IC41C16257/IC41C16257S
IC41LV16257/IC41LV16257S
AC CHARACTERISTICS
(1,2,3,4,5,6)
(Recommended Operating Conditions unless otherwise noted.)
-35
Min. Max.
60
—
—
—
35
20
6
5
35
11
0
6
0
6
30
12
18
0
8
3
5
3
—
5
0
0
0
5
30
5
8
8
0
30
—
35
10
18
10K
—
10K
—
—
28
—
—
—
—
—
20
—
—
—
—
—
15
10
—
—
—
—
—
—
—
—
—
—
—
-50
Min. Max.
90
—
—
—
50
30
8
8
50
19
0
8
0
8
40
14
25
0
14
3
5
3
—
5
0
0
0
8
40
8
14
14
0
40
—
50
14
25
10K
—
10K
—
—
36
—
—
—
—
—
25
—
—
—
—
—
15
15
—
—
—
—
—
—
—
—
—
—
—
-60
Min. Max.
110
—
—
—
60
40
10
10
60
20
0
10
0
10
40
15
30
0
15
3
5
3
—
5
0
0
0
10
50
10
15
15
0
45
—
60
15
30
10K
—
10K
—
—
45
—
—
—
—
—
30
—
—
—
—
—
15
15
—
—
—
—
—
—
—
—
—
—
—
Symbol
t
RC
t
RAC
t
CAC
t
AA
t
RAS
t
RP
t
CAS
t
CP
t
CSH
t
RCD
t
ASR
t
RAH
t
ASC
t
CAH
t
AR
t
RAD
t
RAL
t
RPC
t
RSH
t
CLZ
t
CRP
t
OD
t
OE
t
OES
t
RCS
t
RRH
t
RCH
t
WCH
t
WCR
t
WP
t
RWL
t
CWL
t
WCS
t
DHR
Parameter
Random READ or WRITE Cycle Time
Access Time from
RAS
(6, 7)
Access Time from
CAS
(6, 8, 15)
Access Time from Column-Address
(6)
RAS
Pulse Width
RAS
Precharge Time
CAS
Pulse Width
(26)
CAS
Precharge Time
(9, 25)
CAS
Hold Time
(21)
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)
Column-Address Hold Time
(referenced to
RAS)
RAS
to Column-Address Delay Time
(11)
Column-Address to
RAS
Lead Time
RAS
to
CAS
Precharge Time
RAS
Hold Time
(27)
CAS
to Output in Low-Z
(15, 29)
CAS
to
RAS
Precharge Time
(21)
Output Disable Time
(19, 28, 29)
Output Enable Time
(15, 16)
OE
LOW to
CAS
HIGH Setup Time
Read Command Setup Time
(17, 20)
Read Command Hold Time
(referenced to
RAS)
(12)
Read Command Hold Time
(referenced to
CAS)
(12, 17, 21)
Write Command Hold Time
(17, 27)
Write Command Hold Time
(referenced to
RAS)
(17)
Write Command Pulse Width
(17)
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)
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Continued)
8
Integrated Circuit Solution Inc.
DR021-0A 08/11/2001
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
