24AA64F-I/P

Memory IC Overview

The Microchip Technology 24AA64F-I/P is a 64 Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a 2-Wire I2C compatible serial interface with a maximum clock frequency of 400 kHz. The device operates on a single supply voltage ranging from 1.7V to 5.5V. It includes hardware write-protect functionality for the upper quarter of the array and supports page writes of up to 32 bytes. The component is housed in an 8-Lead PDIP package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array
• Supports cascading up to eight devices on the same bus via address pins
• Schmitt trigger inputs provide noise suppression on data lines

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Industrial control systems utilizing I2C serial communication protocols

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the 'P' designation indicates an 8-Lead PDIP configuration. Confirm the temperature grade corresponds to your operational environment requirements. Ensure compatibility with the system's I2C bus voltage levels before integration. Cross-reference the manufacturer part number against official distributor catalogs to confirm authenticity and current availability status.

Memory IC Selection Notes

Select this component when a 64 Kbit capacity is sufficient for the application's data storage needs. The 400 kHz clock speed offers a balance between performance and power consumption compared to higher-speed variants. The wide 1.7V to 5.5V operating range allows flexibility in power supply design. Consider the PDIP package only if through-hole mounting is necessary for mechanical stability or prototyping purposes.

Memory IC Part Context

This part belongs to the 24AA64F/24LC64F/24FC64F family of 64 Kbit serial EEPROMs. While sharing similar memory architecture and interface protocols, the 24AA64F is distinguished by its 1.7V minimum operating voltage and 400 kHz maximum clock frequency. This differentiates it from the 24FC64F variant, which supports 1 MHz speeds, and the 24LC64F, which requires a 2.5V minimum supply voltage.

Memory IC Replacement Considerations

The 24AA64F-I/SN serves as a direct pin-compatible replacement offering the same electrical specifications in an 8-SOIC surface-mount package. Designers requiring a smaller footprint may consider the MSOP or TSSOP variants within the same series, provided the board layout accommodates the respective package dimensions.