Datasheet

Rev. 1.0 / May. 2014 42
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
L-800
DDR3
L-1066
DDR3
L-1333
DDR3
L-1600
DDR3
L-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
Maximum Amplitude
Overshoot Area
VDDQ
VSSQ
Maximum Amplitude
Undershoot Area
Time (ns)
Volts
(V)