24AA08HT-I/SN

Memory IC Overview

The Microchip Technology 24AA08HT-I/SN is an 8 Kbit Electrically Erasable PROM organized as four blocks of 256 x 8-bit memory. It features a 2-wire serial interface compatible with I²C™, supporting clock frequencies up to 400 kHz at VCC ≥ 2.5V and 100 kHz at VCC < 2.5V. The device operates on a single supply voltage ranging from 1.7V to 5.5V. Key electrical characteristics include a maximum read current of 1 mA and standby current of 1 µA. It offers data retention exceeding 200 years and endurance of over one million erase/write cycles.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array via the WP pin
• Integrated page write buffer allowing storage of up to 16 bytes before internal programming
• Schmitt trigger inputs and noise suppression filters for reliable operation in noisy environments
• Self-timed erase/write cycle with automatic acknowledge polling support

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Parameter retention in low-power consumer electronics
• Calibration data storage in sensor interfaces

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging rather than tube, as standard variants often use tubes. Confirm the 'I' temperature grade matches the required -40°C to +85°C operational range. Ensure the SOIC-8 package dimensions align with the target PCB footprint. Cross-reference the specific revision code against the latest datasheet DS20002084B to confirm compatibility with existing firmware drivers.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required, distinguishing it from the 2.5V minimum 24LC08BH variant. Choose the 24AA08H series for applications needing high-speed 400 kHz communication at voltages above 2.5V. Consider the TSSOP or MSOP packages if space constraints preclude the use of the SOIC-8 form factor. Verify that the hardware write-protect feature meets security requirements for critical data segments.

Memory IC Part Context

This part belongs to the 24XX08H family of serial EEPROMs, designed for general-purpose non-volatile data storage. It shares architectural similarities with other 8Kbit devices but is distinct from the 24LC08BH due to its lower minimum operating voltage. The device integrates standard I²C protocol logic with specialized noise filtering and output slope control to minimize ground bounce during switching events.

Memory IC Replacement Considerations

Direct substitutes include the 24AA08H-I/SN (tube packaging) or 24AA08H-I/ST (tape and reel). For 2.5V minimum applications, the 24LC08BH series may be used if voltage levels permit. Ensure any replacement maintains the same 8-pin package type and I²C address coding structure.