參數(shù)資料
型號: MT47H128M8HQ-187ELAT:E
元件分類: DRAM
英文描述: 128M X 8 DDR DRAM, 0.35 ns, PBGA60
封裝: 8 X 11.50 MM, ROHS COMPLIANT, FBGA-60
文件頁數(shù): 5/133頁
文件大?。?/td> 9170K
Figure 55: x16 Data Output Timing – tDQSQ, tQH, and Data Valid Window
DQ (last data valid)4
DQ4
LDSQ#
LDQS3
DQ (last data valid)4
DQ (first data no longer valid)4
DQ0–DQ7 and LDQS collectively6
T2
T2n
T3
T3n
CK
CK#
T1
T2
T3
T4
T2n
T3n
tQH5
tDQSQ2
Data valid
window
Data valid
window
DQ (last data valid)7
DQ7
UDQS#
UDQS3
DQ (last data valid)7
DQ (first data no longer valid)7
DQ8–DQ15 and UDQS collectively6
T2
T2n
T3
T3n
tQH5
tDQSQ2
tHP1
tQH5
Data valid
window
Data valid
window
Data valid
window
Data valid
window
Data valid
window
Upper
Byte
Lower
Byte
Data valid
window
tQHS
Notes: 1. tHP is the lesser of tCL or tCH clock transitions collectively when a bank is active.
2. tDQSQ is derived at each DQS clock edge, is not cumulative over time, begins with DQS
transitions, and ends with the last valid transition of DQ.
3. DQ transitioning after the DQS transitions define the tDQSQ window. LDQS defines the
lower byte, and UDQS defines the upper byte.
4. DQ0, DQ1, DQ2, DQ3, DQ4, DQ5, DQ6, or DQ7.
1Gb: x4, x8, x16 DDR2 SDRAM
READ
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. S 10/09 EN
102
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2004 Micron Technology, Inc. All rights reserved.
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