34LC02-I/P

Overview

The Microchip Technology 34LC02-I/P is a 2 Kbit (256 x 8) serial EEPROM utilizing an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, with the LC variant supporting a maximum clock frequency of 1 MHz at VCC ≥ 2.5V. The device features a 16-byte page write buffer and typical standby current of 100 nA. It includes permanent and resettable software write-protect for the lower half of the array, alongside hardware protection via the WP pin. The Industrial temperature grade (-40°C to +85°C) component is housed in an 8-pin PDIP package.

Feature Summary

• Supports bidirectional 2-wire serial communication with up to 1 MHz clock speed
• Provides permanent and resettable software write-protection for the lower 128 bytes
• Features hardware write-protection capability through the dedicated WP pin
• Includes Schmitt trigger inputs and output slope control for noise suppression

Applications

• Data storage in battery-powered systems requiring low standby current
• Configuration memory for microcontroller-based embedded designs
• Calibration data retention in industrial instrumentation
• Device identification and parameter storage in consumer electronics

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the 'P' suffix indicates the 8-lead PDIP package type. Ensure the specific part number matches the required voltage and speed specifications for your application design.

Selection Notes

Select this component when a 2 Kbit non-volatile memory solution is required with high-speed I²C compatibility. The 34LC02 offers faster clock rates than standard variants but requires a minimum operating voltage of 2.5V for full 1 MHz performance. Consider the available write-protection schemes if data integrity is critical.

Part Context

This device belongs to the 34XX02 family, which also includes the 34AA02. While functionally similar, the 34LC02 supports higher clock frequencies compared to the 34AA02. The family provides flexible memory organization and multiple package options including SOIC, TSSOP, MSOP, TDFN, and SOT-23.

Replacement Considerations

The 34AA02 serves as a functional alternative within the same family, though it has a lower maximum clock frequency specification.