24LC01BT-E/OT

Memory IC Overview

The Microchip Technology 24LC01BT-E/OT is a 1 Kbit (128 x 8) Electrically Erasable PROM (EEPROM) utilizing low-power CMOS technology. It operates on a single supply voltage ranging from 2.5V to 5.5V and supports I2C compatible 2-wire serial communication with a maximum clock frequency of 400 kHz. The device features an 8-byte page write buffer, self-timed erase/write cycles, and hardware write protection via the WP pin. It is housed in a 5-lead SOT-23 package and rated for extended industrial temperature operation from -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional data transfer using a standard 2-wire I2C compatible serial interface.
• Includes Schmitt trigger inputs and filter circuits to suppress noise spikes on the bus.
• Features hardware write protection that inhibits all memory writes when the WP pin is tied to VCC.
• Provides output slope control designed to eliminate ground bounce during signal transitions.

Memory IC Applications

• Non-volatile storage for system configuration parameters
• Calibration data retention in measurement instruments
• Device identification and serial number storage
• Parameter logging in embedded controllers

Memory IC Procurement Notes

Verify the specific ordering suffix 'E' confirms the extended temperature range (-40°C to +125°C) and 'OT' denotes the SOT-23-5 package. Confirm the voltage range requirement aligns with the 2.5V minimum specification for the 24LC01B series. Ensure the design accounts for the open-drain nature of the SDA and SCL lines requiring external pull-up resistors.

Memory IC Selection Notes

Select this component when a compact 5-lead footprint is required for small form factor designs. The 24LC01BT-E/OT is suitable for applications needing non-volatile storage where power consumption must be minimized. Consider the 400 kHz speed limit if higher throughput is necessary, as faster alternatives exist within the family. Verify that the 2.5V minimum operating voltage meets the system's lowest supply rail conditions.

Memory IC Part Context

This part belongs to the 24XX01 family of 1 Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA01 and 24FC01 which differ in voltage ranges and clock speeds. The 24LC01B specifically targets applications requiring operation down to 2.5V, distinguishing it from the lower voltage 24AA01 and high-speed 24FC01 models.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24LC01BT-I/OT for industrial temperature range or 24LC01BT-E/SN for SOIC packaging. Cross-reference datasheet electrical characteristics to ensure compatibility with existing circuit constraints.