24AA32AT-I/MNY

Memory IC Overview

The Microchip Technology 24AA32AT-I/MNY is a 32-Kbit Electrically Erasable PROM organized as a single block of 4K x 8-bit memory. It operates with a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial interfaces at clock frequencies up to 400 kHz. The device features a 32-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 TDFN package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-voltage CMOS technology enabling operation down to 1.7V with minimal standby current
• I2C compatible two-wire serial interface supporting 100 kHz and 400 kHz clock speeds
• Hardware write-protect functionality allowing array protection through the WP pin
• High reliability specifications including over one million erase/write cycles and data retention exceeding 200 years

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial control applications operating within extended temperature ranges

Memory IC Procurement Notes

Verify that the specific ordering suffix 'MNY' corresponds to the 8-lead TDFN package configuration required for your PCB layout. Confirm the 'I' designation matches the necessary industrial temperature range of -40°C to +85°C for your operational environment. Ensure compatibility with the 1.7V to 5.5V supply voltage requirements before finalizing component selection.

Memory IC Selection Notes

Select this component when a compact surface-mount EEPROM is needed for I2C bus communication. The 24AA32A variant specifically supports lower voltage operation starting at 1.7V compared to the 2.5V minimum of the 24LC32A series. Consider the 32-byte page write buffer for efficient data handling and utilize the hardware write-protect feature for critical data security without software overhead.

Memory IC Part Context

This part belongs to the 24XX32A family of 32-Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC32A, which differs primarily in its minimum operating voltage. The 24AA32A series is designed for advanced low-power applications and offers multiple package options including PDIP, SOIC, MSOP, and various DFN configurations to suit different design constraints.

Memory IC Replacement Considerations

The 24LC32AT-I/MNY serves as a direct functional substitute within the same package and interface standard. Note that the 24LC32A requires a minimum supply voltage of 2.5V, whereas the 24AA32A supports operation down to 1.7V. Verify voltage headroom in the target circuit before substituting.