Hynix HMT325R7BFR8C-H9T7 User Manual
Rev. 1.5 / Mar. 2012
43
Overshoot and Undershoot Specifications
Address and Control Overshoot and Undershoot Specifications
Address and Control Overshoot and Undershoot Definition
AC Overshoot/Undershoot Specification for Address and Control Pins
Parameter
DDR3-
800
DDR3-
1066
DDR3-
1333
DDR3-
1600
Units
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)
0.67
0.5
0.4
0.33
V-ns
Maximum undershoot area below VSS (See figure below)
0.67
0.5
0.4
0.33
V-ns
(A0-A15, BA0-BA3, CS, RAS, CAS, WE, CKE, ODT)
See figure below for each parameter definition
M axim um Am plitude
Overshoot Area
VDD
VSS
M axim um Am plitude
Undershoot Area
Tim e (ns)
Address and Control Overshoot and Undershoot Definition
Volts
(V)