24LCS52-I/MS

Memory IC Overview

The Microchip Technology 24LCS52-I/MS is a 2 Kbit (256 x 8) serial EEPROM featuring an I²C-compatible 2-wire interface. It operates within a supply voltage range of 2.2V to 5.5V and supports clock frequencies up to 400 kHz. The device includes software write protection for the lower 128 bytes and hardware write protection via the WP pin. It utilizes low-power CMOS technology with typical active current of 1 mA and standby current of 1 µA. The component is housed in an 8-lead MSOP package and is rated for industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard 2-wire serial bus protocol compatible with I²C™.
• Provides flexible write protection capabilities, allowing permanent software protection for half the array or hardware protection for the entire array using the WP pin.
• Features Schmitt trigger inputs on SCL and SDA lines to suppress noise spikes and ensure reliable operation on noisy buses.
• Includes output slope control circuitry designed to eliminate ground bounce during switching operations.

Memory IC Applications

• Data logging applications requiring non-volatile storage of sensor readings or system parameters.
• Configuration memory for microcontroller-based systems storing calibration constants or user settings.
• Industrial control systems operating within extended temperature ranges requiring robust noise immunity.

Memory IC Procurement Notes

Verify the specific suffix 'I/MS' confirms the Industrial temperature grade (-40°C to +85°C) and the MSOP surface-mount package. Confirm that the required voltage range aligns with the 2.2V minimum specification for the 24LCS52 variant, distinct from the 1.8V capable 24AA52. Ensure pull-up resistor values are selected appropriately for the 400 kHz clock frequency requirement.

Memory IC Selection Notes

Select this component when an I²C interface is required alongside dedicated hardware write protection for critical data integrity. The 24LCS52 is suitable for designs needing guaranteed operation at voltages down to 2.2V with high-speed 400 kHz communication. Consider the MSOP package dimensions if board space is constrained compared to larger SOIC or PDIP options.

Memory IC Part Context

This device belongs to the 24XXX52 family of 2 Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24AA52 but differs in its specified minimum operating voltage and clock frequency characteristics under certain conditions. The family is designed for general-purpose non-volatile memory applications where small data storage and simple serial interfacing are prioritized.

Memory IC Replacement Considerations

The 24AA52 serves as a functional substitute with similar pinouts and features, though it supports operation down to 1.8V. Verify that the replacement part meets the specific voltage and temperature requirements of the original design, as the 24LCS52 is optimized for the 2.2V to 5.5V range.