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參數資料
| 型號： | MH16V7245BWJ-5 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | HYPER PAGE MODE 1207959552 - BIT ( 16777216 - WORD BY 72 - BIT ) DYNAMIC RAM |
| 中文描述： | 超頁模式1207959552 -位（16777216 - Word的72 -位）動態隨機存儲器 |
| 文件頁數： | 7/22頁 |
| 文件大小： | 129K |
| 代理商： | MH16V7245BWJ-5 |
MITSUBISHI LSIs
MH16V7245BWJ -5, -6
Preliminary Spec.
Specifications subject to
change without notice.
MITSUBISHI
ELECTRIC
( / 22 )
7
28/Jul/`98
HYPER PAGE MODE 1207959552 - BIT ( 16777216 - WORD BY 72 - BIT ) DYNAMIC RAM
MIT-DS-0241-0.0
Read and Refresh Cycles
Limits
Parameter
Symbol
Unit
-6
(Note 22)
(Note 22)
Write Cycle (Early Write and Delayed Write)
10000
10000
0
0
0
104
60
10
48
15
30
18
15
Min
Max
Limits
Parameter
Symbol
Unit
(Note 24)
10000
10000
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10
10
10
0
104
60
10
40
15
10
0
10
tWC
tRAS
tCAS
tCSH
tRSH
tWCS
tWCH
tCWL
tRWL
tWP
tDS
tDH
Write cycle time
/RAS low pulse width
/CAS low pulse width
/CAS hold time after /RAS low
/RAS hold time after /CAS low
Write setup time before /CAS low
Write hold time after /CAS low
/CAS hold time after /W low
/RAS hold time after /W low
Write pulse width
Data setup time before /CAS low or /W low
Data hold time after /CAS low or /W low
-6
Min
Max
Note 22: Either tRCH or tRRH must be satisfied for a read cycle.
tRC
tRAS
tCAS
tCSH
tRSH
tRCS
tRCH
tRRH
tRAL
tCAL
tORH
tOCH
Read cycle time
/RAS low pulse width
/CAS low pulse width
/CAS hold time after /RAS low
/RAS hold time after /CAS low
Read Setup time after /CAS high
Read hold time after /CAS low
Read hold time after /RAS low
Column address to /RAS hold time
Column address to /CAS hold time
/RAS hold time after /OE low
/CAS hold time after /OE low
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Read-Write and Read-Modify-Write Cycles
Limits
Parameter
Symbol
Unit
Min
133
89
Max
-6
(Note23)
(Note24)
(Note24)
(Note24)
Read write/read modify write cycle time
/RAS low pulse width
/CAS low pulse width
/CAS hold time after /RAS low
/RAS hold time after /CAS low
Read setup time before /CAS low
Delay time, /CAS low to /W low
Delay time, /RAS low to /W low
Delay time, address to /W low
/OE hold time after /W low
tRWC
tRAS
tCAS
tCSH
tRSH
tRCS
tCWD
tRWD
tAWD
tOEH
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10000
10000
44
0
32
77
47
15
44
82
Note 23: tRWC is specified as tRWC(min)=tRAC(max)+tODD(min)+tRWL(min)+tRP(min)+4tT.
24:tWCS, tCWD,tRWD ,tAWD and,tCPWD are specified as reference points only. If tWCS
≥
tWCS(min) the cycle is an early write cycle and the DQ pins will remain
high impedance throughout the entire cycle. If tCWD
≥
tCWD(min), tRWD
≥
tRWD (min), tAWD
≥
tAWD(min) and tCPWD
≥
tCPWD(min) (for Hyper page mode cycle only),
the cycle is a read-modify-write cycle and the DQ will contain the data read from the selected address. If neither of the above condition (delayed write) of the DQ (at access
time and until /CAS or /OE goes back to VIH) is indeterminate.
15
-5
10000
10000
0
0
0
84
50
8
35
13
25
13
13
13
Min
Max
10000
10000
8
8
8
8
0
8
0
84
50
8
35
13
-5
Min
Max
Min
109
75
Max
-5
10000
10000
38
0
28
65
40
13
38
70
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