MO SEL VITELIC
V53C8125H
AC Characteristics (ContÌd)
30
35
40
45
50
#
Symbol Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes
29 tWP
Write Pulse Width
5
5
5
6
7
ns
ns
30 tWCR
Write Command Hold Time
from RAS
26
28
30
35
40
31 tRWL
Write Command to RAS
Lead Time
10
11
12
13
14
ns
32 tDS
Data in Setup Time
Data in Hold Time
0
5
5
5
0
5
0
5
0
6
0
7
ns
ns
ns
ns
ns
ns
14
14
14
14
33 tDH
34 tWOH
35 tOED
36 tRWC
37 tRRW
Write to OE Hold Time
OE to Data Delay Time
5
6
7
8
5
6
7
8
Read-Modify-Write Cycle Time 100
105
70
110
75
115
80
130
87
Read-Modify-Write Cycle
RAS Pulse Width
65
38 tCWD
39 tRWD
CAS to WE Delay
26
50
28
54
30
58
32
62
34
68
ns
ns
12
12
RAS to WE Delay in Read-
Modify-Write Cycle
40 tCRW
41 tAWD
42 tPC
CAS Pulse Width (RMW)
Col. Address to WE Delay
44
32
19
46
35
21
48
38
23
50
41
25
52
42
28
ns
ns
ns
12
Fast Page Mode Read
or Write Cycle Time
43 tCP
CAS Precharge Time
4
4
5
6
7
ns
ns
44 tCAR
Column Address to RAS
Setup Time
16
18
20
22
24
45 tCAP
46 tDHR
47 tCSR
Access Time from Column
Precharge
19
21
23
25
27
ns
ns
ns
7
Data in Hold Time Referenced
to RAS
26
10
28
10
30
10
35
10
40
10
CAS Setup Time CAS- before-
RAS Refresh
48 tRPC
49 tCHR
RAS to CAS Precharge Time
0
7
0
8
0
8
0
0
ns
ns
CAS Hold Time CAS-before-
RAS Refresh
10
12
50 tPCM
Fast Page Mode Read-Modify-
Write Cycle Time
56
3
58
3
60
3
65
70
ns
51 tT
Transition Time (Rise and Fall)
Refresh Interval (512 Cycles)
50
8
50
8
50
8
3
50
8
3
50
8
ns
15
17
52 tREF
ms
V53C8125H Rev. 1.7 August 1998
6
MOSEL [ MOSEL VITELIC, CORP ]
