參數(shù)資料
型號(hào): V59C1G01408QAJ37E
廠商: PROMOS TECHNOLOGIES INC
元件分類: DRAM
英文描述: 256M X 4 DDR DRAM, 0.5 ns, PBGA68
封裝: ROHS COMPLIANT, FBGA-68
文件頁數(shù): 71/79頁
文件大小: 1029K
代理商: V59C1G01408QAJ37E
73
ProMOS TECHNOLOGIES
V59C1G01(408/808/168)QA
V59C1G01(408/808/168)QA Rev. 1.2 April 2008
AC Characteristics (AC operating conditions unless otherwise noted)
Parameter
Symbol
(DDR2-667)
-3
(DDR2-800)
-25A
(DDR2-800)
-25
(DDR2-1066)
-18
Unit
Note
Min
Max
Min
Max
Min
Max
Min
Max
Row Cycle Time
tRC
54
-
54
-
57.5
-
58.125
-
ns
Auto Refresh Row Cycle Time
tRFC
105
-
105
-
105
-
105
-
ns
11
Row Active Time
tRAS
45
70K
45
70K
45
70K
45
70K
ns
21
Row Address to Column Address Delay
tRCD
15
-
15
-
12.5
-
13.125
-
ns
20
Row Active to Row Active Delay (x4 & x8)
tRRD
7.5
-
7.5
-
7.5
-
7.5
-
ns
Row Active to Row Active Delay (x16)
tRRD
10
-
10
-
10
-
10
-
ns
Four Activate Window for (x4 & x8)
tFAW
37.5
-
35
-
35
-
35
-
ns
Four Active to Row Active Delay (x16)
tFAW
50
-
45
-
45
-
45
-
ns
Column Address to Column Address Delay
tCCD
2
-
2
-
2
-
2
-
CLK
Row Precharge Time
tRP
15
-
15
-
12.5
-
13.125
-
ns
Write Recovery Time
tWR
15
-
15
-
15
-
15
-
ns
Auto Precharge Write Recovery + Precharge
Time
tDAL
tWR +tRP
-
tWR +tRP
-
tWR +tRP
-
tWR +tRP
-
ns
12
System Clock Cycle
Time
CAS Latency = 3
tCK
5
8
5
858
58
ns
2
CAS Latency = 4
3.75
8
3.75
8
3.75
8
3.75
8
ns
2
CAS Latency = 5
3
8
3
8
2.5
8
3
8
ns
2
CAS Latency = 6
3
82.582.582.5
8
ns
2
CAS Latency = 7
3
82.582.582.5
8
ns
2
Clock High Level Width
tCH
0.48
0.52
0.48
0.52
0.48
0.52
0.48
0.52
CLK
Clock Low Level Width
tCL
0.48
0.52
0.48
0.52
0.48
0.52
0.48
0.52
CLK
Data-Out edge to Clock edge Skew
tAC
-0.45
0.45
-0.40
0.40
-0.40
0.40
-0.35
0.35
ns
DQS-Out edge to Clock edge Skew
tDQSCK
-0.40
0.40
-0.35
0.35
-0.35
0.35
-0.325
0.325
ns
DQS-Out edge to Data-Out edge Skew
tDQSQ
-
0.24
-
0.20
-
0.20
-
0.175
ns
Data-Out hold time from DQS
tQH
tHPmin
-tQHS
-
tHPmin
-tQHS
-
tHPmin
-tQHS
-
tHPmin
-tQHS
-
ns
Data hold skew factor
tQHS
-
340
-
300
-
300
-
250
ps
Clock Half Period
tHP
tCH/L
min
-
tCH/L
min
-
tCH/L
min
-
tCH/L
min
-
ns
5
Input Setup Time (fast slew rate)
tIS
200
-
175
-
175
-
125
-
ps
15,17
Input Hold Time (fast slew rate)
tIH
275
-
250
-
250
-
200
-
ps
15,17
Input Pulse Width
tIPW
0.60
-
0.60
-
0.60
-
0.60
-
CLK
Write DQS High Level Width
tDQSH
0.35
CLK
Write DQS Low Level Width
tDQSL
0.35
CLK
CLK to First Rising edge of DQS-In
tDQSS
-0.25
tCK
+0.25
tCK
-0.25
tCK
+0.25
tCK
-0.25
tCK
+0.25
tCK
-0.25
tCK
+0.25
tCK
CLK
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