24LC16BHT-I/ST

Memory IC Overview

The Microchip Technology 24LC16BHT-I/ST is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I²C protocols, supporting clock frequencies up to 400 kHz for VCC between 2.5V and 5.5V. The device operates on a single supply voltage ranging from 2.5V to 5.5V, with maximum read current of 1 mA and standby current of 5 μA at extended temperatures. It includes a 16-byte page write buffer, hardware write-protect capability for the upper half-array, and Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Hardware write-protect feature inhibits write operations to the upper half of the memory array when the WP pin is tied to VCC.
• Integrated 16-byte page write buffer allows efficient data transfer by storing multiple bytes before initiating an internal self-timed write cycle.
• Schmitt trigger inputs and output slope control provide noise suppression and eliminate ground bounce during high-speed data transmission.

Memory IC Applications

• Embedded systems requiring non-volatile data storage for configuration parameters
• Industrial control devices needing reliable memory for sensor calibration data
• Consumer electronics utilizing low-power I²C interfaces for persistent settings

Memory IC Procurement Notes

Verify that the ordering suffix 'T' indicates tape-and-reel packaging rather than tube, as this affects handling and reflow profiles. Confirm the 'I' temperature grade corresponds to the -40°C to +85°C industrial range required for your specific application environment. Ensure the 'H' variant designation aligns with the half-array write-protect functionality described in the datasheet.

Memory IC Selection Notes

Select this component when a 16-Kbit capacity is sufficient and I²C compatibility is required. The 24LC16BH series specifically supports operation down to 2.5V, distinguishing it from lower-voltage variants like the 24AA16H. Consider the TSSOP-8 package for surface-mount assembly constraints. Verify that the 400 kHz maximum clock frequency meets the system bus speed requirements.

Memory IC Part Context

This part belongs to the 24XX16H family of serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24AA16H and 24FC16H but differs in minimum operating voltage and maximum clock frequency specifications. The 'H' suffix denotes enhanced features such as half-array write protection compared to earlier generations.

Memory IC Replacement Considerations

Direct substitutes include other 24LC16BH variants with different packaging options, such as 24LC16BH-I/SN (SOIC) or 24LC16BH-I/P (PDIP). Cross-family replacements like the 24AA16H offer wider voltage ranges but may require level shifting if operating below 2.5V.