EDE1104ACSE, EDE1108ACSE, EDE1116ACSE
Single-ended DQS
VDDQ
VIH (AC) min.
VIH (DC) min.
VREF (DC)
VIL (DC) max.
VIL (AC) max.
VSS
DQS
Differential DQS, /DQS
tDS1
tDH1
tDS1
tDH1
CK, /CK
DQS
CK
/DQS
/CK
tDS
tIS
tDH
tIH
tDS
tIS
tDH
tIH
VDD
VIH (AC) min.
VREF to AC
region
nominal
line
nominal
line
VIH (DC) min.
VREF (DC)
DC to VREF
region
tangent
line
tangent
line
DC to VREF
region
nominal
line
VIL (DC) max.
VREF to AC
region
nominal
line
VIL (AC) max.
VSS
∆TFS
∆TRH
∆TRS
∆TFH
tangent line [VREF (DC) - VIL (AC) max.]
tangent line [VIH (AC) min. - VREF (DC)]
Setup slew rate
Falling signal
Setup slew rate
Rising signal
=
=
=
=
∆
TFS
tangent line [VREF (DC) - VIL (DC) max.]
TRH
∆
TRS
tangent line [VIH (DC) min. - VREF (DC)]
TFH
Hold slew rate
Rising signal
Hold slew rate
Falling signal
∆
∆
Slew Rate Definition Tangent
Data Sheet E0975E50 (Ver.5.0)
28
ELPIDA [ ELPIDA MEMORY ]
