24LC01B-I/ST

Memory IC Overview

The Microchip Technology 24LC01B-I/ST is a 1 Kbit (128 x 8) Electrically Erasable PROM (EEPROM) housed in an 8-lead TSSOP package. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device features an access time of 3.5 µs and supports industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional, 2-wire serial communication compatible with the I2C protocol.
• Includes hardware write protection via the WP pin to inhibit memory writes when tied high.
• Features Schmitt trigger inputs and noise suppression filters for reliable operation on noisy buses.

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the ordering suffix matches the required temperature grade and packaging format. Confirm the specific voltage range requirements align with the 2.5V minimum specification for the 24LC01B variant. Ensure compatibility with the host controller's I2C bus timing constraints before finalizing procurement.

Memory IC Selection Notes

Select this component for applications requiring low-pin-count non-volatile memory with hardware write protection. It is suitable for systems operating within the 2.5V to 5.5V supply range. Consider the 8-byte page write buffer for efficient data writing operations in space-constrained designs.

Memory IC Part Context

This part belongs to the 24XX01 family of 1 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24AA01 and 24FC01 but differs in supply voltage and speed specifications. The 'I' suffix denotes the Industrial temperature grade, while '/ST' indicates the TSSOP package type.

Memory IC Replacement Considerations

Direct substitutes include other 24LC01B variants with different packages or temperature grades, such as 24LC01B-E/ST. Cross-family replacements like 24AA01 or 24FC01 require verification of voltage and speed compatibility.