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
30
t
t
Write Pulse Width
5
5
5
6
7
ns
ns
WP
Write Command Hold Time
from RAS
26
28
30
35
40
WCR
31
t
Write Command to RAS Lead
Time
10
11
12
13
14
ns
RWL
32
33
34
35
36
37
t
t
t
t
t
t
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
DS
DH
Write to OE Hold Time
OE to Data Delay Time
5
6
7
8
WOH
OED
RWC
RRW
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
39
t
t
CAS to WE Delay
26
50
28
54
30
58
32
62
34
68
ns
ns
12
12
CWD
RAS to WE Delay in Read-
Modify-Write Cycle
RWD
40
41
42
t
t
t
CAS Pulse Width (RMW)
Col. Address to WE Delay
44
32
46
35
14
48
38
15
50
41
17
52
42
19
ns
ns
ns
CRW
AWD
PC
12
EDO Fast Page Mode Read or 12
Write Cycle Time
43
44
t
t
CAS Precharge Time
3
4
5
6
7
ns
ns
CP
Column Address to RAS Setup
Time
16
18
20
22
24
CAR
45
46
47
t
t
t
Access Time from Column
Precharge
19
21
23
25
27
ns
ns
ns
7
CAP
DHR
CSR
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
49
t
t
RAS to CAS Precharge Time
0
7
0
8
0
8
0
0
ns
ns
RPC
CAS Hold Time CAS-before-
RAS Refresh
10
12
CHR
50
t
EDO Page Mode
56
58
60
65
70
ns
PCM
Read-Modify-Write Cycle Time
51
52
t
t
Output Hold After CAS Low
5
5
5
5
5
5
5
5
5
5
ns
ns
COH
OE Low to CAS High Setup
Time
OES
53
t
OE Hold Time from WE during 10
Read-Modify Write Cycle
10
10
10
10
ns
OEH
V53C818H Rev. 1.2 May 1997
6
MOSEL [ MOSEL VITELIC, CORP ]
