HMT325S6CFR8C Datasheet, PDF (27/48 Pages) Hynix Semiconductor – DDR3 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
DDR3- DDR3- DDR3- DDR3-
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
Volts
(V)
VDDQ
VSSQ
Maximum Amplitude
Overshoot Area
Maximum Amplitude
Time (ns)
Undershoot Area
Clock, Data, Strobe and Mask Overshoot and Undershoot Definition
Rev. 1.0/Sep. 2012
27