H5PS5182GFRS6C datasheet(43/64 Pages) HYNIX

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H5PS5182GFRS6C Datasheet(PDF) 43 Page - Hynix Semiconductor

Part #	H5PS5182GFRS6C

Description	512Mb DDR2 SDRAM

Download	64 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

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43 / 64 page

Rev.1.7 / Feb. 2013

H5PS5162GFR series

to 0.5. For example, if an input clock has a worst case tCH (avg) of 0.48, the tAOF, min should be derated

by subtracting 0.02 x tCK (avg) from it, whereas if an input clock has a worst case tCH (avg) of 0.52, the

tAOF, max should be derated by adding 0.02 x tCK (avg) to it. Therefore, we have;

tAOF, min (derated) = tAC, min - [0.5 - Min(0.5, tCH (avg), min)] x tCK (avg)

tAOF, max (derated) = tAC, max + 0.6 + [Max(0.5, tCH (avg), max) - 0.5] x tCK (avg)

tAOF, min (derated) = Min (tAC, min, tAC, min - [0.5 - tCH (avg), min] x tCK (avg))

tAOF, max (derated) = 0.6 + Max (tAC, max, tAC, max + [tCH (avg), max - 0.5] x tCK (avg))

where tCH (avg), min and tCH (avg), max are the minimum and maximum of tCH (avg) actually measured

at the DRAM input balls.

Note that these deratings are in addition to the tAOF derating per input clock jitter, i.e. tJIT (duty) and

tERR(6-10per). However tAC values used in the equations shown above are from the timing parameter

table and are not derated. Thus the final derated values for tAOF are;

tAOF, min (derated _ final) = tAOF, min (derated) + {- tJIT (duty), max - tERR(6-10per),max}

tAOF, max (derated _ final) = tAOF, max (derated) + {- tJIT (duty), min - tERR(6-10per),min}

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