MOSEL VITELIC
AC Characteristics
(Cont’d)
35
#
33
34
35
36
37
V53C16258L
40
45
50
Symbol
t
DH
t
WOH
t
OED
t
RWC
t
RRW
t
CWD
t
RWD
t
CRW
t
AWD
t
PC
t
CP
t
CAR
t
CAP
t
DHR
t
CSR
t
RPC
t
CHR
t
PCM
t
COH
t
OES
t
OEH
t
OEP
t
T
Parameter
Data in Hold Time
Write to OE Hold Time
OE to Data Delay Time
Read-Modify-Write Cycle Time
Read-Modify-Write Cycle RAS Pulse
Width
CAS to WE Delay
RAS to WE Delay in Read-
Modify-Write Cycle
CAS Pulse Width (RMW)
Col. Address to WE Delay
EDO Page Mode Read or Write Cycle
Time
CAS Precharge Time
Column Address to RAS Setup Time
Access Time from Column Precharge
Data in Hold Time Referenced to RAS
CAS Setup Time CAS-before-RAS
Refresh
RAS to CAS Precharge Time
CAS Hold Time CAS-before-RAS Refresh
EDO Page Mode Read-Modify-Write
Cycle Time
Output Hold After CAS Low
OE Low to CAS High Setup Time
OE Hold Time from WE during
Read-Modify Write Cycle
OE High Pulse Width
Transition Time (Rise and Fall)
Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes
5
5
5
90
59
5
6
6
110
75
6
7
7
115
80
7
8
8
130
87
ns
ns
ns
ns
ns
14
14
14
38
39
23
46
30
58
32
62
34
68
ns
ns
12
12
40
41
42
34
29
14
48
38
15
50
41
17
52
42
19
ns
ns
ns
12
43
44
45
46
47
4
18
20
25
8
5
20
23
30
10
6
22
25
35
10
7
24
27
40
10
ns
ns
ns
ns
ns
7
48
49
50
0
8
43
0
10
60
0
10
65
0
10
70
ns
ns
ns
51
52
53
3
3
5
5
5
10
5
5
10
5
5
10
ns
ns
ns
54
55
8
1.5
50
10
1.5
50
10
1.5
50
10
1.5
50
ns
ns
15
Optional Self Refresh
56
57
58
59
60
t
REF
t
RASS
t
RPS
t
CHS
t
CHD
Refresh Interval (512 Cycles)
RAS Pulse Width During Self Refresh
RAS Precharge Time During Self Refresh
CAS Hold Time Width During Self Refresh
CAS Low Time During Self Refresh
100
100
100
100
8
100
100
100
100
8
100
100
100
100
8
100
100
100
100
8
ms
µs
µs
µs
µs
17
18
18
18
18
V53C16258L Rev. 1.1 June 1999
6
MOSEL [ MOSEL VITELIC, CORP ]
