... RAM Memory / Memory Module / DDR Memory DDR3 RAM DDR1, DDR2, DDR3 RAM Desktop Computer, laptop computer 128MB/256MB/ ... (max. ) 5) 2.5 V (SSTL-2 compatible) I/O for DDR I products, 1.8Vpower supply ... , differential data strobe (DQS) is transmitted/received with data, to be used in capturing data at the ... CK) 11) DLL aligns DQ and DQS transitions with CK transitions 12) Commands entered on each positive ...