24LC256T-I/SNG

Memory IC Overview

The Microchip Technology 24LC256T-I/SNG is a 256-Kbit (32K x 8) serial electrically erasable PROM featuring an I²C-compatible two-wire interface. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device utilizes low-power CMOS technology, drawing a maximum write current of 3 mA and standby current of 1 µA. It includes a 64-byte page write buffer, hardware write protection, and supports up to eight devices on the same bus.

Memory IC Feature Summary

• Supports cascading up to eight devices on a single bus using functional address lines A0, A1, and A2.
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Features hardware write protection via the WP pin to inhibit write operations while maintaining read access.
• Provides over 4000V ESD protection and data retention exceeding 200 years.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status and check for any recent Product Change Notifications (PCN) regarding assembly sites or material updates. Ensure the selected variant aligns with the system's voltage requirements and bus topology constraints.

Memory IC Selection Notes

Select this component when a non-volatile memory solution requires I²C compatibility within a 2.5V to 5.5V operating range. Consider the 64-byte page write capability for efficient data handling. Evaluate the need for hardware write protection and multi-device addressing capabilities before finalizing the design architecture.

Memory IC Part Context

This part belongs to the 24XX256 family of serial EEPROMs, which also includes the 24AA256 and 24FC256 variants. These devices share similar architectural features but differ in minimum operating voltage and maximum clock frequency specifications. The 24LC256 specifically targets applications requiring operation down to 2.5V.

Memory IC Replacement Considerations

Direct substitutes include other members of the 24XX256 family such as the 24AA256 or 24FC256, provided their voltage and speed specifications meet the application requirements. Verify pinout compatibility and software protocol adherence when considering alternative manufacturers' equivalents.