参数资料
型号: V58C2256324SAH-40
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 8M X 32 DDR DRAM, 0.6 ns, PBGA144
封装: LEAD FREE, BGA-144
文件页数: 28/37页
文件大小: 557K
代理商: V58C2256324SAH-40
34
V58C2256324SA Rev. 1.0 November 2003
ProMOS TECHNOLOGIES
V58C2256324SA
DQS-in hold time
tWPREH
0.35
-
0.35
-
0.30
-
0.30
-
tCK
DQS write postamble
tWPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
DQS-In high level width
tDQSH
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
DQS-In low level width
tDQSL
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
Address and Control input setup time
tIS
0.75
-
0.75
-
0.75
-
1.0
-
ns
Address and Control input hold time
tIH
0.75
-
0.75
-
0.75
-
0.9
-
ns
DQ setup time to DQS
tQDQSS
0.35
-
0.35
-
0.4
-
0.4
-
ns
DQ hold time to DQS
tQDQSH
0.35
-
0.35
-
0.4
-
0.4
-
ns
DM setup time to DQS
tDMDQSS
0.35
-
0.35
-
0.4
-
0.4
-
ns
DM hold time to DQS
tDMDQSH
0.35
-
0.35
-
0.4
-
0.4
-
ns
Clock half period
tHP
tCLmin or
tCHmin
-
tCLmin or
tCHmin
-
tCLmin or
tCHmin
-
tCLmin or
tCHmin
-
ns
Output DQS valid window
tQH
tHP-
0.35ns
-
tHP-
0.35ns
-
tHP-
0.40ns
-
tHP-
0.40ns
-
ns
Row cycle time
tRC
42
42.9
48.1
60
ns
Refresh row cycle time
tRFC
48.5
49.5
55.5
68
ns
Refresh period(4096 cycles)
tREF
-32
-
32
-32
-
32
ms
Row active time
tRAS
25.7
15.7K
29.7
15.7K
33.3
15.7K
40
15.7K
ns
RAS to CAS delay for Read
tRCDRD
13.2
-
13.2
-
14.4
-
16
-
ns
RAS to CAS delay for Write
tRCDWR
6.6-
7.2-
8
-
ns
Row precharge time
tRP
13.2
14.4
16
ns
Row active to Row active delay
tRRD
88
8
ns
Last data in to Row precharge
tWR
22
2
tCK
Internal Write to Read command delay
tWTR
11
1
tCK
Last data in to Read command delay
tCDLR
22
2
tCK
Col. address to Col. address delay
tCCD
11
1
tCK
Mode register set cycle time
tMRD
22
2
tCK
Power down exit time
tPEDX
2tCK+tIS
ns
Self refresh exit time
tSREX
200
tCK
Auto precharge write recovery
tDAL = tWR + tRP
tDAL
88
8
tCK
Parameter
Symbol
-28
-33
-36
-40
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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