24AA64-I/S16K

Memory IC Overview

The Microchip Technology 24AA64-I/S16K is a 64-Kbit (8K x 8) serial EEPROM utilizing an I2C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V, supporting clock frequencies of up to 400 kHz at voltages above 2.5V and 100 kHz below that threshold. The device features a 32-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It offers data retention exceeding 200 years and endurance of over one million erase/write cycles.

Memory IC Feature Summary

• Supports cascading up to eight devices on a single bus using three dedicated chip address pins.
• Includes a 32-byte page write buffer to optimize data transfer efficiency.
• Features hardware write protection controlled by the WP pin to prevent unintended array modifications.

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics with low-power memory needs
• Automotive applications compatible with AEC-Q100 qualified packages

Memory IC Procurement Notes

Verify the specific package suffix 'S16K' against official Microchip documentation to confirm it denotes a wafer-level or die form factor rather than a standard surface-mount package. Confirm temperature range compliance with Industrial specifications (-40°C to +85°C). Ensure ordering requirements align with factory special order protocols if applicable.

Memory IC Selection Notes

Select this component for designs requiring low-voltage operation down to 1.7V and high-density storage in a compact footprint. Consider the 24LC64 variant if the system minimum voltage is strictly 2.5V or higher. Evaluate the 24FC64 if higher clock speeds up to 1 MHz are required within the valid voltage range.

Memory IC Part Context

This part belongs to the 24XX64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA64, 24FC64, and 24LC64, which share similar functional architectures but differ in voltage ranges, clock speeds, and qualification standards like AEC-Q100 automotive grading.

Memory IC Replacement Considerations

Direct substitutes include other 24AA64 variants with different package suffixes (e.g., SOIC, TSSOP) if the current package is unavailable. Cross-referencing with 24LC64 or 24FC64 requires verifying voltage and speed compatibility.