MOSEL VITELIC
V53C818H
AC Characteristics
T = 0°C to 70°C, V = +5V ± 10%, V = 0V unless otherwise noted
A
CC
SS
AC Test conditions, input pulse levels 0 to 3V
30
35
40
45
50
#
Symbol Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes
1
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RAS Pulse Width
30
65
25
30
5
75K
35
70
25
35
6
75K
40
75
25
40
7
75K
45
80
25
45
8
75K
50
90
30
50
9
75K
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
RAS
2
Read or Write Cycle Time
RAS Precharge Time
RC
3
RP
4
CAS Hold Time
CSH
CAS
RCD
RCS
ASR
RAH
ASC
CAH
RSH (R)
CRP
RCH
5
CAS Pulse Width
6
RAS to CAS Delay
15
0
20
16
0
24
17
0
28
18
0
32
19
0
36
7
Read Command Setup Time
Row Address Setup Time
Row Address Hold Time
Column Address Setup Time
Column Address Hold Time
RAS Hold Time (Read Cycle)
CAS to RAS Precharge Time
4
8
0
0
0
0
0
9
5
6
7
8
9
10
11
12
13
14
0
0
0
0
0
5
5
5
6
7
10
5
10
5
10
5
10
5
10
5
Read Command Hold Time
Referenced to CAS
0
0
0
0
0
5
5
15
16
t
t
Read Command Hold Time
Referenced to RAS
0
6
0
7
0
8
0
9
0
ns
ns
ns
RRH
ROH
RAS Hold Time Referenced
to OE
10
17
18
19
20
t
t
t
t
Access Time from OE
Access Time from CAS
Access Time from RAS
10
10
30
16
11
11
35
18
12
12
40
20
13
13
45
22
14
14
50
24
12
OAC
CAC
RAC
CAA
ns 6, 7, 14
ns 6, 8, 9
ns 6, 7, 10
Access Time from Column
Address
21
22
23
t
t
t
OE or CAS to Low-Z Output
OE or CAS to High-Z Output
0
0
0
0
0
0
0
0
0
0
ns
ns
ns
16
16
LZ
5
6
6
7
8
HZ
AR
Column Address Hold Time
from RAS
26
28
30
35
40
24
25
26
t
t
t
RAS to Column Address
Delay Time
10
10
10
14
11
10
11
17
12
10
12
20
13
10
13
23
14
10
14
26
ns
ns
ns
11
RAD
RAS or CAS Hold Time in
Write Cycle
RSH (W)
CWL
Write Command to CAS
Lead Time
27
28
t
t
Write Command Setup Time
Write Command Hold Time
0
5
0
5
0
5
0
6
0
7
ns
ns
12, 13
WCS
WCH
V53C818H Rev. 1.2 May 1997
5
MOSEL [ MOSEL VITELIC, CORP ]
