HMT325S6CFR8A Datasheet, PDF (28/50 Pages) Hynix Semiconductor – DDR3L SDRAM Unbuffered SODIMMs Based on 2Gb C-die

Clock, Data, Strobe and Mask Overshoot and Undershoot Specifications
AC Overshoot/Undershoot Specification for Clock, Data, Strobe and Mask
Parameter
DDR3L- DDR3L- DDR3L- DDR3L-
Units
800 1066 1333 1600
Maximum peak amplitude allowed for overshoot area. (See Figure below)
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 V
Maximum overshoot area above VDD (See Figure below)
0.25 0.19 0.15 0.13 V-ns
Maximum undershoot area below VSS (See Figure below)
0.25 0.19 0.15 0.13 V-ns
(CK, CK, DQ, DQS, DQS, DM)
See figure below for each parameter definition
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. 0.3 /Jun. 2012
28