厂商：Freescale
类别：16位单片机
厂商：Littelfuse
类别：瞬态抑制二极管阵列
厂商：Murata
类别： 微片变压器
厂商：Skyworks
类别：Circulators / Isolators
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DescriptionThe W9712G8JB is a 128M bits DDR2 SDRAM and speed involving -18, -25 and -3 Status: Mass ProductionFeaturesPower Supply: VDD, VDDQ = 1.8 V ± 0.1 V?Double Data Rate architecture: two data transfers per clock cycleCAS Latency: 3, 4, 5, 6 and 7Burst Length: 4 and 8Bi-directional, differential data strobes (DQS and /DQS ) are transmitted / received with dataEdge-aligned with Read data and center-aligned with Write dataDLL aligns DQ and DQS transitions with clock?Differential clock inputs (CLK and /CLK)?Data masks (DM) for write dataCommands entered on each positive CLK edge, data and data mask are referenced to both edges of /DQSPosted /CAS programmable additive latency supported to make command and data bus efficiencyRead Latency = Additive Latency plus CAS Latency (RL = AL + CL)?Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for better signal qualityAuto-precharge operation for read and write bursts?Auto Refresh and Self Refresh modes?Precharged Power Down and Active Power Down?Write Data Mask?Write Latency = Read Latency - 1 (WL = RL - 1)?Interface: SSTL_18