24AA32A/SM

Memory IC Overview

The Microchip Technology 24AA32A/SM is a 32-Kbit Electrically Erasable PROM organized as a single block of 4K x 8-bit memory. It features a two-wire serial interface compatible with I2C protocols. The device operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 400 kHz for voltages at or above 2.5V, and 100 kHz for voltages below 2.5V. It includes hardware write protection, a 32-byte page write buffer, and Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Supports bidirectional data transmission via a two-wire serial bus protocol
• Includes hardware write-protect capability controlled by the WP pin
• Features a 32-byte page write buffer for efficient data storage operations
• Incorporates Schmitt trigger inputs to suppress noise spikes

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I2C-compatible serial interfaces

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the SOIJ package type, as the base part number covers multiple form factors. Confirm the industrial temperature range rating matches the application requirements. Ensure compliance with RoHS standards is documented for the specific manufacturing batch. Check for any recent Product Change Notifications regarding package modifications or assembly site changes before finalizing procurement.

Memory IC Selection Notes

Select this component when a 32-Kbit EEPROM with I2C compatibility is required. The 24AA32A variant supports operation down to 1.7V, distinguishing it from the 24LC32A which requires a minimum of 2.5V. Consider the SOIJ package dimensions for surface mount constraints. Evaluate the need for hardware write protection if system security against accidental writes is critical.

Memory IC Part Context

This component belongs to the 24XX32A family of serial EEPROMs manufactured by Microchip Technology. The family shares identical functional specifications but varies in voltage ranges and packaging options. The 24AA32A specifically denotes the low-voltage operational variant within this series, designed for advanced low-power applications compared to standard voltage counterparts.

Memory IC Replacement Considerations

Direct substitutes include other 24AA32A variants with different package suffixes such as 24AA32AT-I/MS or 24AA32A-I/P, provided the physical footprint and pinout are compatible with the existing design.