24AA256-I/P

Memory IC Overview

The Microchip Technology 24AA256-I/P is a 32K x 8 (256 Kbit) Serial Electrically Erasable PROM. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz via an I²C compatible two-wire serial interface. The device features a 64-byte page write buffer, hardware write protection, and Schmitt trigger inputs for noise suppression. It is available in an 8-lead PDIP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Includes hardware write protection controlled by the WP pin to inhibit write operations while maintaining read access.
• Features output slope control designed to eliminate ground bounce during signal transitions.

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems utilizing I²C communication protocols

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's latest documentation to ensure compatibility with existing designs. Check for any recent product change notices regarding packaging or assembly modifications before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a broad voltage operation down to 1.7V is required alongside standard I²C compatibility. Ensure the application environment stays within the specified industrial temperature limits. Consider the PDIP package constraints if surface mount alternatives are not feasible for the target assembly process.

Memory IC Part Context

This part belongs to the 24XX256 family of 256-Kbit Serial EEPROMs manufactured by Microchip Technology. The series includes variants like the 24LC256 and 24FC256, which share similar architectures but differ in minimum operating voltage and maximum clock speed specifications.

Memory IC Replacement Considerations

Direct substitutes include other 24AA256 variants with different packages such as 24AA256-I/SN or 24AA256-I/MS. Cross-family replacements like the 24LC256 require verification of the minimum supply voltage requirements.