24LC014-E/ST

Memory IC Overview

The Microchip Technology 24LC014-E/ST is a 1 Kbit (128 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 supports I²C compatible 2-wire serial interfaces with clock frequencies up to 400 kHz. The device features hardware write protection, a page write buffer for up to 16 bytes, and an access time of 900 ns. It is housed in an 8-lead TSSOP package and is rated for industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection capability for the entire memory array via the WP pin
• Page write buffer supporting up to 16 bytes of data per cycle
• I²C compatible 2-wire serial interface with address lines for multiple devices

Memory IC Applications

• Data logging in industrial control systems
• Configuration storage for embedded microcontrollers
• Parameter retention in automotive electronic modules

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature range (-40°C to +125°C) and the 'ST' indicates the 8-lead TSSOP package. Confirm RoHS compliance status as required by project specifications. Ensure the ordering code matches the exact voltage and speed requirements for the target application environment.

Memory IC Selection Notes

Select this component when an extended operating temperature range is required alongside standard I²C connectivity. The 400 kHz clock rate provides faster throughput compared to 100 kHz variants. Consider the TSSOP package dimensions for PCB layout constraints and verify that the 2.5V minimum supply voltage aligns with the system power rails.

Memory IC Part Context

This part belongs to the 24AA014/24LC014 family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. The 'LC' designation specifically denotes the lower voltage operation starting at 2.5V, distinguishing it from the 'AA' series which supports voltages down to 1.7V. The 'E' grade extends the operational temperature limits beyond the standard industrial range.

Memory IC Replacement Considerations

The 24LC014-I/ST serves as a direct functional substitute if the extended temperature rating is not critical, offering the same electrical characteristics within the -40°C to +85°C range. Other packages such as SOIC or MSOP may be used if pin compatibility and board space allow.