24AA64/P

Memory IC Overview

The Microchip Technology 24AA64/P is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface and operates on a single supply voltage ranging from 1.7V to 5.5V. The device supports clock frequencies of up to 400 kHz, with a maximum active current of 3 mA and standby current of 1 µA. It includes a 32-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is available in industrial temperature ranges.

Memory IC Feature Summary

• Supports bidirectional data transmission over a two-wire serial bus with I2C compatibility.
• Includes a 32-byte page write buffer to facilitate efficient data storage operations.
• Features hardware write protection controlled by the WP pin to secure array data.
• Incorporates Schmitt trigger inputs and output slope control for improved signal integrity.

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Device identification and calibration data retention

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the 'P' designation indicates an 8-Lead PDIP package. Confirm the temperature grade corresponds to the intended operating environment, ensuring compliance with industrial specifications if necessary. Cross-reference the datasheet revision to ensure all electrical characteristics align with the design requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a low-pin-count EEPROM with I2C interface is required for applications needing moderate storage density. The wide supply voltage range allows compatibility with various logic levels. Ensure the application can accommodate the through-hole mounting style associated with the PDIP package. Consider the page write limitations and acknowledge polling requirements for system timing constraints.

Memory IC Part Context

This part belongs to the 24XX64 family of 64-Kbit serial EEPROMs, which also includes the 24FC64 and 24LC64 variants. These devices share similar functional architectures but differ in maximum clock frequency and minimum operating voltage specifications. The 24AA64 variant is optimized for operation down to 1.7V, distinguishing it from other family members with different voltage thresholds.

Memory IC Replacement Considerations

Direct substitutes within the same package include the 24LC64/I/P and 24FC64/I/P. Note that the 24LC64 requires a minimum supply voltage of 2.5V, while the 24FC64 supports higher clock speeds. Verify voltage compatibility and interface timing requirements when substituting these parts.