HMT112U7BFR8C-G7 Datasheet, PDF (30/51 Pages) Hynix Semiconductor – 240pin DDR3 SDRAM Registered DIMM

Clock, Data, Strobe and Mask Overshoot and Undershoot Specifications
AC Overshoot/Undershoot Specification for Clock, Data, Strobe and Mask
Parameter
DDR3L-
800
Maximum peak amplitude allowed for overshoot area. (See figure below)
0.4
Maximum peak amplitude allowed for undershoot area. (See figure below) 0.4
Maximum overshoot area above VDD (See figure below)
0.25
Maximum undershoot area below VSS (See figure below)
0.25
(CK, CK, DQ, DQS, DQS, DM)
DDR3L-
1066
0.4
0.4
0.19
0.19
DDR3L-
1333
0.4
0.4
0.15
0.15
Units
V
V
V-ns
V-ns
M axim um Am plitude
Overshoot Area
V o lts
(V)
VDDQ
VSSQ
M axim um Am plitude
Tim e (ns)
Undershoot Area
Clock, Data Strobe and M ask O vershoot and Undershoot Definition
Clock, Data, Strobe and Mask Overshoot and Undershoot Definition
Rev. 0.1 / Nov. 2009
30