24LC01BT-E/ST

Memory IC Overview

The Microchip Technology 24LC01BT-E/ST is a 1 Kbit (128 x 8) Electrically Erasable PROM (EEPROM) featuring a 2-wire I2C compatible serial interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology, ensuring an active read current of 1 mA maximum and standby current of 5 µA maximum at extended temperatures. It includes hardware write protection via the WP pin, an 8-byte page write buffer, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead TSSOP package and is rated for operation from -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial data transmission with I2C compatibility
• Includes hardware write protection to inhibit memory writes when configured
• Features an 8-byte page write buffer for efficient data storage operations
• Incorporates Schmitt trigger inputs and output slope control for signal integrity

Memory IC Applications

• Non-volatile data storage in industrial control systems
• Configuration parameter retention in consumer electronics
• Device identification and calibration data logging in embedded sensors

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'ST' indicates the 8-lead TSSOP package. Confirm the minimum operating voltage requirement of 2.5V aligns with the target system power rails, as this variant does not support operation below 2.5V unlike other members of the family. Ensure the design accounts for the specific package dimensions and thermal characteristics associated with the TSSOP form factor.

Memory IC Selection Notes

Select this component when a 1 Kbit non-volatile memory solution is required with I2C connectivity and extended temperature capability. It is suitable for applications needing hardware write protection and low standby power consumption. Consider alternative packages such as SOIC or SC-70 if footprint constraints differ, or choose variants like 24AA01 if operation down to 1.7V is necessary.

Memory IC Part Context

This part belongs to the 24XX01 family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. The family shares common functional architectures but varies in voltage ranges, temperature grades, and physical packages. The 24LC01B specifically denotes the 2.5V to 5.5V operational range, distinguishing it from the 1.7V capable 24AA01 and high-speed 24FC01 counterparts.

Memory IC Replacement Considerations

Direct substitutes include other 24LC01B variants with different packages (e.g., 24LC01B-I/SN for SOIC) or temperature grades (e.g., 24LC01B-I/ST for Industrial). Cross-family replacements like 24AA01 require verification of voltage level compatibility.