24LC01B-E/SN

Memory IC Overview

The Microchip Technology 24LC01B-E/SN is a 1 Kbit Electrically Erasable PROM (EEPROM) organized as one block of 128 x 8-bit memory. It features a 2-wire serial interface compatible with I2C protocols and operates on a single supply voltage ranging from 2.5V to 5.5V. The device supports a maximum clock frequency of 400 kHz and includes an 8-byte page write buffer for efficient data transfer. It offers hardware write protection via the WP pin, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Hardware Write-Protect: The WP pin allows users to inhibit write operations across the entire memory array when tied to VCC, while read operations remain unaffected.
• Page Write Capability: Features an 8-byte page write buffer that temporarily stores data before writing it into memory upon receipt of a Stop condition.
• Noise Suppression: Equipped with Schmitt Trigger inputs and filter circuits on SCL and SDA pins to suppress noise spikes and ensure reliable operation on noisy buses.

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage in embedded controllers
• Calibration data retention in sensor modules

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required temperature grade and package type. The 'E' suffix indicates Extended temperature range (-40°C to +125°C), while 'SN' denotes the 8-Lead SOIC package. Confirm RoHS compliance status and check for any recent Product Change Notifications (PCNs) regarding manufacturing locations or packaging updates prior to finalizing procurement orders.

Memory IC Selection Notes

Select this component when a non-volatile memory solution is needed for small data sets requiring frequent updates. Ensure the system voltage remains within the 2.5V to 5.5V range, as lower voltages are not supported by the LC series. Consider the 8-byte page write limit to optimize bus throughput and avoid data corruption during boundary crossings.

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 operating voltage and speed specifications. The 24LC01B variant is specifically designed for applications requiring operation down to 2.5V, distinguishing it from the 1.7V capable 24AA01/24FC01 devices.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24LC01BT-I/SN and 24LC01BH-E/SN. Verify compatibility regarding temperature grades and package dimensions before substitution.