24LC025-I/P

Memory IC Overview

The Microchip Technology 24LC025-I/P is a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 2.5V to 5.5V and features a 2-wire I²C compatible serial interface with clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology, drawing typical standby current of 1 μA and active read current of 1 mA. It supports page write operations with a 16-byte buffer and a maximum write cycle time of 5 ms. The component is housed in an 8-pin PDIP 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 using hardware address pins A0, A1, and A2 for expanded contiguous addressing.
• Includes Schmitt trigger inputs and output slope control to suppress noise spikes and eliminate ground bounce during operation.
• Features self-timed erase/write cycles with internal write protection logic that disables programming if VCC falls below nominal thresholds.

Memory IC Applications

• Data logging applications requiring non-volatile storage for sensor readings or historical records
• Configuration storage for microcontroller systems where parameter retention is required after power loss
• Calibration data storage for precision measurement instruments

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) rather than automotive grades. Confirm the '/P' designation indicates the 8-lead PDIP package style. Ensure the part number corresponds to the 24LC025 variant which lacks hardware write-protect capabilities compared to the 24LC024 model.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM capacity is required with standard I²C compatibility. The 24LC025 differs from the 24LC024 by omitting the hardware write-protect pin, making it suitable for designs relying solely on software-based protection. Verify that the system voltage remains above 2.5V to ensure proper functionality within the specified operating range.

Memory IC Part Context

This device belongs to the 24AA024/24LC024/24AA025/24LC025 family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. The family shares identical memory organization and interface protocols but varies in supply voltage requirements and write-protection features. The 24LC series specifically requires a minimum supply voltage of 2.5V, distinguishing it from the lower-voltage 24AA series.

Memory IC Replacement Considerations

The 24LC024 serves as a functional substitute if hardware write protection via the WP pin is not utilized in the design. Other members of the 24LC02x family may be considered if different package styles are needed, provided the memory density and interface remain compatible.

Memory IC FAQ

Does the 24LC025 support hardware write protection?

No, the 24LC025 does not have a hardware write-protect pin; the WP pin is not internally connected. Write protection must be managed through software commands.

What is the maximum page write size for this device?

The device includes a 16-byte page write buffer, allowing up to 16 bytes to be written in a single transaction without generating a Stop condition.