34AA04T-I/SN

Overview

The 34AA04T-I/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 and an access time of 350 ns. The device operates within a supply voltage range of 1.7 V to 3.6 V, drawing a maximum active read current of 1.5 mA. It is housed in an SOIC-8 surface-mount package and supports operation across an industrial temperature range of -40°C to +85°C. Data retention is specified at 200 years.

Feature Summary

• Supports high-speed I2C communication up to 1 MHz for efficient data transfer
• Designed specifically for Serial Presence Detect (SPD) applications in DDR4 systems
• Provides non-volatile storage with long-term data retention capabilities

Applications

• DDR4 Serial Presence Detect (SPD) implementation
• System configuration data storage
• Low-voltage embedded memory systems

Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature grade (-40°C to +85°C) and 'SN' denotes the SOIC-8 package. Confirm that the 1.7 V to 3.6 V operating voltage aligns with your system's power rails, as this part does not support the full 5.5 V range found in other EEPROM families. Ensure compatibility with I2C bus protocols before integration.

Selection Notes

Select this component when designing DDR4 memory modules requiring SPD compliance. It is suitable for applications needing fast 1 MHz I2C access within a limited 3.6 V voltage window. Compare against the 24AA04 series if a wider 5.5 V supply range is required, or the 34AA04T-I/MNY if a TDFN package is preferred over SOIC-8.

Part Context

This part belongs to the 34AA04 family, which is optimized for DDR4 SPD functions. Unlike the general-purpose 24AA04 or 24LC04B series, the 34AA04 is tailored for memory module identification and timing parameter storage. It shares the I2C interface but differs in voltage tolerance and specific application targeting compared to broader EEPROM offerings.

Replacement Considerations

Public confirmed substitute: 34AA04-I/SN.