MT47H128M8HQ-187EIT:G Micron Technology Inc, MT47H128M8HQ-187EIT:G Datasheet - Page 104
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MT47H128M8HQ-187EIT:G
Manufacturer Part Number
MT47H128M8HQ-187EIT:G
Description
Manufacturer
Micron Technology Inc
Datasheet
1.MT47H128M8HQ-187EITG.pdf
(136 pages)
Specifications of MT47H128M8HQ-187EIT:G
Lead Free Status / Rohs Status
Compliant
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Figure 54: x4, x8 Data Output Timing –
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. W 7/11 EN
DQ (first data no longer valid)
DQ (first data no longer valid)
All DQs and DQS collectively 6
DQ (last data valid)
DQ (last data valid)
Notes:
Earliest signal transition
Latest signal transition
DQS#
DQS 3
1.
2.
3. DQ transitioning after the DQS transition defines the
4. DQ0, DQ1, DQ2, DQ3 for x4 or DQ[7:0] for x8.
5.
6. The data valid window is derived for each DQS transition and is defined as
CK#
DQ 4
DQ 4
DQ 4
DQ 4
DQ 4
DQ 4
CK
t
t
transitions, and ends with the last valid transition of DQ.
T2 and at T2n are “early DQS,” at T3 are “nominal DQS,” and at T3n are “late DQS.”
t
HP is the lesser of
DQSQ is derived at each DQS clock edge, is not cumulative over time, begins with DQS
QH is derived from
T1
t HP 1
t
DQSQ,
t
CL or
t HP 1
t
HP:
t DQSQ 2
t
QH, and Data Valid Window
t QH 5
t
t
QH =
104
CH clock transitions collectively when a bank is active.
T2
window
Data
valid
T2
T2
T2
t HP 1
t
HP -
t DQSQ 2
T2n
t QHS
t
Micron Technology, Inc. reserves the right to change products or specifications without notice.
t QH 5
QHS.
window
t HP 1
T2n
Data
valid
T2n
T2n
1Gb: x4, x8, x16 DDR2 SDRAM
T3
t DQSQ 2
t QH 5
t QHS
t HP 1
t
window
DQSQ window. DQS transitions at
Data
valid
T3
T3
T3
T3n
2007 Micron Technology, Inc. All rights reserved.
t DQSQ 2
t QHS
t QH 5
t HP 1
window
T4
Data
valid
T3n
T3n
T3n
t
QH -
t QHS
READ
t
DQSQ.
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