24AA16HT-I/SN

Memory IC Overview

The Microchip Technology 24AA16HT-I/SN is a 16-Kbit (2K x 8) electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and utilizes a two-wire I²C compatible serial interface with a maximum clock frequency of 400 kHz at VCC ≥ 2.5V, or 100 kHz at lower voltages. The device features hardware write protection for the upper half of the array (addresses 400h-7FFh) via the WP pin. It supports page writes up to 16 bytes with a maximum cycle time of 5 ms. The component is housed in an 8-lead SOIC package and is rated for industrial operating temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Hardware write protection capability for half-array data security
• Low-power CMOS technology with standby current as low as 1 μA
• Schmitt trigger inputs and output slope control for noise suppression
• Self-timed erase/write cycles with acknowledge polling support

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Parameter retention in battery-backed circuits
• Calibration data storage in sensor modules

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific voltage range requirements align with the 1.7V to 5.5V specification. Ensure compatibility with the I²C bus protocol and check for any recent product change notifications regarding packaging or material composition before finalizing procurement.

Memory IC Selection Notes

Select this component when a 16-Kbit non-volatile memory solution is required with hardware-level write protection for critical data segments. It is suitable for designs needing operation down to 1.7V. Consider the 8-lead SOIC package constraints and ensure the application environment stays within the specified industrial temperature range of -40°C to +85°C.

Memory IC Part Context

This part belongs to the 24XX16H family of EEPROMs, which includes variants like the 24LC16BH and 24FC16H. These devices share similar architectural features but differ in minimum operating voltage and maximum clock speed. The 24AA16H variant specifically supports low-voltage operation starting at 1.7V, distinguishing it from the 2.5V minimum requirement of the 24LC16BH series.

Memory IC Replacement Considerations

Direct substitutes include other parts within the 24AA16H family with different package suffixes, such as 24AA16H-I/MS or 24AA16H-I/P. Cross-family replacements like the 24LC16B require verification of the higher minimum supply voltage.