34LC02T-I/OT

Overview

The Microchip Technology 34LC02T-I/OT is a 2 Kbit (256 x 8) serial EEPROM housed in a 6-lead SOT-23 package. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I²C-compatible 2-wire serial interfaces with clock frequencies up to 1 MHz. The device features a 16-byte page write buffer, permanent and resettable software write protection for the lower half of the array, and hardware write protection via the WP pin. It provides over one million erase/write cycles and data retention exceeding 200 years.

Feature Summary

• Supports bidirectional 2-wire serial interface bus compatible with standard I²C protocols
• Includes permanent and resettable software write protection for the lower half of the memory array
• Features Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Provides hardware write protection capability for the entire array through an external pin

Applications

• Data storage in battery-powered consumer electronics
• Configuration parameter storage in industrial control systems
• Calibration data retention in automotive electronic modules

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the 'T' suffix indicates tape and reel packaging. Ensure the specific part number matches the required voltage and speed specifications for your application design.

Selection Notes

Select this component when a low-voltage, small-footprint EEPROM is required for I²C communication. The LC variant offers higher clock speeds compared to AA variants. Consider the SOT-23 package constraints regarding address pin availability for multi-device bus configurations.

Part Context

This device belongs to the 34XX02 family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 34AA02 but differs in maximum operating frequency and minimum voltage requirements. The family is designed for applications requiring non-volatile data storage with flexible write protection options.

Replacement Considerations

The 34LC02T-I/SN is a direct replacement offering the same electrical characteristics in an 8-pin SOIC package. For lead-free compliance verification, check the datasheet for Pb-free designation markings.