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H5PS5182GFRS6C Datasheet(PDF) 60 Page - Hynix Semiconductor |
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H5PS5182GFRS6C Datasheet(HTML) 60 Page - Hynix Semiconductor |
60 / 64 page Rev.1.7 / Feb. 2013 60 H5PS5162GFR series 31. These parameters are specified per their average values, however it is understood that the following relationship between the average timing and the absolute instantaneous timing holds at all times. (Min and max of SPEC values are to be used for calculations in the table below. Example: For DDR2-1066, tCH(abs),min = ( 0.48 x 1875 ps ) - 75 ps = 825 ps 32. tHP is the minimum of the absolute half period of the actual input clock. tHP is an input parameter but not an input specification parameter. It is used in conjunction with tQHS to derive the DRAM output timing tQH. The value to be used for tQH calculation is determined by the following equation; tHP = Min ( tCH(abs), tCL(abs) ), where, tCH(abs) is the minimum of the actual instantaneous clock HIGH time; tCL(abs) is the minimum of the actual instantaneous clock LOW time; Parameter Symbol DDR2-1066 Units Notes min max Clock period jitter tJIT(per) -90 90 ps 30 Clock period jitter during DLL locking period tJIT(per,lck) -80 80 ps 30 Cycle to cycle clock period jitter tJIT(cc) -180 180 ps 30 Cycle to cycle clock period jitter during DLL lock- ing period tJIT(cc,lck) -160 160 ps 30 Cumulative error across 2 cycles tERR(2per) -132 132 ps 30 Cumulative error across 3 cycles tERR(3per) -157 157 ps 30 Cumulative error across 4 cycles tERR(4per) -175 175 ps 30 Cumulative error across 5 cycles tERR(5per) -188 188 ps 30 Cumulative error across n cycles, n=6...10, inclusive tERR(6~10per) -250 250 ps 30 Cumulative error across n cycles, n=11...50, inclusive tERR(11~50per) -425 425 ps 30 Duty cycle jitter tJIT(duty) -75 75 ps 30 Parameter Symbol min max Units Absolute clock period tCK(abs) tCK(avg),min+tJIT(per),min tCK(avg),max+tJIT(per),max ps Absolute clock HIGH pulse width tCH(abs) tCH(avg),min x tCK(avg),min + tJIT(duty),min tCH(avg),max x tCK(avg),max + tJIT(duty),max ps Absolute clock LOW pulse width tCL(abs) tCL(avg),min x tCK(avg),min + tJIT(duty),min tCL(avg),max x tCK(avg),max + tJIT(duty),max ps |
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