參數(shù)資料
型號(hào): μPD45D128442
廠商: NEC Corp.
英文描述: 128 M-bit Synchronous DRAM with Double Data Rate(128 同步動(dòng)態(tài)RAM)
中文描述: 128 M位同步雙數(shù)據(jù)速率(128同步動(dòng)態(tài)RAM的內(nèi)存)
文件頁(yè)數(shù): 45/80頁(yè)
文件大?。?/td> 637K
代理商: ΜPD45D128442
45
μ
PD45D128442, 45D128842, 45D128164
Preliminary Data Sheet
Relationship between Frequency and Latency
Speed version
-C10
-C12
Clock cycle time [ns]
8
10
10
12
Frequency [MHz]
125
100
100
83
/CAS latency
2.5
2
2.5
2
[t
RCD
]
3
2
3
2
/RAS latency
(/CAS latency + [t
RCD
])
5.5
4
5.5
4
[t
RC
]
10
7
9
7
[t
RAS
]
7
5
6
5
[t
RRD
]
2
2
2
2
[t
RP
]
3
2
3
2
[t
DPL
]
2
1
2
1
[t
DAL
]
4
3
4
3
[t
RSC
]
2
2
2
2
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