DDR/DDR-II RAM

Key Specifications/Special Features:

• DDR 400/333 and DDRII 533/667/800MHz
• 168/184/240-pin socket type dual in line memory module (DIMM)
• Power supply: 2.6V
• Data rate: 400/333/533/667/800Mbps (maximum)
• 2.5V (SSTL-2 compatible) I/O for DDR I products, 1.8V power supply for DDR II products
• Double data rate architecture, two data transfers per clock
• Bi-directional, data strobe (DQS) is transmitted/received with data, to be used in capturing data at the receiver
• Data inputs and outputs are synchronized with DQS
• DQS is edge aligned with data for read, center aligned with data for write
• Differential clock inputs (CK and CK)
• DLL aligns DQ and DQS transitions with CK transitions
• Commands entered on each positive CK edge, data referenced to both edges of DQS
• Auto pre-charge option for each burst access
• Programmable burst length: 2, 4, and 8
• Programmable/CAS latency (CL): 3
• Programmable output driver strength: normal/weak
• Refresh cycles: (8192 refresh cycles/64ms)
• 7.8Us maximum average periodic refresh interval
• 2 variations of refresh
• Automatic refresh

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Delivery Details:

Product Certifications:

Certificate Standard: CE Certificate Number: ATE20061988 Issue Date: 03-Oct-1998 Issued By: ACCURATE TECHNOLOGY CO. LTD Expiry Date: 03-Oct-2011 Scope/Range: Usb Flash drive,sd card,mp3/4

Certificate Standard: FCC Certificate Number: ATE20061991 Issue Date: 13-Oct-2006 Issued By: ACCURATE TECHNOLOGY CO. LTD Expiry Date: 13-Oct-2011 Scope/Range: SD Card,USB Drive,mp3/4 player

Certificate Standard: ROHS Certificate Number: A07011604R Issue Date: 07-Jan-2001 Issued By: AOV Testing Technology Co. Ltd Expiry Date: 07-Jan-2012 Scope/Range: MP3/4 Player,Usb Drive,SD Card