Hynix HMT42GR7BFR4C-RDT8 User Manual
Rev. 1.0 / May. 2014
40
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
DDR3-
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)
0.67
0.5
0.4
0.33
0.28 V-ns
Maximum undershoot area below VSS (See Figure below)
0.67
0.5
0.4
0.33
0.28 V-ns
(A0-A15, BA0-BA3, CS, RAS, CAS, WE, CKE, ODT)
See figure below for each parameter definition
Maximum Amplitude
Overshoot Area
VDD
VSS
Maximum Amplitude
Undershoot Area
Time (ns)
Volts
(V)