24AA16-I/ST

Memory IC Overview

The Microchip Technology 24AA16-I/ST is a 16-Kbit (2K x 8) Electrically Erasable PROM featuring an I²C compatible two-wire serial 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 supports page writes of up to 16 bytes with a maximum write cycle time of 5 ms. It includes hardware write protection via the WP pin, Schmitt trigger inputs for noise suppression, and output slope control. Operating temperatures range from -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal active and standby currents.
• Hardware write-protect capability that inhibits write operations across the entire memory array when the WP pin is tied high.
• Integrated 16-byte page write buffer allowing efficient data transfer without requiring individual byte write cycles.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices
• Industrial control applications

Memory IC Procurement Notes

Verify the specific suffix 'I/ST' corresponds to the Industrial temperature grade (-40°C to +85°C) and TSSOP-8 package. Confirm the datasheet revision matches the required specifications. Ensure the ordering code aligns with the manufacturer's current production status and RoHS compliance requirements before finalizing procurement.

Memory IC Selection Notes

Select this component for designs requiring low-voltage operation starting at 1.7V. The 400 kHz clock speed is suitable for standard I²C buses. Consider the 16-byte page buffer for write efficiency. Verify system voltage levels against the 100 kHz limit below 2.5V. Ensure the TSSOP-8 package fits the PCB layout constraints.

Memory IC Part Context

This part belongs to the 24XX16 family, which also includes the 24LC16B and 24FC16 variants. While sharing similar architecture, the 24AA16 is distinguished by its 1.7V minimum operating voltage compared to the 24LC16B's 2.5V minimum. It shares features like the 400 kHz clock rate with the 24LC16B but differs from the 24FC16 which supports 1 MHz speeds.

Memory IC Replacement Considerations

Direct functional substitutes within the same family include the 24AA16T-I/ST (tape and reel packaging). Other variants like 24LC16B or 24FC16 require voltage level verification due to different minimum operating voltages and clock frequency capabilities.