Memory Ram sdram 512mb

Memory Ram sdram 512mb 1.Frequency: 133MHZ 2.Chips of memory: hynix ,Micron,NanYa 3.Good after-serve

Memory Ram sdram  512mb

128MB/256MB/512MB/1G/2G1) DDR 400/333 & DDRII 533/667/800 MHz.2) 168/184/240-pin socket type dual in line memory module (DIMM)

3) 2.6V power supply4) Data rate: 400/333/533/667/800Mbps (max) 5) 2.5 V (SSTL-2 compatible) I/O for DDR I products, 1.8Vpower supply for DDR II products 6) Double-data-rate architecture, two data transfers per clock cycle 7) Bi-directional, differential data strobe (DQS) is transmitted/received with data, to be

   used in capturing data at the receiver.8) Data inputs and outputs are synchronzed with DQS9) DQS is edge aligned with data for read, center aligned with data for write.10) Differential clock inputs (CK and CK)11) DLL aligns DQ and DQS transitions with CK transitions12) Commands entered on each positive CK edge: Data and data mask referenced to

     both edges of DQS13) Four internal banks for concurrent operation (component). 14) Data mask(DM) for write data. 15) Auto precharge option for each burst access16) Programmable burst length: 2, 4, 8 17) Programmable/CAS latency (CL): 3 18) Programmable output driver strength: Normal/weak 19) Refresh cycles: (8192 refresh cycles/64ms) .20) 7.8US maximum average periodic refresh interval.21) Posted CAS by programmable additive latency for better command and data bus

     efficiency 22) Off-chip-driver impedance adjustment and on-die-termination for better signal quality .23) DQS can be disabled for single-ended data strobe operation 24) 2 variations of refresh25) Auto refresh 26) Self refresh

Memory Ram sdram 512mb