24LC025/P

Memory IC Overview

The Microchip Technology 24LC025/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 a maximum clock frequency of 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-lead PDIP package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address pins A0, A1, and A2.
• Includes Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Features self-timed erase/write cycles with internal write protection logic that disables programming during busy states.
• Provides high reliability with over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Applications

• Non-volatile data storage for system configuration parameters
• Calibration data retention in industrial instrumentation
• Device identification and tracking information storage
• Parameter logging in embedded controllers

Memory IC Procurement Notes

Verify the specific ordering suffix 'P' corresponds to the 8-lead PDIP package type required for through-hole mounting. Confirm the 'I' or 'E' temperature grade matches the operational environment, as the base model number does not specify the grade. Ensure the design accounts for the absence of a hardware write-protect pin on the 24LC025 variant compared to the 24LC024. Check RoHS compliance status if lead-free assembly is mandated.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM capacity is required with standard I²C connectivity. Choose the PDIP package for prototyping or applications requiring through-hole assembly. Note that unlike the 24LC024, this device lacks a dedicated hardware write-protect pin; software-based protection must be implemented if write security is necessary. Verify that the system power supply remains within the 2.5V to 5.5V range to ensure proper functionality.

Memory IC Part Context

The 24LC025 belongs to the Microchip 24AA024/24LC024/24AA025/24LC025 family of 2 Kbit serial EEPROMs. This family shares identical pinouts and functional interfaces but differs in voltage ranges and write-protection features. The 24LC series specifically requires a minimum operating voltage of 2.5V, distinguishing it from the 24AA series which supports lower voltages down to 1.7V. All variants utilize the same 2-wire serial protocol.

Memory IC Replacement Considerations

The 24LC024 is a direct functional substitute with identical specifications, except it includes a hardware write-protect pin. The 24AA025 offers similar performance but supports a wider voltage range starting at 1.7V. Cross-referencing should confirm package compatibility and voltage requirements.