參數(shù)資料
型號: MT47H128M8HQ-3AT
元件分類: DRAM
英文描述: 128M X 8 DDR DRAM, 0.4 ns, PBGA60
封裝: 8 X 11.50 MM, ROHS COMPLIANT, FBGA-60
文件頁數(shù): 21/129頁
文件大?。?/td> 9252K
代理商: MT47H128M8HQ-3AT
Figure 72: WRITE-to-Power-Down or Self Refresh Entry
CK
CK#
Command
DQ
DQS, DQS#
WL = 3
T0
T1
T2
Don’t Care
Transitioning Data
NOP
DO
T3
T4
T5
Valid
T6
Valid
T7
T8
tCKE (MIN)
Address
A10
NOP
WRITE
Valid
Power-down or
self refresh entry1
tWTR
NOP1
DO
CKE
Note: 1. Power-down or self refresh entry may occur after the WRITE burst completes.
Figure 73: WRITE with Auto Precharge-to-Power-Down or Self Refresh Entry
CK
CK#
Command
DQ
DQS, DQS#
WL = 3
T0
T1
T2
Don’t Care
Transitioning Data
NOP
DO
T3
T4
T5
Valid
Ta0
Valid1
NOP
Ta1
Ta2
tCKE (MIN)
Address
A10
NOP
CKE
WRITE
Valid
Power-down or
self refresh entry
WR2
DO
Indicates a break in
time scale
Notes: 1. Internal PRECHARGE occurs at Ta0 when WR has completed; power-down entry may oc-
cur 1 x tCK later at Ta1, prior to tRP being satisfied.
2. WR is programmed through MR9–MR11 and represents (tWR [MIN] ns/tCK) rounded up
to next integer tCK.
1Gb: x4, x8, x16 1.55V DDR2 SDRAM
Power-Down Mode
PDF: 09005aef82b91d01
1GbDDR2_1_55V.PDF Rev. A 5/09 EN
117
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.
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