參數(shù)資料
型號: HYB18T512160AF
廠商: INFINEON TECHNOLOGIES AG
英文描述: 512-Mbit DDR2 SDRAM
中文描述: 512兆位DDR2 SDRAM的
文件頁數(shù): 107/117頁
文件大?。?/td> 2102K
代理商: HYB18T512160AF
Data Sheet
107
Rev. 1.3, 2005-01
09112003-SDM9-IQ3P
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
512-Mbit DDR2 SDRAM
AC Timing Measurement Conditions
8.3.3
Data input setup time (
t
DS1
) with single-ended data
strobe enabled MR[bit10]=1, is referenced from the
input signal crossing at the
V
IH(ac)
level to the single-
ended data strobe crossing
V
IH/L(dc)
at the start of its
transition for a rising signal, and from the input signal
crossing at the
V
IL(ac)
level to the single-ended data
strobe crossing
V
IH/L(dc)
at the start of its transition for a
falling signal applied to the device under test.
Data input hold time (
t
DH1
) with single-ended data
strobe enabled MR[bit10]=1, is referenced from the
Definition Data Setup (
t
DS1
) and Hold Time (
t
DH1
), Single-Ended Data Strobes
input signal crossing at the
V
IH(dc)
level to the single-
ended data strobe crossing
V
IH/L(ac)
at the end of its
transition for a rising signal and from the input signal
crossing at the
V
IL(dc)
level to the single-ended data
strobe crossing
V
IH/L(ac)
at the end of its transition for a
falling signal applied to the device under test.
The DQS signal must be monotonic between
V
IL(dc.MAX
and
V
IH(dc).MIN
.
Figure 75
Data Setup and Hold Time (Single Ended Data Strobes)
tDS
tDH
tDS
tDH
V
DDQ
V
IH(ac)
min
V
IH(dc)
min
V
REF
V
IL(dc)
max
V
IL(ac)
max
V
SS
V
DDQ
V
IH(ac)
min
V
IH(dc)
min
V
REF
V
IL(dc)
max
V
IL(ac)
max
V
SS
DQS
DQ
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