24AA32AT/SM

Memory IC Overview

The Microchip Technology 24AA32AT/SM is a 32-Kbit Electrically Erasable PROM organized as 4K x 8-bit memory. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device features typical active current of 1 mA and standby current of 1 µA. It supports I2C compatible two-wire serial interface, includes a 32-byte page write buffer, and offers hardware write-protect functionality via the WP pin.

Memory IC Feature Summary

• Supports low-voltage operation down to 1.7V for advanced power-sensitive applications
• Includes Schmitt trigger inputs for enhanced noise suppression and output slope control to eliminate ground bounce
• Features hardware write-protect capability that inhibits write operations when the WP pin is tied high

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I2C bus architecture for configuration data

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging rather than tube or tray. Confirm the 'I' temperature grade matches industrial requirements (-40°C to +85°C). Ensure the 'SM' package designation corresponds to the required SOIJ footprint. Check RoHS compliance status against current manufacturing standards.

Memory IC Selection Notes

Select this component for designs requiring 32-Kbit EEPROM capacity with I2C compatibility. The 24AA32AT variant supports operation down to 1.7V, unlike the 24LC32A which requires 2.5V minimum. Consider the SOIJ package dimensions for PCB layout constraints. Verify address pin configurations if multiple devices share the same bus.

Memory IC Part Context

This part belongs to the 24XX32A family of serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24LC32A but differs in minimum operating voltage specifications. The family supports various packages including SOIC, TSSOP, and DFN, providing flexibility for different board space requirements.

Memory IC Replacement Considerations

Direct substitutes include other 24AA32A variants with different packaging such as 24AA32AT-I/ST (TSSOP) or 24AA32A-I/MS (MSOP). Cross-family replacements like 24LC32A require verifying voltage level compatibility as they operate at higher minimum voltages.