24AA08HT-I/ST

Memory IC Overview

The Microchip Technology 24AA08HT-I/ST 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 for VCC ≥ 2.5V and 100 kHz for lower voltages. The device operates on a single supply ranging from 1.7V to 5.5V. Key electrical parameters include a maximum read current of 1 mA and standby current of 1 µA. It offers over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array via the WP pin
• Integrated 16-byte page write buffer to optimize bus throughput during sequential writes
• Schmitt trigger inputs and noise filters on SDA and SCL lines for enhanced signal integrity
• Output slope control mechanism designed to minimize ground bounce effects

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Calibration parameter retention in consumer electronics
• Asset tracking identification modules

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to the tape-and-reel packaging format specified by the manufacturer. Confirm the 'I' temperature grade aligns with the required -40°C to +85°C operational range. Ensure the voltage supply matches the 1.7V minimum requirement for the 24AA08H series. Cross-reference the specific package type against the datasheet diagrams to confirm physical compatibility.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required, distinguishing it from standard 2.5V variants. Consider the hardware write-protect feature if security for the upper memory block is necessary. Evaluate the 400 kHz speed capability against system bus requirements. Verify that the TSSOP-8 package dimensions fit the available PCB footprint constraints.

Memory IC Part Context

This part belongs to the 24XX08H family of serial EEPROMs, which provides non-volatile memory solutions for applications requiring frequent data updates. The family shares common interface protocols but varies in voltage ranges and endurance specifications. The 24AA08H variant specifically targets low-power designs where operation below 2.5V is essential.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA08H-I/ST, 24AA08H-I/SN.