24LC64T-I/SN

Memory IC Overview

The Microchip Technology 24LC64T-I/SN is a 64-Kbit (8K x 8) serial EEPROM utilizing a two-wire I2C compatible interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device features a maximum access time of 900 ns, a page write buffer for 32 bytes, and a maximum write cycle time of 5 ms. It is housed in an 8-pin SOIC package with tape-and-reel packaging and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer via a two-wire serial bus protocol with Schmitt trigger inputs for noise suppression.
• Includes hardware write protection controlled by the WP pin to inhibit array writes when tied high.
• Features a 32-byte page write buffer to optimize data throughput during sequential write operations.
• Allows cascading up to eight devices on the same bus using three dedicated chip address pins.

Memory IC Applications

• Data logging systems requiring non-volatile storage for sensor readings or event timestamps
• Configuration memory for microcontrollers storing calibration constants or system parameters
• Embedded controllers needing reliable storage for user settings or operational modes

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape-and-reel quantity. Confirm the temperature grade corresponds to the intended operating environment. Ensure the voltage supply aligns with the 2.5V minimum requirement for this specific variant. Cross-reference the datasheet revision to confirm compatibility with existing design specifications.

Memory IC Selection Notes

Select this component when a standard I2C interface is required with a minimum operating voltage of 2.5V. Choose this part over lower-voltage variants if the system power rail does not drop below 2.5V. Consider the 8-pin SOIC package for through-hole or surface-mount assembly needs. Verify that the 400 kHz clock speed meets the system's communication bandwidth requirements.

Memory IC Part Context

This device belongs to the 24LC64 family of serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24AA64 and 24FC64 series but differs in minimum operating voltage and clock frequency capabilities. The 'T' suffix indicates tape-and-reel packaging, while 'I' denotes the industrial temperature rating.

Memory IC Replacement Considerations

Direct substitutes include other 24LC64 variants such as 24LC64-I/SN or 24LC64T-I/MC, provided the package and voltage specifications match. Verify that any replacement maintains the 2.5V minimum supply voltage and 400 kHz clock limit.