EBE21EE8ACFA Datasheet, PDF (11/30 Pages) Elpida Memory – 2GB Unbuffered DDR2 SDRAM DIMM

EBE21EE8ACFA
AC Overshoot/Undershoot Specification (DDR2 SDRAM Component Specification)
Parameter
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDD
DDR2-800
DDR2-667
Maximum undershoot area below VSS
DDR2-800
DDR2-667
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
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDDQ
Maximum undershoot area below VSSQ
Pins
Command, Address,
CKE, ODT
CK, /CK
DQ, DQS, /DQS,
UDQS, /UDQS,
LDQS, /LDQS,
RDQS, /RDQS,
DM, UDM, LDM
Specification
0.5
0.5
0.66
0.8
0.66
0.8
0.5
0.5
0.23
0.23
0.5
0.5
0.23
0.23
Unit
V
V
V-ns
V-ns
V-ns
V-ns
V
V
V-ns
V-ns
V
V
V-ns
V-ns
Maximum amplitude
Overshoot area
Volts (V) ^{VDD, VDDQ}
VSS, VSSQ
Undershoot area
Time (ns)
Overshoot/Undershoot Definition
Data Sheet E1060E20 (Ver. 2.0)
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