24AA044-E/SN

Memory IC Overview

The Microchip Technology 24AA044-E/SN is a 4-kbit (512 x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes a 2-Wire I2C interface with a maximum clock frequency of 1 MHz. The device operates within a supply voltage range of 1.7 V to 5.5 V and supports surface-mount installation in an SOIC-8 package. It features a data retention period of 200 years and functions across an extended industrial temperature range from -40°C to +125°C.

Memory IC Feature Summary

• Supports high-speed 1 MHz I2C communication for efficient data transfer
• Operates on low voltage supplies ranging from 1.7 V to 5.5 V
• Provides long-term non-volatile data storage with 200-year retention
• Designed for reliable operation in extreme industrial temperatures

Memory IC Applications

• Industrial control systems requiring robust data logging
• Automotive electronics operating in harsh thermal environments
• Consumer devices needing compact non-volatile configuration storage
• Embedded systems utilizing standard I2C bus architectures

Memory IC Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature grade (-40°C to +125°C) and 'SN' denotes the SOIC-8 package. Confirm RoHS compliance status through official documentation. Ensure design compatibility with 1.7V minimum supply requirements. Check for humidity sensitivity handling instructions during assembly. Validate that the 1 MHz clock speed meets system timing constraints.

Memory IC Selection Notes

Select this component when extended temperature performance is critical for the application environment. Choose this part over lower-grade variants if operation below -40°C or above +85°C is required. Consider the SOIC-8 footprint constraints against available PCB space. Evaluate the 1 MHz interface speed against slower 100 kHz alternatives if bandwidth is sufficient. Verify power supply stability within the 1.7V to 5.5V operational window.

Memory IC Part Context

This EEPROM belongs to the 24AA044 family, designed for general-purpose non-volatile memory applications. It shares architectural similarities with other 4-kbit I2C EEPROMs but distinguishes itself through its extended industrial temperature rating. The series is widely used in embedded systems where data persistence is essential under varying environmental conditions.

Memory IC Replacement Considerations

Direct substitutes include other 24AA044 variants with different packages or temperature grades, such as 24AA044-I/ST. Cross-reference pinouts and electrical specifications carefully when replacing with generic I2C EEPROMs. Ensure any replacement maintains the 1.7V minimum operating voltage and 1 MHz clock capability.