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Microchip Unveils 4Kb Serial Presence Detect EEPROM for DDR4 SDRAM Modules

Mon, 04/21/2014 - 1:00pm
WDD Staff

Microchip (Chandler, AZ) has announced a new 4Kb I2C Serial Presence Detect (SPD) EEPROM device, the 34AA04, which is designed to work with the next generation of Double Data Rate 4 (DDR4) SDRAM modules used in high-speed PCs and laptops, while also supporting older DDR2/3 platforms. The 34AA04 is capable of operation across a broad voltage range (1.7 to 3.6 V). This device is JEDEC JC42.4 (EE1004-v) Serial Presence Detect (SPD) compliant and compatible with DDR4 SDRAM modules. Features include:

  • Reversible software write protection for each of 4 independent 128 x 8-bit blocks.
  • A new SMBus compatible bus time out.
  • Page write capability of up to 16 bytes of data. 
  • 3 address pins, which allow up to 8 devices on the same bus.

For more information visit microchip.com.

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