24AA32AT-I/ST

Memory IC Overview

The Microchip Technology 24AA32AT-I/ST is a 32-Kbit Electrically Erasable PROM (EEPROM) 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 at VCC ≥ 2.5V and 100 kHz at lower voltages. It includes hardware write protection, a 32-byte page write buffer, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead TSSOP package and supports industrial temperature ranges.

Memory IC Feature Summary

• Supports bidirectional data transmission via a two-wire serial bus protocol
• Includes hardware write protection controlled by the WP pin
• Features output slope control to eliminate ground bounce
• Provides high ESD protection exceeding 4,000V

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the 'I' designation indicates the industrial temperature range specification. Ensure compatibility with the specific I²C pull-up resistor requirements based on the target operating voltage and clock speed.

Memory IC Selection Notes

Select this component for applications requiring operation down to 1.7V, distinguishing it from the 24LC32A variant which requires a minimum of 2.5V. Consider the 32-byte page write buffer for efficient bulk data transfers. Verify that the TSSOP-8 package dimensions fit the available PCB footprint constraints.

Memory IC Part Context

This part belongs to the 24XX32A family of 32-Kbit I²C Serial EEPROMs manufactured by Microchip Technology. The family shares identical functional specifications but varies by voltage range (AA vs LC), temperature grade (I vs E), and physical package type (ST, MS, MC, etc.).

Memory IC Replacement Considerations

The 24AA32AF-I/MS serves as a verified substitute within the same family, offering identical electrical characteristics in an 8-lead MSOP package.