24LC025T-I/OT

Memory IC Overview

The Microchip Technology 24LC025T-I/OT is a 2 Kbit (256 x 8) serial EEPROM utilizing an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device features a typical access time of 900 ns and supports page writes up to 16 bytes with a maximum write cycle time of 5 ms. It is housed in a 6-lead SOT-23 package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus for contiguous memory expansion
• Includes Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Features hardware write protection capability via the WP pin, though this specific model lacks internal connection for it

Memory IC Applications

• Data storage in low-power embedded systems
• Configuration parameter retention in microcontroller-based designs
• Device identification and calibration data logging

Memory IC Procurement Notes

Verify that the application design accounts for the absence of a functional hardware write-protect pin on the 24LC025 series, as the WP pin is not internally connected. Confirm that the system power supply strictly adheres to the 2.5V minimum requirement, distinguishing it from the 1.7V capable 24AA025 variant. Ensure the I²C bus pull-up resistors are selected appropriately for the target clock speed to maintain signal integrity.

Memory IC Selection Notes

Select this component when a 2 Kbit non-volatile memory solution is required with a compact 6-lead SOT-23 footprint. It is suitable for applications needing 400 kHz I²C communication speeds and industrial temperature stability. Note that unlike the 24LC024, this device does not support hardware write protection, requiring software-based management for data security.

Memory IC Part Context

This part belongs to the 24AA024/24LC024/24AA025/24LC025 family of 2 Kbit Serial Electrically Erasable PROMs. The 'LC' designation indicates a 2.5V to 5.5V operating voltage range, distinct from the 'AA' series which supports 1.7V. The 'I' suffix denotes the industrial temperature grade, and '/OT' specifies the 6-lead SOT-23 surface-mount package available exclusively for the 24XX025 density variants.

Memory IC Replacement Considerations

The 24LC025T-I/SNG serves as a direct replacement offering identical electrical specifications but utilizes an 8-pin SOIC package instead of the SOT-23 form factor.