Hynix 4GB DDR3 PC3-12800 HMT351R7CFR4C-PB Manuel D’Utilisation
Codes de produits
HMT351R7CFR4C-PB
Rev. 1.0 / Jul. 2012
44
Clock, Data, Strobe and Mask Overshoot and Undershoot Specifications
Clock, Data, Strobe and Mask Overshoot and Undershoot Definition
AC Overshoot/Undershoot Specification for Clock, Data, Strobe and Mask
Parameter
DDR3-
800
DDR3-
1066
DDR3-
1333
DDR3-
1600
DDR3-
1866
Units
Maximum peak amplitude allowed for overshoot area. (See Figure below)
0.4
0.4
0.4
0.4
0.4
V
Maximum peak amplitude allowed for undershoot area. (See Figure below)
0.4
0.4
0.4
0.4
0.4
V
Maximum overshoot area above VDD (See Figure below)
0.25
0.19
0.15
0.13
0.11 V-ns
Maximum undershoot area below VSS (See Figure below)
0.25
0.19
0.15
0.13
0.11 V-ns
(CK,
CK
, DQ, DQS,
DQS
, DM)
See figure below for each parameter definition
M axim um A m plitude
O vershoot A rea
V D D Q
V SSQ
M axim um A m plitu de
U ndershoot A rea
T im e (ns)
Clock, D ata Strobe and M ask O vershoot and U ndershoot D efinition
V olts
(V )