Class I or Class II, Externally Source Series terminated output 12 load 9 Example of SSTL_2, Class I, buffer with symmetrically double parallel terminated 13 output load Tables 1 Supply voltage levels 3 2a Input dc logic levels 3 2b Input ac logic levels 3 3 AC input test conditions 4 4...
i am using cyclone ii fpga to interface to ddr ram. by the handbook of cyclone ii, it's top and bottom banks support sstl_2 class i and ii io standards. so what's the internal differences(just at the output buffer) in fpga between...
1 : why the sstl-3 class2 is in ep1c6,and the ep3c5 have not it ? 2 :when i use the ep3c5 ,how i set the pin to instead of sstl-3 class2 ? 3: when i use the 3p3c5,and set one of bank SSTL-2, then the 1) (IO vref ) of the bank is seted 2.5v ? or ...
部件名SSTVN16859 功能描述13-bit1:2SSTL_2registeredbufferforDDR Download11 Pages Scroll/Zoom 100% 制造商PHILIPS [NXP Semiconductors] 网页http://www.nxp.com 标志 类似零件编号 - SSTVN16859 制造商部件名数据表功能描述 Fairchild SemiconductorSSTVN16857 ...
1 : why the sstl-3 class2 is in ep1c6,and the ep3c5 have not it ? 2 :when i use the ep3c5 ,how i set the pin to instead of sstl-3 class2 ? 3: when i use the 3p3c5,and set one of bank SSTL-2, then the 1) (IO vref ) of the bank is seted 2.5v ? or ...
1 : why the sstl-3 class2 is in ep1c6,and the ep3c5 have not it ? 2 :when i use the ep3c5 ,how i set the pin to instead of sstl-3 class2 ? 3: when i use the 3p3c5,and set one of bank SSTL-2, then the 1) (IO vref ) of the bank is seted 2.5v ? or ...