24AA512-I/W17K

Memory IC Overview

The Microchip Technology 24AA512-I/W17K is a 512 Kbit (64K x 8) serial electrically erasable PROM featuring a two-wire I²C compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 100 kHz below 2.5V and 400 kHz at or above 2.5V. The device includes Schmitt trigger inputs for noise suppression, hardware write protection via the WP pin, and a 128-byte page write buffer. It supports up to eight devices on the same bus and offers data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Supports cascading up to eight devices on a single bus using configurable chip select address lines.
• Includes hardware write protection controlled by the WP pin to inhibit array writes while maintaining read access.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications utilizing serial interfaces
• Industrial embedded systems operating within specified temperature ranges

Memory IC Procurement Notes

Verify the specific package suffix against official Microchip documentation to confirm physical dimensions and lead configuration. Confirm that the 'I' designation matches the required industrial temperature range for your application environment. Ensure compatibility with the host controller's I²C voltage levels and pull-up resistor requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a 512 Kbit capacity is required with a standard two-wire serial interface. It is suitable for designs needing operation down to 1.7V, distinguishing it from variants requiring higher minimum voltages. Consider the available package options if space constraints exist, as the device family supports multiple form factors including DIP, SOIC, and TSSOP.

Memory IC Part Context

This part belongs to the 24XX512 series of serial EEPROMs manufactured by Microchip Technology. The series shares common architectural features but varies in voltage specifications and clock speeds across different sub-models like the 24LC512 and 24FC512. The 24AA512 variant specifically targets low-voltage applications starting at 1.7V.

Memory IC Replacement Considerations

The 24LC512 serves as a functional substitute within the same family, though it requires a minimum supply voltage of 2.5V compared to the 1.7V minimum of the 24AA512. Verify voltage compatibility and clock frequency limitations when substituting.