24AA024-I/ST

Memory IC Overview

The Microchip Technology 24AA024-I/ST is a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz via a 2-Wire I²C compatible interface. The device features an access time of 900 ns, hardware write protection, and data retention exceeding 200 years. It is designed for industrial temperature applications, functioning reliably between -40°C and +85°C.

Memory IC Feature Summary

• Hardware write-protect capability enabled by the WP pin
• I²C compatible 2-wire serial interface with Schmitt trigger inputs
• Low-power CMOS technology with standby current as low as 1 μA
• Self-timed erase/write cycle with page write buffer

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics utilizing I²C communication protocols
• Embedded systems needing hardware-level write protection
• Automotive electronic modules operating in harsh environments

Memory IC Procurement Notes

Verify that the specific part number matches the required package type, which is TSSOP-8 for this designation. Confirm the suffix 'I' indicates the Industrial temperature grade (-40°C to +85°C). Ensure compatibility with the system's voltage range, as this component supports operation down to 1.7V. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM with hardware write protection is required. It is suitable for designs needing a wide supply voltage range from 1.7V to 5.5V. Consider this part for applications where low standby power consumption is critical. Ensure the design accommodates the 8-pin TSSOP package dimensions and utilizes the available address pins for bus expansion.

Memory IC Part Context

This component belongs to the 24AA024/24LC024 family of 2K I²C Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24LC024 but differs in its minimum operating voltage specification. The series is designed for general-purpose non-volatile memory applications requiring reliable data retention and robust noise immunity through Schmitt trigger inputs.

Memory IC Replacement Considerations

The 24LC024-I/ST is a direct functional substitute within the same package, though it requires a minimum supply voltage of 2.5V instead of 1.7V. Other members of the 24AA024/24LC024 family may be considered if voltage or temperature requirements differ.