24AA52-I/MS

Memory IC Overview

The Microchip Technology 24AA52-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 a maximum clock frequency of 400 kHz, with a reduced rate of 100 kHz for voltages below 2.5V. The device utilizes an I²C compatible 2-wire serial interface and features Schmitt trigger inputs for noise suppression. It includes software write protection for the lower half of the array and hardware write protection via the WP pin.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication using an I²C compatible protocol.
• Provides dual-level write protection through a permanent software fuse for the lower half of memory and a dedicated hardware pin for the entire array.
• Incorporates Schmitt trigger inputs and output slope control to suppress noise spikes and eliminate ground bounce.
• Features low-power CMOS technology with typical standby current of 1 µA and active current of 1 mA.

Memory IC Applications

• Personal communications devices requiring non-volatile data storage.
• Data acquisition systems needing reliable parameter retention.
• Industrial control applications utilizing I²C bus architectures.

Memory IC Procurement Notes

Verify that the ordering suffix corresponds to the MSOP-8 package type and Industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status if required by specific manufacturing standards. Ensure the selected variant matches the required voltage and speed specifications for the target application environment.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM with I²C interface is required in a surface-mount MSOP-8 package. It is suitable for designs operating between 1.8V and 5.5V. Consider the 24LCS52 if a guaranteed 400 kHz operation at lower voltages is necessary, as the 24AA52 reduces speed below 2.5V.

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 characteristics but differs in packaging options and specific electrical performance thresholds regarding clock frequency versus supply voltage relationships.

Memory IC Replacement Considerations

The 24LCS52 is a direct functional substitute within the same family, offering consistent 400 kHz operation across the full voltage range. Other 24XX52 variants may serve as replacements if package compatibility or specific voltage constraints differ.