24LC65-I/P

Memory IC Overview

The Microchip Technology 24LC65-I/P is a 64Kbit (8K x 8) serial EEPROM featuring an I²C-compatible two-wire interface. It operates within a voltage range of 2.5V to 6.0V and supports clock frequencies up to 400 kHz with a typical access time of 900 ns. The device includes a 64-byte input cache for fast write loads and offers high endurance options. It is housed in an 8-pin PDIP package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Features a relocatable 4K bit block capable of 10 million erase/write cycles, while the remaining 60K bits support 1 million cycles.
• Includes a 64-byte page cache that allows loading data before initiating internal write cycles to improve bus throughput.
• Provides programmable security options to protect critical data by locking contiguous memory blocks against further writes.
• Incorporates Schmitt trigger inputs and noise filters on SDA and SCL lines to ensure stable operation in noisy environments.

Memory IC Applications

• Advanced low-power personal communication devices
• Industrial data logging systems requiring frequent data updates
• Embedded systems needing secure storage for configuration parameters

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and the '/P' indicates the 8-pin PDIP through-hole package. Confirm the operating voltage range matches the system requirements, as this variant specifies 2.5V to 6.0V. Ensure the design accounts for the open-drain nature of the I²C interface requiring appropriate pull-up resistors.

Memory IC Selection Notes

Select this component when an application requires a balance of high endurance for specific data blocks and standard endurance for general storage. The 64-byte cache is beneficial for applications performing burst writes. Consider the PDIP package only if through-hole mounting is necessary; otherwise, surface mount alternatives like the SOIJ package may be more suitable for automated assembly.

Memory IC Part Context

This part belongs to the 24XX65 family of smart serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24AA65 and 24C65 but differs in supply voltage specifications and temperature ratings. The 24LC65 variant specifically targets commercial and industrial applications requiring operation down to 2.5V.

Memory IC Replacement Considerations

Direct substitutes include the 24LC65/SM for surface mount applications or the 24LC64 series for similar functionality with different endurance characteristics. Verify pin compatibility and voltage ranges when cross-referencing with other manufacturers' I²C EEPROMs.