34LC02T-I/MNY

Overview

The Microchip Technology 34LC02T-I/MNY is a 2 Kbit (256 x 8-bit) serial EEPROM utilizing an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 2.2V to 5.5V with a maximum clock frequency of 1 MHz. The device features software write-protect for the lower half of the array and hardware protection via the WP pin. It supports page writes up to 16 bytes, offers over 1 million erase/write cycles, and includes Schmitt trigger inputs for noise suppression.

Feature Summary

• Supports bidirectional 2-wire serial communication compatible with standard I²C protocols
• Provides permanent and resettable software write-protection for the lower half of the memory array
• Includes hardware write-protection capability through the dedicated WP pin
• Features output slope control to eliminate ground bounce during operation

Applications

• Data storage in battery-powered portable devices
• Configuration parameter storage in industrial systems
• Calibration data retention in sensor modules
• Device identification and security code storage

Procurement Notes

Verify that the ordering suffix 'MNY' corresponds to the specific 6-lead SOT-23 package variant as defined in the manufacturer's documentation. Confirm the 'I' designation indicates the Industrial temperature range (-40°C to +85°C). Ensure compatibility with the system's I²C bus voltage levels and pull-up requirements before integration.

Selection Notes

Select this component when a low-pin-count EEPROM solution is required for space-constrained designs. The LC version provides higher speed performance compared to the AA series. Consider the available software and hardware write-protection mechanisms if data integrity against accidental modification is critical for the application environment.

Part Context

This part belongs to the 34XX02 family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but differs in operating voltage ranges and clock speeds. The 34LC02 specifically targets applications requiring operation down to 2.2V with high-speed 1 MHz clock support.

Replacement Considerations

The 34AA02 serves as a functional alternative within the same family, though it operates at a lower maximum clock frequency of 400 kHz. Verify package compatibility and voltage specifications when substituting.