EBE10UE8ACWB
AC Overshoot/Undershoot Specification (DDR2 SDRAM Component Specification)
Parameter
Pins
Specification
Unit
V
Command, Address,
CKE, ODT
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
0.5
0.5
V
Maximum overshoot area above VDD
DDR2-800
0.66
0.8
V-ns
V-ns
V-ns
DDR2-667
Maximum undershoot area below VSS
DDR2-800
0.66
DDR2-667
0.8
V-ns
V
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDD
Maximum undershoot area below VSS
Maximum peak amplitude allowed for overshoot
CK, /CK
0.5
0.5
V
0.23
0.23
0.5
V-ns
V-ns
V
DQ, DQS, /DQS,
UDQS, /UDQS,
LDQS, /LDQS,
Maximum peak amplitude allowed for undershoot
0.5
V
RDQS, /RDQS,
DM, UDM, LDM
Maximum overshoot area above VDDQ
Maximum undershoot area below VSSQ
0.23
0.23
V-ns
V-ns
Maximum amplitude
Overshoot area
VDD, VDDQ
Volts (V)
VSS, VSSQ
Undershoot area
Time (ns)
Overshoot/Undershoot Definition
Data Sheet E1400E10 (Ver. 1.0)
11
ELPIDA [ ELPIDA MEMORY ]
