IC41C16256
IC41LV16256
AC CHARACTERISTICS(1,2,3,4,5,6)
(Recommended Operating Conditions unless otherwise noted.)
-25
-35
-50
-60
Symbol
Parameter
Min. Max. Min. Max.
Min. Max. Min. Max. Units
tRC
Random READ or WRITE Cycle Time
45
—
—
—
—
25
8
60
—
—
—
—
35
10
18
90
—
—
—
—
50
14
25
110
—
—
60
15
30
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(6, 7)
tRAC
tCAC
tAA
Access Time from RAS
(6, 8, 15)
Access Time from CAS
—
Access Time from Column-Address(6)
RAS Pulse Width
12
—
tRAS
tRP
tCAS
tCP
tCSH
tRCD
tASR
tRAH
tASC
tCAH
tAR
25 10K
35 10K
50 10K
60 10K
RAS Precharge Time
15
4
4
—
10K
—
20
6
5
—
10K
—
30
8
8
—
10K
—
40
—
CAS Pulse Width(26)
10 10K
CAS Precharge Time(9, 25)
CAS Hold Time (21)
10
60
20
0
10
0
—
—
45
—
—
—
—
—
25
10
0
—
35
11
0
—
50
19
0
—
RAS to CAS Delay Time(10, 20)
Row-Address Setup Time
Row-Address Hold Time
Column-Address Setup Time(20)
Column-Address Hold Time(20)
17
—
28
—
36
—
6
—
6
—
8
—
0
—
0
—
0
—
5
—
6
—
8
—
10
40
Column-Address Hold Time
19
—
30
—
40
—
(referenced to RAS)
tRAD
tRAL
tRPC
tRSH
tCLZ
tCRP
tOD
RAS to Column-Address Delay Time(11)
Column-Address to RAS Lead Time
RAS to CAS Precharge Time
RAS Hold Time(27)
8
12
0
20
—
—
—
—
—
12
8
—
—
—
—
—
10
18
0
20
—
—
—
—
—
12
10
—
—
—
—
—
14
25
0
25
—
—
—
—
—
12
15
—
—
—
—
—
15
30
0
15
3
5
3
—
10
10
5
30
—
—
—
—
—
12
15
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7
8
14
3
CAS to Output in Low-Z(15, 29)
CAS to RAS Precharge Time(21)
Output Disable Time(19, 28, 29)
3
3
5
5
5
2
3
3
tOE
Output Enable Time(15, 16)
0
0
0
tOEHC
tOEP
tOES
tRCS
tRRH
OE HIGH Hold Time from CAS HIGH
10
10
5
10
10
5
10
10
5
OE HIGH Pulse Width
OE LOW to CAS HIGH Setup Time
Read Command Setup Time(17, 20)
Read Command Hold Time
0
0
0
0
0
0
0
0
(referenced to RAS)(12)
tRCH
Read Command Hold Time
0
—
0
—
0
—
0
—
ns
(referenced to CAS)(12, 17, 21)
tWCH
tWCR
Write Command Hold Time(17, 27)
5
19
—
—
5
30
—
—
8
40
—
—
10
50
—
—
ns
ns
Write Command Hold Time
(referenced to RAS)(17)
tWP
Write Command Pulse Width(17)
5
10
7
5
0
19
—
—
—
—
—
—
5
10
8
8
0
30
—
—
—
—
—
—
8
—
—
—
—
—
—
10
10
15
15
0
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
tWPZ
tRWL
tCWL
tWCS
tDHR
WE Pulse Widths to Disable Outputs
Write Command to RAS Lead Time(17)
Write Command to CAS Lead Time(17, 21)
Write Command Setup Time(14, 17, 20)
Data-in Hold Time (referenced to RAS)
10
14
14
0
40
40
8
Integrated Circuit Solution Inc.
DR018-0C 04/23/2004
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
