V53C8258H
MOSEL VITELIC
AC Characteristics (Cont'd)
JEDEC
35
40
45
50
#
Symbol Symbol Parameter
Min. Max. Min. Max. Min. Max. Min. Max. Unit
Notes
27 tWL1CL2
28 tCL1WH1
29 tWL1WH1 tWP
30 tRL1WH1 tWCR
tWCS
Write Command Setup Time
Write Command Hold Time
Write Pulse Width
0
5
0
5
0
6
0
7
ns
ns
ns
ns
12, 13
tWCH
5
5
6
7
Write Command Hold Time
28
30
35
40
from RAS
31 tWL1RH1
tRWL
Write Command to RAS
12
12
13
14
ns
Lead Time
32 tDVWL2
33 tWL1DX
34 tWL1GL2
35 tGH2DX
tDS
Data in Setup Time
Data in Hold Time
0
4
0
5
0
6
0
7
ns
ns
ns
ns
ns
14
14
14
14
tDH
tWOH
tOED
tRWC
Write to OE Hold Time
OE to Data Delay Time
5
6
7
8
5
6
7
8
36 tRL2RL2
(RMW)
Read-Modify-Write
Cycle Time
105
110
115
130
37 tRL1RH1
(RMW)
tRRW
Read-Modify-Write Cycle
70
75
80
87
ns
RAS Pulse Width
38 tCL1WL2
39 tRL1WL2
tCWD
tRWD
CAS to WE Delay
28
54
30
58
32
62
34
68
ns
ns
12
12
RAS to WE Delay in
Read-Modify-Write Cycle
40 tCL1CH1
41 tAVWL2
42 tCL2CL2
tCRW
tAWD
tPC
CAS Pulse Width (RMW)
Col. Address to WE Delay
46
35
14
48
38
15
50
41
17
52
42
19
ns
ns
ns
12
EDO Page Mode
Read or Write Cycle Time
43 tCH2CL2
44 tAVRH1
tCP
CAS Precharge Time
4
5
6
7
ns
ns
tCAR
Column Address to RAS
18
20
22
24
Setup Time
45 tCH2QV
46 tRL1DX
47 tCL1RL2
tCAP
tDHR
tCSR
Access Time from
Column Precharge
20
22
24
27
ns
ns
ns
7
Data in Hold Time
28
10
30
10
35
10
40
10
Referenced to RAS
CAS Setup Time
CAS-before-RAS Refresh
48 tRH2CL2
49 tRL1CH1
tRPC
tCHR
RAS to CAS Precharge Time
0
8
0
8
0
0
ns
ns
CAS Hold Time
10
12
CAS-before-RAS Refresh
50 tCL2CL2
(RMW)
tPCM
EDO Page Mode Read-
Modify-Write Cycle Time
58
60
65
70
ns
V53C8258H Rev. 1.4 February 1997
6
MOSEL [ MOSEL VITELIC, CORP ]
