24LCS52T-I/MC

Memory IC Overview

The Microchip Technology 24LCS52T-I/MC is a 2 Kbit (256 x 8) serial Electrically Erasable PROM featuring an I²C-compatible 2-wire interface. It operates within a supply voltage range of 2.2 V to 5.5 V and supports a maximum clock frequency of 400 kHz. The device includes software write protection for the lower 128 bytes and hardware write protection for the entire array 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 2-wire serial communication compatible with the I²C bus protocol.
• Provides dual-layer write protection including permanent software protection for half the array and hardware protection for the full array.
• Features Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Includes a page write buffer allowing up to 16 bytes of data to be written in a single operation.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices
• Industrial control applications

Memory IC Procurement Notes

Verify the specific suffix 'MC' corresponds to the MSOP package type as defined in the official datasheet. Confirm that the 'I' designation matches the required industrial temperature range of -40°C to +85°C for your application environment. Ensure the voltage supply meets the minimum 2.2 V requirement for 400 kHz operation.

Memory IC Selection Notes

Select this component when a 2 Kbit EEPROM with high-speed 400 kHz I²C support is required. It is suitable for designs needing robust noise immunity through Schmitt triggers and flexible write protection schemes. Consider the MSOP package dimensions if space constraints exist on the PCB layout.

Memory IC Part Context

This part belongs to the 24XXX52 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA52 but offers higher speed compatibility at 400 kHz across its operating voltage range, whereas other variants may limit speed at lower voltages.

Memory IC Replacement Considerations

The 24LC52 series serves as a functional equivalent within the same family, though voltage ranges may differ. Verify pinout compatibility and electrical specifications before substitution.

Memory IC FAQ

How is the software write protection reset?

The software write-protect fuse can be reset by applying a voltage of VCC + 5.5V to the WP pin for 1µS before sending the reset command sequence.

What happens if a page write crosses a physical page boundary?

If a page write attempts to cross a boundary, the data wraps around to the beginning of the current page, overwriting previously stored data instead of proceeding to the next page.