V53C818HT45 查看數據表（PDF） - Mosel Vitelic Corporation
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V53C818HT45 Datasheet PDF : 18 Pages
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MOSEL VITELIC
V53C818H
AC Characteristics (Cont’d)
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
30 tWCR Write Command Hold Time
26
28
30
35
40
ns
from RAS
31 tRWL
Write Command to RAS Lead 10
11
12
13
14
ns
Time
32 tDS
Data in Setup Time
0
0
0
0
0
33 tDH
Data in Hold Time
5
5
5
6
7
34 tWOH Write to OE Hold Time
5
5
6
7
8
35 tOED
OE to Data Delay Time
5
5
6
7
8
36 tRWC Read-Modify-Write Cycle Time 100
105
110
115
130
37 tRRW Read-Modify-Write Cycle RAS 65
70
75
80
87
Pulse Width
ns 14
ns 14
ns 14
ns 14
ns
ns
38 tCWD
CAS to WE Delay
26
28
30
32
34
ns 12
39 tRWD RAS to WE Delay in Read-
50
54
58
62
68
ns 12
Modify-Write Cycle
40 tCRW
CAS Pulse Width (RMW)
44
46
48
50
52
ns
41 tAWD
Col. Address to WE Delay
32
35
38
41
42
ns 12
42 tPC
EDO Fast Page Mode Read or 12
14
15
17
19
ns
Write Cycle Time
43 tCP
CAS Precharge Time
3
4
5
6
7
ns
44 tCAR
Column Address to RAS Setup 16
18
20
22
24
ns
Time
45 tCAP
Access Time from Column
Precharge
19
21
23
25
27 ns
7
46 tDHR
Data in Hold Time Referenced 26
28
30
35
40
ns
to RAS
47 tCSR
CAS Setup Time CAS-before- 10
10
10
10
10
ns
RAS Refresh
48 tRPC
RAS to CAS Precharge Time 0
0
0
0
0
ns
49 tCHR
CAS Hold Time CAS-before-
7
8
8
10
12
ns
RAS Refresh
50 tPCM
EDO Page Mode
56
58
60
65
70
ns
Read-Modify-Write Cycle Time
51 tCOH
Output Hold After CAS Low
5
5
5
5
5
ns
52 tOES
OE Low to CAS High Setup
5
5
5
5
5
ns
Time
53 tOEH
OE Hold Time from WE during 10
10
10
10
10
ns
Read-Modify Write Cycle
V53C818H Rev. 1.2 May 1997
6
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