34AA04-E/SN

Overview

The 34AA04-E/SN is a 4-kbit serial electrically erasable programmable read-only memory (EEPROM) manufactured by Microchip Technology. It features a 512 x 8 organization and 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 3.6 V and is housed in an SOIC-8 package. It supports surface mount installation and offers a data retention period of 200 years. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Supports high-speed 1 MHz I2C communication for efficient data transfer
• Designed specifically for SPD applications in DDR4 systems
• Provides long-term non-volatile data storage with 200-year retention
• Operates within a wide industrial temperature range

Applications

• System Parameter Data (SPD) for DDR4 memory modules
• Industrial control systems requiring robust data storage
• Embedded systems operating in extreme temperature environments

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature grade (-40°C to +125°C) as defined in official documentation. Confirm the package type matches the required PCB footprint, which is SOIC-8 for this variant. Ensure compatibility with the 1.7 V to 3.6 V supply voltage constraints of the target application. Check for any recent Product Change Notifications regarding assembly sites or materials that may affect integration.

Selection Notes

Select this component when SPD functionality for DDR4 is required alongside extended temperature resilience. The 1 MHz clock speed offers faster access compared to standard 100 kHz EEPROMs. Consider the 3.6 V maximum voltage limit when designing power rails. The SOIC-8 package facilitates automated surface mount assembly. Verify that the 4-kbit capacity meets the system's configuration data requirements without excess overhead.

Part Context

This part belongs to the 34AA04 series, which is optimized for System Parameter Data (SPD) applications. Unlike general-purpose EEPROMs, these devices are tailored for memory module identification and configuration. The 'E' suffix denotes the extended temperature variant, distinguishing it from commercial grade parts. It shares the same pinout and basic functionality as other 4-kbit I2C EEPROMs but focuses on SPD compliance.

Replacement Considerations

Direct substitutes include other 34AA04 variants with compatible packages. Verify if the commercial grade version meets thermal requirements. Cross-reference with AT34C04 series for similar capacity and interface, noting potential differences in temperature ranges and packaging options.