24AA08T-I/OT

Memory IC Overview

The Microchip Technology 24AA08T-I/OT is an 8-Kbit (1K x 8) Electrically Erasable PROM (EEPROM) utilizing a two-wire I²C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz at VCC ≥ 2.5V, and 100 kHz when VCC is between 1.7V and 2.5V. The device features a 16-byte page write buffer, self-timed erase/write cycles with a maximum duration of 5 ms, and hardware write protection via the WP pin. It supports industrial temperature ranges (-40°C to +85°C), offers data retention exceeding 200 years, and endures over one million erase/write cycles.

Memory IC Feature Summary

• Supports bidirectional two-wire serial communication protocol with Schmitt trigger inputs for noise suppression.
• Includes a 16-byte page write buffer to optimize data transfer efficiency during write operations.
• Provides hardware-based write protection capability through the dedicated WP pin to prevent unauthorized memory modifications.
• Features output slope control mechanisms designed to eliminate ground bounce effects during signal transitions.

Memory IC Applications

• Data logging in low-power embedded systems
• Configuration storage for microcontroller peripherals
• Calibration parameter retention in industrial sensors
• Device identification and serial number storage

Memory IC Procurement Notes

Verify the specific suffix 'I/OT' corresponds to the Industrial temperature grade and SOT-23-5 package configuration. Confirm that the required operating voltage aligns with the 1.7V minimum specification for the 24AA08 series. Ensure design compatibility with the 400 kHz I²C bus speed limitations at lower supply voltages. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Memory IC Selection Notes

Select this component when a compact surface-mount solution is required for non-volatile data storage in space-constrained designs. The SOT-23-5 package offers a small footprint suitable for portable electronics. Consider the 1.7V minimum operating voltage for battery-powered applications where power efficiency is critical. Verify that the system's I²C bus timing requirements are met within the specified electrical characteristics for the chosen supply voltage range.

Memory IC Part Context

This part belongs to the 24XX08 family of serial EEPROMs, which includes variants like the 24LC08B and 24FC08. While sharing similar memory architecture and interface protocols, differences exist in minimum operating voltages and maximum clock frequencies across the family. The 24AA08 variant specifically supports operation down to 1.7V, distinguishing it from parts requiring higher minimum voltages.

Memory IC Replacement Considerations

Direct substitutes include other 24AA08 variants with different packages such as 24AA08T-I/MS or 24AA08-I/SN, provided the pinout and electrical specifications remain compatible. Cross-family replacements like 24LC08B or 24FC08 require verification of voltage level compatibility and clock speed limits.