参数资料
型号: MT46H128M32L2JV-54AT:A
元件分类: DRAM
英文描述: 128M X 32 DDR DRAM, 5 ns, PBGA168
封装: 12 X 12 MM, GREEN, PLASTIC, VFBGA-168
文件页数: 36/106页
文件大小: 3431K
Electrical Specifications – AC Operating Conditions
Table 12: Electrical Characteristics and Recommended AC Operating Conditions
Notes 1–9 apply to all the parameters in this table; VDD/VDDQ = 1.70–1.95V
Parameter
Symbol
-5
-54
-6
-75
Unit Notes
Min
Max
Min
Max
Min
Max
Min
Max
Access window of
DQ from CK/CK#
CL = 3
tAC
2.0
5.0
2.0
5.0
2.0
5.0
2.0
6.0
ns
CL = 2
2.0
6.5
2.0
6.5
2.0
6.5
2.0
6.5
Clock cycle time
CL = 3
tCK
5.0
5.4
6
7.5
ns
CL = 2
12
12
12
12
CK high-level width
tCH
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
tCK
CK low-level width
tCL
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
tCK
CKE minimum pulse width
(high and low)
tCKE
1
1
1
1
tCK
Auto precharge write re-
covery + precharge time
tDAL
DQ and DM input hold
time relative to DQS (fast
slew rate)
tDHf
0.48
0.54
0.6
0.8
ns
DQ and DM input hold
time relative to DQS (slow
slew rate)
tDHs
0.58
0.64
0.7
0.9
ns
DQ and DM input setup
time relative to DQS (fast
slew rate)
tDSf
0.48
0.54
0.6
0.8
ns
DQ and DM input setup
time relative to DQS (slow
slew rate)
tDSs
0.58
0.64
0.7
0.9
ns
DQ and DM input pulse
width (for each input)
tDIPW
1.8
1.9
2.1
1.8
ns
Access window of
DQS from CK/CK#
CL = 3
tDQSCK
2.0
5.0
2.0
5.0
2.0
5.0
2.0
6.0
ns
CL = 2
2.0
6.5
2.0
6.5
2.0
6.5
2.0
6.5
ns
DQS input high pulse
width
tDQSH
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
DQS input low pulse width
tDQSL
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
DQS–DQ skew, DQS to last
DQ valid, per group, per
access
tDQSQ
0.4
0.45
0.45
0.6
ns
WRITE command to first
DQS latching transition
tDQSS
0.75
1.25
0.75
1.25
0.75
1.25
0.75
1.25
tCK
DQS falling edge from CK
rising – hold time
tDSH
0.2
0.2
0.2
0.2
tCK
DQS falling edge to CK
rising – setup time
tDSS
0.2
0.2
0.2
0.2
tCK
2Gb: x16, x32 Mobile LPDDR SDRAM
Electrical Specifications – AC Operating Conditions
PDF: 09005aef83a73286
2gb_ddr_mobile_sdram_t69m.pdf - Rev. M 11/10 EN
35
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.
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