24AA16T-I/MC

Memory IC Overview

The Microchip Technology 24AA16T-I/MC is a 16-Kbit (2K x 8) serial electrically erasable PROM featuring an I²C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz at VCC ≥ 2.5V, and 100 kHz at VCC < 2.5V. The device utilizes low-power CMOS technology, drawing a maximum of 1 mA during active read operations and 3 mA during write cycles, while consuming only 1 μA in standby mode. It includes a 16-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead DFN package and supports industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer over a standard two-wire serial bus with up to eight slave addresses selectable via block bits.
• Features a 16-byte page write buffer that allows efficient sequential data storage without requiring individual byte write commands.
• Includes hardware write protection controlled by the WP pin to prevent accidental modification of memory contents when tied to VCC.
• Integrates Schmitt trigger inputs and filtered signal paths to suppress noise spikes and ensure reliable operation on noisy buses.

Memory IC Applications

• Low-power portable consumer electronics requiring non-volatile data retention
• Industrial control systems needing hardware write protection for critical parameters
• Automotive applications qualified under AEC-Q100 standards
• Data acquisition modules storing calibration constants or configuration settings

Memory IC Procurement Notes

Verify the specific suffix 'I/MC' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 8-lead DFN package type. Confirm that the ordering quantity aligns with the manufacturer's reel specifications, as tape-and-reel packaging typically requires multiples of the standard reel count. Ensure compatibility with the system's I²C pull-up resistor values based on the operating voltage and desired clock speed.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with a small form factor is required. The 24AA16T-I/MC is suitable for designs operating below 2.5V where the 100 kHz clock limit applies. Compare against the 24LC16B if a higher minimum voltage of 2.5V is acceptable, or the 24FC16 if 1 MHz operation is necessary. Ensure the application can accommodate the 5 ms maximum self-timed write cycle duration.

Memory IC Part Context

This part belongs to the 24XX16 family of serial EEPROMs, which shares functional similarities with the 24LC16B and 24FC16 devices. The primary distinctions lie in the supply voltage range and maximum clock frequency capabilities. While the 24LC16B requires a minimum of 2.5V, the 24AA16 series supports operation down to 1.7V. The 24FC16 variant offers higher speed performance up to 1 MHz. All variants utilize the same I²C protocol and pinout structure.

Memory IC Replacement Considerations

Direct substitutes within the same package and electrical profile include other 24AA16 variants in different packages such as SOIC or MSOP. Cross-family replacements like the 24LC16B are compatible functionally but require a minimum supply voltage of 2.5V. The 24FC16 offers faster speeds but may not be suitable for sub-2.5V applications.