24AA256T-I/SM

Memory IC Overview

The Microchip Technology 24AA256T-I/SM is a 256-Kbit (32K x 8) Serial Electrically Erasable PROM (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz. The device utilizes a two-wire I²C compatible serial interface and features a 64-byte page write buffer. It includes hardware write protection via the WP pin, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Features hardware write protection that inhibits write operations when the WP pin is tied to VCC.
• Includes Schmitt trigger inputs designed for improved noise spike suppression.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Low-power embedded memory storage

Memory IC Procurement Notes

Verify the specific suffix 'I/SM' corresponds to the Industrial temperature range (-40°C to +85°C) and the SOIJ-8 package type. Confirm the datasheet revision matches the required specifications. Ensure the ordering code aligns with the intended volume packaging options available from authorized distributors.

Memory IC Selection Notes

Select this component for designs requiring low-voltage operation down to 1.7V. It is suitable for applications needing high endurance and long data retention. Consider the SOIJ-8 package dimensions for PCB layout constraints. Verify compatibility with the host microcontroller's I²C voltage levels and pull-up requirements.

Memory IC Part Context

This part belongs to the 24XX256 family of 256-Kbit I²C Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC256 and 24FC256, which differ in minimum operating voltage and maximum clock frequency capabilities while sharing similar interface protocols.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical specifications include other 24AA256 variants with different package suffixes such as 24AA256T-I/SN or 24AA256T-I/MF. Cross-family replacements like the 24LC256 require verification of the minimum supply voltage compatibility.