24AA16T-E/SN

Memory IC Overview

The Microchip Technology 24AA16T-E/SN is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I²C compatible two-wire serial interface with maximum clock frequencies of 100 kHz below 2.5V and 400 kHz at or above 2.5V. The device features a 16-byte page write buffer, hardware write-protect capability via the WP pin, and extended temperature range operation from -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional data transmission over a two-wire serial bus protocol
• Includes Schmitt trigger inputs and filter circuits for noise suppression
• Features hardware write protection controlled by the WP pin state
• Provides acknowledge polling capability to determine internal write cycle completion

Memory IC Applications

• Data logging in industrial control systems
• Configuration storage for embedded microcontrollers
• Parameter retention in battery-powered devices

Memory IC Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the SOIC-8 package type required for your PCB layout. Confirm the 'E' suffix indicates the Extended temperature grade (-40°C to +125°C) suitable for harsh environments. Ensure the 'T' designation matches your specific reel or tube packaging requirements before finalizing orders.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is necessary, distinguishing it from the 2.5V minimum 24LC16B variant. Choose the Industrial (I) grade if the application environment remains within -40°C to +85°C to potentially optimize cost. Verify that the system design accommodates the open-drain SDA line requiring external pull-up resistors.

Memory IC Part Context

This part belongs to the 24XX16 family of 16-Kbit EEPROMs, which also includes the 24LC16B and 24FC16 variants. While sharing the same memory architecture and interface, these siblings differ in minimum operating voltage and maximum clock frequency specifications. The 24AA16 specifically targets applications requiring robust performance at lower supply voltages compared to other family members.

Memory IC Replacement Considerations

Direct functional substitutes include the 24AA16-I/SN for Industrial temperature grades and the 24LC16BT-E/SN for applications where the 2.5V minimum voltage threshold is acceptable.