24AA52T-I/MS

Memory IC Overview

The Microchip 24AA52T-I/MS is a 2 Kbit Electrically Erasable PROM organized as one block of 256 bytes (256 x 8). It operates on a single supply voltage ranging from 1.8V to 5.5V and supports I2C™ compatible 2-Wire Serial Interface Bus communication with a maximum clock frequency of 400 kHz. The device features software write protection for the lower 128 bytes and hardware write protection for the entire array via the WP pin. It includes Schmitt trigger inputs, output slope control, and ESD protection exceeding 4,000V. Endurance is rated at 1,000,000 erase/write cycles with data retention greater than 200 years.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial interface bus with up to eight devices on the same bus using chip select bits.
• Provides dual write protection mechanisms: permanent software protection for the lower half of the array and hardware protection for the entire array via the WP pin.
• Includes self-timed write cycle with page write buffer capability for up to 16 bytes of data.
• Features noise suppression through Schmitt trigger inputs and ground bounce elimination via output slope control.

Memory IC Applications

• Low-power consumer electronics requiring non-volatile data storage
• Data acquisition systems needing parameter configuration storage
• Personal communications devices utilizing I2C bus architecture

Memory IC Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm the 'I' designation corresponds to the industrial temperature range of -40°C to +85°C. Ensure compatibility with the target system's I2C bus voltage levels, noting that clock frequency specifications vary based on the supply voltage conditions defined in the electrical characteristics table.

Memory IC Selection Notes

Select this component for applications requiring low standby current and broad voltage operation down to 1.8V. Consider the MSOP package for surface mount designs needing compact footprint. Evaluate the need for write protection features; if only partial array protection is required, the software feature suffices, whereas total array lock requires connecting the WP pin to VCC.

Memory IC Part Context

This part belongs to the 24AA52/24LCS52 family of 2Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but differs in voltage ranges and clock speeds. The 24AA52 variant specifically supports operation down to 1.8V, distinguishing it from the 24LCS52 which requires a minimum of 2.2V.

Memory IC Replacement Considerations

Direct replacements within the same package and functionality include other 24AA52 variants such as 24AA52-I/MS or 24AA52-I/SN. Cross-family substitutes like the 24LC52 series may require voltage level verification as they typically operate from 2.5V minimum.