24AA65/P

Memory IC Overview

The Microchip Technology 24AA65/P is a 64 kbit (8K x 8) serial EEPROM utilizing an I2C interface. It operates within a voltage range of 1.8V to 6.0V and supports clock frequencies up to 100 kHz in standard mode. The device features a 64-byte input cache for efficient page writes, with a typical write cycle time of 2 ms per page. It includes programmable security options and a high-endurance block rated for 10 million cycles. Data retention exceeds 200 years, and it is housed in an 8-pin PDIP package.

Memory IC Feature Summary

• Features a relocatable 4K bit high-endurance memory block capable of 10 million erase/write cycles.
• Includes a 64-byte input cache to facilitate fast burst write loads across multiple pages.
• Offers programmable security options allowing write protection for up to fifteen contiguous 4K blocks.
• Supports bus expansion by connecting up to eight devices on the same I2C bus.

Memory IC Applications

• Advanced low-power nonvolatile code and data storage
• Personal communications systems requiring flexible memory management
• Applications needing frequent data updates with high endurance requirements

Memory IC Procurement Notes

Verify that the specific part number suffix corresponds to the PDIP-8 through-hole package configuration. Confirm the operating temperature range matches the Commercial grade specification (0°C to +70°C). Ensure the voltage supply aligns with the 1.8V to 6.0V operational limits defined for the 24AA65 series. Check for RoHS compliance status if required by assembly standards.

Memory IC Selection Notes

Select this component when a smart EEPROM with configurable security and high-endurance zones is required. It is suitable for designs needing up to 512K bits of contiguous memory via multi-device addressing. Consider the 64-byte cache feature for applications demanding high throughput during write operations. Ensure the system voltage remains within the 1.8V to 6.0V range for proper functionality.

Memory IC Part Context

This device belongs to the 24XX65 family, which also includes the 24LC65 and 24C65 variants. These models share identical functional architectures but differ in operating voltage ranges and industrial temperature specifications. The 24AA65 specifically targets lower voltage applications starting at 1.8V, whereas other family members may require higher minimum voltages.

Memory IC Replacement Considerations

Direct substitutes include the 24LC65 and 24C65 from the same manufacturer, provided voltage and temperature constraints are met. Verify pin compatibility and software register configurations before swapping between these family members.