24AA16-E/P

Memory IC Overview

The Microchip Technology 24AA16-E/P is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I²C protocols. The device supports single-supply operation down to 1.7V and utilizes low-power CMOS technology, drawing a maximum read current of 1 mA and standby current of 1 μA at industrial temperatures. It offers hardware write protection via the WP pin and includes Schmitt trigger inputs for noise suppression.

Memory IC Feature Summary

• Supports bidirectional data transmission over a two-wire serial bus using standard I²C protocol
• Includes a 16-byte page write buffer to optimize write operations across memory blocks
• Features hardware write-protect capability that inhibits all write cycles when the WP pin is tied high
• Incorporates Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce

Memory IC Applications

• Data logging in portable electronic devices requiring non-volatile storage
• Configuration parameter storage in embedded systems
• Calibration data retention in industrial instrumentation
• Device identification and serial number storage in manufacturing

Memory IC Procurement Notes

Verify the specific temperature grade suffix 'E' corresponds to the extended range requirement (-40°C to +125°C). Confirm the PDIP package designation matches the through-hole mounting needs. Ensure the voltage supply aligns with the 1.7V minimum operational threshold specified for the 24AA16 series. Cross-reference the datasheet revision to confirm electrical characteristics remain consistent with the intended design.

Memory IC Selection Notes

Select this component when an I²C-compatible EEPROM with extended temperature reliability is required. The 24AA16-E/P provides sufficient density for small data sets while maintaining low power consumption. Consider the PDIP package for prototyping or applications where surface-mount assembly is not feasible. Verify system voltage levels support the 1.7V lower limit for reliable operation across the full industrial and extended temperature ranges.

Memory IC Part Context

This part belongs to the 24XX16 family of 16-Kbit serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24LC16B and 24FC16 variants, differing primarily in operating voltage ranges and clock speeds. The 24AA16 specifically supports operation down to 1.7V, distinguishing it from the 2.5V minimum 24LC16B. All variants utilize the same I²C addressing scheme and pinout structure.

Memory IC Replacement Considerations

Direct substitutes include other 24AA16 variants with different packages such as 24AA16-I/MC or 24AA16T-E/ST, provided the temperature grade and package type are acceptable. The 24LC16B serves as a functional alternative if the system voltage does not drop below 2.5V.