The DDR400 module for desktop is a double data rate module composed of CMOS Double Data Rate SDRAMs in TSOP-II 400mil 66pin package and one 2Kbit EEPROM in 8pin TSSOP(TSOP) package on a 184pin glass–epoxy printed circuit board. DDR400 is a dual in-line memory module and is intended for mounting onto 184-pins edge connector sockets. Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges of DQS. Range of operating frequencies, programmable latencies and burst lengths allow the same device to be useful for a variety of high bandwidth, high performance memory system applications. The DDR400 module for desktop is offered in quantities in 128MB up to 1GB capacities.

DLL aligns DQ and DQS transition with CK transition  Double-data-rate architecture  Bi-directional data strobe (DQS)  Differential clock inputs(CK and /CK)  Auto refresh and self refresh  8192 refresh cycles / 64ms  Power supply: VDD, VDDQ: 2.7V+/-0.1V  Programmable Burst length (2,4,8)  Serial Presence Detect with EEPROM

Award Name Date Location Media Editor Recommend 2005 Taiwan Computer DIY MAGAZINE

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A-DATA Part No. Capacity Description AD1U400K128M25-B 128MB ADATA DDR U-DIMM 400 16X16 128MB 2.5 - BULK AD1U400K128M25 128MB ADATA DDR U-DIMM 400 16X16 128MB 2.5 AD1U400H256M3-B 256MB ADATA DDR U-DIMM 400 32X8 256MB 3 - BULK AD1U400H256M25 256MB ADATA DDR U-DIMM 400 32X8 256MB 2.5 AD1U400E256M3-R 256MB ADATA DDR U-DIMM 400 32X16 256MB 3 - RETAIL AD1U400H256M25-S 256MB ADATA DDR U-DIMM 400 32X8 256MB 2.5 - SINGLE TRAY AD1U400H256M3-R 256MB ADATA DDR U-DIMM 400 32X8 256MB 3 - RETAIL AD1U400E256M3 256MB ADATA DDR U-DIMM 400 32X16 256MB 3 AD1U400E256M3-B 256MB ADATA DDR U-DIMM 400 32X16 256MB 3 - BULK AD1U400H256M25-B 256MB ADATA DDR U-DIMM 400 32X8 256MB 2.5 - BULK AD1U400H256M3 256MB ADATA DDR U-DIMM 400 32X8 256MB 3 AD1U400H256M25-R 256MB ADATA DDR U-DIMM 400 32X8 256MB 2.5 - RETAIL AD1U400H512M3 512MB ADATA DDR U-DIMM 400 32X8 512MB 3 AD1U400A512M25 512MB ADATA DDR U-DIMM 400 64X8 512MB 2.5 AD1U400A512M25-B 512MB ADATA DDR U-DIMM 400 64X8 512MB 2.5 - BULK AD1U400H512M3-B 512MB ADATA DDR U-DIMM 400 32X8 512MB 3 - BULK AD1U400H512M25-2 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 - DUAL-KIT RETAIL AD1U400A512M3-DRH 512MB ADATA DDR U-DIMM 400 64X8 512MB 3-DUAL RETAIL+HS AD1U400A512M3 512MB ADATA DDR U-DIMM 400 64X8 512MB 3 AD1U400A512M3-B 512MB ADATA DDR U-DIMM 400 64X8 512MB 3 - BULK AD1U400H512M25-S 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 - SINGLE TRAY AD1U400E512M3 512MB ADATA DDR U-DIMM 400 32X16 512MB 3 AD1U400H512M25 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 AD1U400A512M25-2 512MB ADATA DDR U-DIMM 400 64X8 512MB 2.5 - DUAL-KIT RETAIL AD1U400A512M3-BH 512MB ADATA DDR U-DIMM 400 64X8 512MB 3-BULK+HS AD1U400H512M25-R 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 - RETAIL AD1U400A512M3-RHS 512MB ADATA DDR U-DIMM 400 64X8 512MB 3-RETAIL+HS AD1U400A512M3-2 512MB ADATA DDR U-DIMM 400 64X8 512MB 3 - DUAL-KIT RETAIL AD1U400H512M25-B 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 - BULK AD1U400A512M25-R 512MB ADATA DDR U-DIMM 400 64X8 512MB 2.5 - RETAIL AD1U400A512M3-S 512MB ADATA DDR U-DIMM 400 64X8 512MB 3 - SINGLE TRAY AD1U400H512M25-BH 512MB ADATA DDR U-DIMM 400 32X8 512MB 2.5 - BULK+HS AD1U400A512M3-R 512MB ADATA DDR U-DIMM 400 64X8 512MB 3 - RETAIL AD1U400A1G25-2 1GB ADATA DDR U-DIMM 400 64X8 1GB 2.5 - DUAL-KIT RETAIL AD1U400A1G3-DRH 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - DUAL RETAIL+HS AD1U400A1G3-2 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - DUAL-KIT RETAIL AD1U400A1G3-RHS 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - RETAIL+HS AD1U400A1G25-R 1GB ADATA DDR U-DIMM 400 64X8 1GB 2.5 - RETAIL AD1U400A1G3-R 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - RETAIL AD1U400A1G25 1GB ADATA DDR U-DIMM 400 64X8 1GB 2.5 AD1U400A1G25-B 1GB ADATA DDR U-DIMM 400 64X8 1GB 2.5 - BULK AD1U400A1G3-S 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - SINGLE TRAY AD1U400A1G3 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 AD1U400A1G3-B 1GB ADATA DDR U-DIMM 400 64X8 1GB 3 - BULK AD1U400A1G3-BH 1GB ADATA DDR U-DIMM 400 64X8 1GB 3-BULK+HS