24AA128-I/SNG

Memory IC Overview

The Microchip Technology 24AA128-I/SNG is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates with a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial interface communication at clock frequencies up to 400 kHz. The device features a 64-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead SOIC package and is rated for industrial temperature ranges.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip address inputs.
• Includes hardware write protection to inhibit array writes when the WP pin is tied high.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type and temperature grade. Confirm RoHS compliance status and ensure the component meets the intended operating voltage range of 1.7V to 5.5V. Check for any recent product change notifications regarding packaging or assembly modifications before finalizing procurement.

Memory IC Selection Notes

Select this component for designs requiring non-volatile storage with I2C connectivity. Ensure the system voltage remains within the 1.7V to 5.5V operational limits. Consider the 64-byte page write buffer size for write efficiency. Verify that the industrial temperature range aligns with the environmental conditions of the target application.

Memory IC Part Context

This part belongs to the 24XX128 family, which includes the 24LC128 and 24FC128 variants. These devices share similar functional architectures but differ in minimum operating voltage and maximum clock frequency specifications. The 24AA128 variant specifically supports lower voltage operation starting at 1.7V compared to other family members.

Memory IC Replacement Considerations

The 24LC128 and 24FC128 are functionally related parts within the same datasheet. Substitution requires verification of voltage compatibility, as the 24LC128 has a higher minimum operating voltage. The 24FC128 offers higher speed capabilities but must be evaluated against system timing requirements.