參數(shù)資料
型號(hào): V91F564U24QBFW-F5
廠商: PROMOS TECHNOLOGIES INC
元件分類(lèi): DRAM
英文描述: 64M X 72 DDR DRAM MODULE, 0.45 ns, DMA240
封裝: ROHS COMPLIANT, FBDIMM-240
文件頁(yè)數(shù): 11/22頁(yè)
文件大小: 196K
代理商: V91F564U24QBFW-F5
V91F564U24QB Rev 1.0 July 2006
19
V91F564U24QB
ProMOS TECHNOLOGIES
DQ & DM Input Pulse Width
tDIPW
0.35
-
0.35
-
CLK
Read DQS Preamble Time
tRPRE
0.9
1.1
0.9
1.1
CLK
Read DQS Postamble Time
tRPST
0.4
0.6
0.4
0.6
CLK
Write DQS Preamble Setup Time
tWPRES
0
-
0
-
CLK
Write DQS Preamble Hold Time
tWPREH
0.25
-
0.25
-
CLK
Write DQS Postamble Time
tWPST
0.4
0.6
0.4
0.6
CLK
Internal read to precharge command delay
tRTP
7.5
-
7.5
-
ns
Internal write to read command delay
tWTR
7.5
-
7.5
-
ns
Data out high impedance time from CLK/CLK
tHZ
tAC(min)
tAC(max)
tAC(min)
tAC(max)
ns
Data out low impedance time from CLK/CLK
tLZ
tAC(min)
tAC(max)
tAC(min)
tAC(max)
ns
Mode Register Set Delay
tMRD
2-
2
-
CLK
Exit Self Refresh to Non-Read Command
tXSNR
tRFC+10
-
tRFC+10
-
ns
Exit Self Refresh to Read Command
tXSRD
200
-
200
-
CLK
Exit Precharge Power Down to any non-Read Command
tXP
2
-
2
-
CLK
Exit Active Power Down to Read Command
tXARD
2-
2
-
CLK
Exit Active Power Down to Read Command
(Slow exit, Lower Power)
tXARDS
6-AL
-
6-AL
-
CLK
ODT drive mode output delay
tOIT
0120
12
ns
Minimum time clocks remains ON after CKE asynchro-
nously drops LOW
tDelay
tIS+tCK
+tIH
tIS+tCK
+tIH
ns
CKE minimum high and low pulse width
tCKE
3-
3
-
CLK
Average Periodic Refresh Interval
0C < T < 85C
tREFI
-
7.8
-
7.8
us
Parameter
Symbol
(DDR2-533)
-E4
(DDR2-667)
-F5
Unit
Min
Max
Min
Max
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