24AA64T-I/SNG

Memory IC Overview

The Microchip Technology 24AA64T-I/SNG is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It features a two-wire serial interface compatible with I2C protocols, supporting clock frequencies up to 400 kHz at supply voltages of 2.5V to 5.5V and 100 kHz below 2.5V. The device operates within a voltage range of 1.7V to 5.5V and supports industrial temperature grades from -40°C to +85°C. It utilizes low-power CMOS technology with maximum active current of 3 mA and standby current of 1 µA.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using three hardware address pins for expanded addressing.
• Includes Schmitt trigger inputs and output slope control to suppress noise spikes and eliminate ground bounce.
• Features a 32-byte page write buffer to optimize data transfer efficiency during write operations.
• Provides hardware write protection via the WP pin to inhibit array writes while maintaining read access.

Memory IC Applications

• Industrial systems requiring non-volatile data storage with robust noise immunity
• Embedded controllers needing multiple EEPROM devices on a single I2C bus
• Low-power applications utilizing wide supply voltage ranges

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the SOIC-8 package type and tape-and-reel delivery format. Confirm the 'I' designation matches the required industrial temperature range specifications for your application environment. Ensure compatibility with the host controller's I2C voltage levels before integration.

Memory IC Selection Notes

Select this component when a 64-Kbit capacity is required alongside hardware addressability for multi-device bus configurations. Consider the 24AA64 series over other variants if operation down to 1.7V is necessary, distinguishing it from higher-voltage-only counterparts. Evaluate the page write buffer size against application throughput requirements.

Memory IC Part Context

This part belongs to the 24XX64 family of serial EEPROMs manufactured by Microchip Technology. The family includes variations such as the 24LC64 and 24FC64, which differ primarily in minimum operating voltage and maximum clock frequency capabilities. All share the same fundamental architecture and interface protocol.

Memory IC Replacement Considerations

Direct substitutes include other 24AA64 variants with different packaging options, such as 24AA64T-I/ST or 24AA64T-I/MC. Cross-family replacements like the 24LC64 are possible only if the system voltage remains above 2.5V.