24AA16-I/SN

Memory IC Overview

The Microchip Technology 24AA16-I/SN 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 operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 400 kHz at voltages above 2.5V and 100 kHz below 2.5V. It utilizes low-power CMOS technology with standby current up to 1 μA and active read current up to 1 mA. The component includes hardware write protection, Schmitt trigger inputs for noise suppression, and output slope control. It supports page writes of up to 16 bytes and offers data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Supports bidirectional two-wire serial communication compatible with standard I²C bus protocols
• Includes hardware write-protect functionality via the WP pin to inhibit array writing
• Features internal address pointer for sequential reading and automatic incrementing
• Provides noise suppression through Schmitt trigger inputs and output slope control

Memory IC Applications

• Data logging in industrial monitoring systems
• Configuration storage for embedded controllers
• Calibration data retention in sensor modules
• Parameter storage in consumer electronics devices

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the 8-Lead SOIC package. Confirm the specific revision level matches the design requirements. Ensure compatibility with the system's I²C bus voltage levels and pull-up resistor configurations. Check for any recent Product Change Notifications (PCNs) affecting marking or packaging details before finalizing procurement.

Memory IC Selection Notes

Select this component when a 16-Kbit non-volatile memory solution is required with low power consumption and robust noise immunity. It is suitable for applications needing hardware-level write protection and support for both byte and page write operations. Consider the 1.7V minimum operating voltage for battery-powered designs. Verify that the 8-pin SOIC package fits the available PCB footprint and assembly constraints.

Memory IC Part Context

This part belongs to the 24XX16 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC16B and 24FC16, which share similar interfaces but differ in 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 basic I²C protocol and memory organization.

Memory IC Replacement Considerations

Direct replacements within the same package include other 24AA16 variants with different temperature grades or suffixes. Cross-family substitutes like the 24LC16B require verification of the minimum supply voltage compatibility. Ensure any replacement maintains the 8-pin SOIC form factor and I²C interface timing specifications.