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SGN04G72G2BK2MT-DCWRT Datasheet, PDF (9/17 Pages) List of Unclassifed Manufacturers – 4096MB DDR3 – SDRAM ECC SO-DIMM
Data Sheet
Rev.1.0 24.07.2013
DDR3 SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND RECOMMENDED
AC OPERATING CONDITIONS
(°C ≤ TCASE ≤ + 85°C; VDDQ = +1.5V ± 0.075V, VDD = +1.5V ± 0.075V)
AC CHARACTERISTICS
PARAMETER
Clock cycle time CL = 11
CL = 10
CL = 9
CL = 8
CL = 7
CL = 6
CL = 5
Internal READ command to first
data
CK high-level width
CK low-level width
Data-out high-impedance
window from CK/CK#
Data-out low-impedance window
from CK/CK#
DQ and DM input setup time
relative to DQS VREF=1V/ns
SYMBOL
tCK (11)
tCK (10)
tCK (9)
tCK (8)
tCK (7)
tCK (6)
tCK (5)
tAA
tCH (AVG)
tCL (AVG)
tHZ
tLZ
tDS1V
12800-11-11-11
MIN MAX
1.25
-
1.5 <1.875
1.5 <1.875
1.875 <2.5
1.875 <2.5
2.5
3.3
3.0
3.3
13.75
-
0.47 0.53
0.47 0.53
-
225
-450 225
160
-
DQ and DM input hold time
relative to DQS VREF=1V/ns
tDH1V
145
-
DQ and DM input pulse width
( for each input )
tDIPW
360
-
DQS, DQS# to DQ skew, per
access
tDQSQ
100
DQ-DQS hold, DQS to first DQ tQH
to go non-valid, per access
0.38
-
DQS input high pulse width
DQS input low pulse width
DQS, DQS# rising to/from CK,
CK#
tDQSH
tDQSL
tDQSCK
0.45
0.45
-225
0.55
0.55
225
DQS, DQS# rising to/from CK,
CK# when DLL disabled
DQS falling edge to CK rising
- setup time
tDQSCK
DLL_DIS
tDSS
1
10
0.18
-
DQS falling edge from CK rising tDSH
- hold time
0.18
-
DQS read preamble
DQS read postamble
DQS write preamble
DQS write postamble
Positive DQS latching edge to
associated clock edge
tRPRE
tRPST
tWPRE
tWPST
tDQSS
0.9
0.3
0.9
0.3
- 0.27
Note1
Note2
-
-
0.27
Address and control input pulse tIPW
width ( for each input )
560
-
CTRL, CMD, Addr setup to CK, tIS(Base)
CK#
45
-
CTRL, CMD, Addr setup to CK, tIS(1V)
CK#
VREF @ 1V/ns
220
-
1 The maximum preamble is bound by tLZDQS (MAX)
2 The maximum postamble is bound by tHZDQS (MAX)
10600-999
MIN MAX Unit
-
-
1.5 <1.875
1.5 <1.875
1.875 <2.5
1.875 <2.5 ns
2.5
3.3
3.0
3.3
13.5
-
0.47
0.47
0.53 tCK
0.53 tCK
-
250 ps
-500 250 ps
180
-
ps
165
-
ps
400
-
ps
0.38
0.45
0.45
-255
125
-
0.55
0.55
255
ps
tCK
(AVG)
tCK
tCK
ps
1
10 ns
0.2
-
tCK
0.2
-
tCK
0.9 Note1 tCK
0.3 Note2 tCK
0.9
-
tCK
0.3
-
tCK
- 0.25 + 0.25 tCK
620
-
ps
65
-
ps
240
-
ps
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CH – 9552 Bronschhofen
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