V54C316162V
AC Characteristics (1,2,3)
T = 0 to 70°C; V = 0 V; V = 3.3 V ± 0.3 V, t = 1 ns
A
SS
CC
T
Limit Values
-55
-5
-6
-7
#
Symbol Parameter
Min.
Max.
Min. Max.
Min.
Max.
Min.
Max.
Unit
Clock and Clock Enable
1
2
3
tCK
tCK
tAC
Clock Cycle Time
CAS Latency = 3
CAS Latency = 2
5
–
–
5.5
10
–
–
6
–
–
7
–
–
ns
ns
10
10
10
Clock Frequency
CAS Latency = 3
CAS Latency = 2
–
–
200
100
–
–
183
100
–
–
166
100
–
–
143
100
MHz
MHz
Access Time from Clock
CAS Latency = 3
–
–
5
7
–
–
5.3
7
–
–
5.5
7
–
–
5.5
7
ns
ns
2
3
CAS Latency = 2
4
5
6
tCH
tCL
tT
Clock High Pulse Width
Clock Low Pulse Width
Transition time
2.5
2.5
1
–
–
2.5
2.5
1
–
–
2.5
2.5
1
–
–
2.5
2.5
1
–
–
ns
ns
ns
10
10
10
10
Setup and Hold Times
7
8
9
tCMDS
tAS
Command Setup Time
Address Setup Time
Data In Setup Time
CKE Setup Time
2
2
2
2
1
1
1
1
–
–
–
–
–
–
–
–
2
2
2
2
1
1
1
1
–
–
–
–
–
–
–
–
2
2
2
2
1
1
1
1
–
–
–
–
–
–
–
–
2
2
2
2
1
1
1
1
–
–
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
ns
ns
4
4
4
4
4
4
4
4
tDS
10 tCKS
11 tCMDH
12 tAH
Command Hold Time
Address Hold Time
Data In Hold Time
CKE Hold Time
13 tDH
14 tCKH
Common Parameters
15 tRCD
16 tRAS
17 tRC
18 tRP
19 tRRD
Row to Column Delay Time
15
40
60
15
10
–
16.5
45
–
18
48
66
18
12
–
18
48
70
21
14
–
ns
ns
ns
ns
ns
5
5
5
5
5
Row Active Time
Row Cycle Time
100K
100K
100K
100K
–
–
–
63
–
–
–
–
–
–
–
–
–
Row Precharge Time
17
Activate(a) to Activate(b) Com-
11
mand
period
20 tCCD
CAS(a) to CAS(b) Command pe-
riod
1
–
1
–
1
–
1
–
CLK
21 tRCS
22 tSB
Mode Register Set-up time
10
0
–
11
0
–
12
0
–
14
0
–
ns
ns
Power Down Mode Entry Time
5
5.5
6
7
Refresh Cycle
23 tREF
Refresh Period (4096 cycles)
–
64
–
64
–
64
–
64
ms
V54C316162V Rev.2.9 September 2001
10