34AA04T-E/SN

Overview

The 34AA04T-E/SN is a 4-kbit (512 x 8) serial electrically erasable programmable read-only memory (EEPROM) manufactured by Microchip Technology. 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 3.6 V and is housed in an SOIC-8 surface-mount package. It supports write cycle times of 5 ms and features data retention of 200 years. The component is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Supports high-speed 1 MHz I2C communication protocol
• Designed specifically for SPD applications in DDR4 systems
• Provides long-term non-volatile data retention

Applications

• System Parameter Data (SPD) storage for DDR4 memory modules
• Low-voltage embedded system configuration storage
• Industrial data logging in constrained environments

Procurement Notes

Verify the specific suffix 'E' against official Microchip documentation to confirm extended temperature or reliability specifications, as standard variants may differ. Ensure the SOIC-8 package matches your PCB footprint requirements. Confirm that the 3.6 V maximum voltage limit aligns with your system's power rails, as some EEPROMs support up to 5.5 V. Check humidity sensitivity levels for proper storage and reflow soldering profiles.

Selection Notes

Select this component when designing DDR4 memory modules requiring compliant SPD storage. The 1 MHz interface speed offers faster access than standard 400 kHz EEPROMs. The 1.7 V minimum operating voltage ensures compatibility with low-power systems. Verify that the 512-byte capacity meets your configuration data size needs before finalizing the design.

Part Context

This part belongs to the 34AA04 series, which is optimized for Serial Presence Detect (SPD) functions in modern DRAM modules. Unlike general-purpose EEPROMs, these devices are tailored to meet JEDEC standards for memory module identification and timing parameters. The T suffix indicates tape and reel packaging for automated assembly.

Replacement Considerations

The 34AA04-E/SN is a tube-packaged alternative with identical electrical characteristics but different packaging. The 24AA04 series offers similar capacity but typically supports higher voltages up to 5.5 V. Verify pinout compatibility and voltage tolerances before substituting.