Hynix HMT351R7BFR8A-H9T8 User Manual
Rev. 1.2 / Dec. 2011
45
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
DDR3L-800 DDR3L-1066DDR3L-1333 Units
Maximum peak amplitude allowed for overshoot area. (See figure below)
0.4
0.4
0.4
V
Maximum peak amplitude allowed for undershoot area. (See figure below)
0.4
0.4
0.4
V
Maximum overshoot area above VDD (See figure below)
0.25
0.19
0.15
V-ns
Maximum undershoot area below VSS (See figure below)
0.25
0.19
0.15
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 )