W9725G6KB中文资料双倍数据传输速率同步动态随机存取内存-2nd generation(第二代)数据手册Winbond规格书

描述 Description

The W9725G6KB is a 256M bits DDR2 SDRAM, and speed involving -18, -25, 25I and -3

特性 Features

•Power Supply: VDD, VDDQ = 1.8 V ± 0.1 V
• CAS Latency: 3, 4, 5, 6 and 7
• Bi-directional, differential data strobes (DQS and /DQS ) are transmitted / received with data
• DLL aligns DQ and DQS transitions with clock
• Data masks (DM) for write data
• Posted /CAS programmable additive latency supported to make command and data bus efficiency
• Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for better signal quality
• Auto Refresh and Self Refresh modes
• Write Data Mask
• Interface: SSTL_18
• Package:WBGA 84 Ball (8X12.5 mm2), RoHS compliant