24LC02B-I/ST

Memory IC Overview

The Microchip Technology 24LC02B-I/ST is a 2-Kbit (256 x 8) serial EEPROM featuring an I2C-compatible two-wire interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz at VCC ≥ 2.5V, or 100 kHz for lower voltages. The device utilizes an 8-lead TSSOP package and is rated for industrial temperatures from -40°C to +85°C. Key electrical parameters include a maximum read current of 1 mA, standby current of 5 µA, and a typical access time of 900 ns.

Memory IC Feature Summary

• Hardware write-protect capability via the WP pin to inhibit memory writes when tied to VCC
• Integrated page write buffer allowing storage of up to eight bytes before internal programming
• Schmitt trigger inputs with noise suppression filters on SDA and SCL lines

Memory IC Applications

• Non-volatile data storage in industrial control systems
• Configuration parameter retention in embedded devices
• Calibration data logging in sensor interfaces

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'ST' denotes the 8-lead TSSOP package. Confirm the specific revision level against the manufacturer's latest datasheet DS20001709N to ensure compatibility with required voltage ranges and timing specifications.

Memory IC Selection Notes

Select this component for applications requiring low-power non-volatile storage with simple serial connectivity. Ensure the system voltage remains above 2.5V to utilize the full 400 kHz bus speed. Consider the 8-byte page buffer size when designing write algorithms to optimize bus throughput and minimize write cycle latency.

Memory IC Part Context

This part belongs to the 24XX02 family of serial EEPROMs, which includes the 24AA02 and 24FC02 variants. While sharing similar physical dimensions and interface protocols, the 24LC02B is distinguished by its minimum operating voltage of 2.5V, unlike the 24AA02 which supports operation down to 1.7V.

Memory IC Replacement Considerations

The 24LC02B-I/SN serves as a direct package alternative using the SOIC format. Cross-referencing with the 24AA02 series requires verification of the minimum supply voltage requirements, as those devices support lower voltage operation.