參數(shù)資料
型號: V54C3256404VDLJ8PC
廠商: PROMOS TECHNOLOGIES INC
元件分類: DRAM
英文描述: 64M X 4 SYNCHRONOUS DRAM, 6 ns, PBGA60
封裝: GREEN, MO-210, FBGA-60
文件頁數(shù): 10/56頁
文件大?。?/td> 728K
代理商: V54C3256404VDLJ8PC
18
V54C3256(16/80/40)4VD Rev. 1.7 May 2006
ProMOS TECHNOLOGIES
V54C3256(16/80/40)4VD
AC Characteristics 1,2, 3
TA = 0 to 70 °C; VSS = 0 V; VDD = 3.3 V ± 0.3 V, tT = 1 ns
#
Symbol
Parameter
Limit Values
Unit Note
-6
-7PC
-7
-8PC
Min. Max. Min. Max. Min. Max. Min. Max.
Clock and Clock Enable
1tCK
Clock Cycle Time
CAS Latency = 3
CAS Latency = 2
6
7.5
7
7.5
7
10
8
10
s
ns
2tCK
Clock Frequency
CAS Latency = 3
CAS Latency = 2
166
133
143
133
143
100
125
100
MHz
3tAC
Access Time from Clock
CAS Latency = 3
CAS Latency = 2
_
5.4
_
5.4
_
5.4
6
_
6
ns
2, 4
4tCH
Clock High Pulse Width
2.5
2.5
2.5
3
ns
5tCL
Clock Low Pulse Width
2.5
2.5
2.5
3
ns
6tT
Transition Tim
0.3
1.2
0.3
1.2
0.3
1.2
0.5
10
ns
Setup and Hold Times
7tIS
Input Setup Time
1.5
1.5
1.5
2
ns
5
8tIH
Input Hold Time
0.8
0.8
0.8
1
ns
5
9tCKS
CKE Setup Time
1.5–1.5–1.5
2
ns
5
10
tCKH
CKE Hold Time
0.8
0.8
0.8
1
ns
5
11
tRSC
Mode Register Set-up Time
12
14
14
16
ns
12
tSB
Power Down Mode Entry Time
0
6
0
7
0
7
0
8
ns
13
tDS
Data-in setup time
1.5
1.5
1.5
1.5
ns
14
tDH
Data-in hold time
0.8
0.8
0.8
0.8
ns
Common Parameters
15
tRCD
Row to Column Delay Time
15
15
15
20
ns
6
16
tRP
Row Precharge Time
15
15
15
20
ns
6
17
tRAS
Row Active Time
40
100K
42
100K
42
100K
45
100k
ns
6
18
tRC
Row Cycle Time
60
60
60
60
ns
6
19
tRRD
Activate(a) to Activate(b) Command Period
12
14
14
16
ns
6
20
tCCD
CAS(a) to CAS(b) Command Period
1
1
1
1
CLK
21
tDPL
Data-in to Precharge Command for Manual
precharge
2–2
–2–
2
CLK
Refresh Cycle
22
tREF
Refresh Period (8192 cycles)
64
64
64
64
ms
23
tSREX
Self Refresh Exit Time
1
1
1
1
CLK
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