IS41LV16257 ISSI [Integrated Silicon Solution, Inc], IS41LV16257 Datasheet - Page 7

• Manufacturer Part Number: IS41LV16257
• Description: 256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

IS41C16257
IS41LV16257
Integrated Silicon Solution, Inc. — 1-800-379-4774
DR004-1B
05/24/99
AC CHARACTERISTICS
Symbol Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
RAC
CAC
AA
RAS
RP
CAS
CP
CSH
RCD
ASR
RAH
ASC
CAH
AR
RAD
RAL
RPC
RSH
CLZ
CRP
OD
OE
OEHC
OEP
OES
RCS
RRH
RCH
WCH
WCR
WP
WPZ
RWL
CWL
WCS
DHR
otherwise noted.)
Random READ or WRITE Cycle Time
Access Time from
Access Time from
Access Time from Column-Address
RAS
RAS
CAS
CAS
CAS
RAS
Row-Address Setup Time
Row-Address Hold Time
Column-Address Setup Time
Column-Address Hold Time
Column-Address Hold Time
(referenced to
RAS
Column-Address to
RAS
RAS
CAS
CAS
Output Disable Time
Output Enable Time
OE
OE
OE
Read Command Setup Time
Read Command Hold Time
(referenced to
Read Command Hold Time
(referenced to
Write Command Hold Time
Write Command Hold Time
(referenced to
Write Command Pulse Width
WE
Write Command to
Write Command to
Write Command Setup Time
Data-in Hold Time (referenced to
HIGH Hold Time from
HIGH Pulse Width
LOW to
Pulse Widths to Disable Outputs
Pulse Width
Precharge Time
to
to Column-Address Delay Time
to
Hold Time
Pulse Width
Precharge Time
Hold Time
to Output in Low-Z
to
CAS
CAS
RAS
CAS
Delay Time
Precharge Time
Precharge Time
RAS
RAS
CAS
RAS
(27)
(21)
(26)
HIGH Setup Time
RAS
CAS
)
)
)
)
RAS
CAS
RAS
(12)
(12, 17, 21)
(17)
(15, 16)
(19, 28, 29)
(9, 25)
(6, 7)
(6, 8, 15)
(15, 29)
(10, 20)
Lead Time
Lead Time
Lead Time
(1,2,3,4,5,6)
CAS
(17, 27)
(20)
(14, 17, 20)
(17, 20)
(21)
(20)
(17)
HIGH
RAS
(17)
(17, 21)
(6)
(11)
(Recommended Operating Conditions unless
)
Min. Max.
60
35
20
35
11
30
12
18
10
10
30
10
30
—
—
—
—
6
5
0
6
0
6
0
8
3
5
3
5
0
0
0
5
5
8
8
0
-35
10K
10K
35
10
18
28
20
15
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Min. Max.
110
60
40
10
10
60
20
10
10
40
15
30
15
10
10
10
50
10
10
15
15
40
—
—
—
— 0
—
0
0
3
5
3
5
0
0
0
0
-60
10K
10K
60
15
30
45
30
15
15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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
ns
ns
— ns
(Continued)
ISSI
®
7