming operations.
• Features Schmitt trigger inputs and output slope control to suppress noise spikes and eliminate ground bounce effects.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage for sensor calibration parameters
• Personal communications devices needing compact memory for configuration settings
• Industrial control applications storing operational logs or system status information

Memory IC Procurement Notes

Verify the specific suffix 'I/ST' corresponds to the Industrial temperature grade and TSSOP-8 package type. Confirm that the application voltage remains within the 2.5V to 5.5V range, as this variant does not support operation below 2.5V unlike the 24AA series. Ensure the design accounts for the absence of a hardware write-protect pin on this specific model.

Memory IC Selection Notes

Select this component when a 2Kbit capacity is required with I²C connectivity and operation above 2.5V. It is suitable for designs prioritizing low standby current and robust noise immunity via Schmitt triggers. Consider alternative models if sub-2.5V operation or hardware write protection is mandatory for the specific application requirements.

Memory IC Part Context

This part belongs to the 24AA024/24LC024/24AA025/24LC025 family of 2Kbit Serial EEPROMs. While sharing similar interfaces and capacities, the 24LC025 differs from the 24AA025 primarily in its minimum operating voltage requirement of 2.5V compared to 1.7V. It also lacks the dedicated hardware write-protect pin found on the 24XX024 variants.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24LC025T-I/ST, 24LC025-I/SN, 24LC025-I/MS.