24LC01BT-I/ST

Memory IC Overview

The Microchip Technology 24LC01BT-I/ST is a 1 Kbit (128 x 8) Electrically Erasable PROM featuring a 2-wire I2C compatible serial interface. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum active current of 3 mA and a standby current of 5 µA at extended temperatures. It supports page writes of up to 8 bytes with a maximum write cycle time of 5 ms. The component is housed in an 8-lead TSSOP package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Features hardware write protection via the WP pin to inhibit memory writes when tied high.
• Includes Schmitt trigger inputs and noise suppression filters to ensure reliable data transmission on noisy buses.
• Supports acknowledge polling to maximize bus throughput by detecting internal write cycle completion.

Memory IC Applications

• Non-volatile data storage in embedded systems requiring small memory capacity.
• Configuration parameter retention in microcontroller-based designs.
• Device identification and calibration data logging in industrial instrumentation.

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'ST' denotes the 8-lead TSSOP package. Confirm the 'B' suffix indicates the specific revision compatible with the 2.5V minimum operating voltage. Ensure compatibility with the host system's I2C pull-up resistor requirements for the 400 kHz clock speed.

Memory IC Selection Notes

Select this part when a 1 Kbit EEPROM with I2C interface is required within the 2.5V to 5.5V supply range. Choose the Industrial grade variant if the application environment remains within -40°C to +85°C. Consider the TSSOP package for surface-mount assembly constraints. Verify that the 8-byte page write buffer aligns with the application's data writing patterns to optimize performance.

Memory IC Part Context

This component belongs to the 24XX01 family of 1 Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA01 and 24FC01, which differ primarily in operating voltage ranges and maximum clock frequencies. The 24LC01B specifically targets applications requiring operation down to 2.5V, distinguishing it from the lower-voltage 24AA01 series.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical specifications include other 24LC01B variants such as 24LC01B-I/SN or 24LC01B-I/P. Cross-family replacements like the 24AA01 require verification of the minimum supply voltage compatibility, as the 24AA01 supports operation down to 1.7V.