IC41C16256
IC41LV16256
AC CHARACTERISTICS
(Continued)
(1,2,3,4,5,6)
(Recommended Operating Conditions unless otherwise noted.)
Symbol
t
ACH
t
OEH
t
DS
t
DH
t
RWC
t
RWD
t
CWD
t
AWD
t
PC
t
RASP
t
CPA
t
PRWC
t
COH
t
OFF
t
WHZ
t
CLCH
t
CSR
t
CHR
t
ORD
t
REF
t
T
Parameter
Column-Address Setup Time to
CAS
Precharge during WRITE Cycle
OE
Hold Time from
WE
during
READ-MODIFY-WRITE cycle
(18)
Data-In Setup Time
(15, 22)
Data-In Hold Time
(15, 22)
READ-MODIFY-WRITE Cycle Time
RAS
to
WE
Delay Time during
READ-MODIFY-WRITE Cycle
(14)
CAS
to
WE
Delay Time
(14, 20)
Column-Address to
WE
Delay Time
(14)
EDO Page Mode READ or WRITE
Cycle Time
(24)
RAS
Pulse Width in EDO Page Mode
Access Time from
CAS
Precharge
(15)
EDO Page Mode READ-WRITE
Cycle Time
(24)
Data Output Hold after
CAS
LOW
Output Buffer Turn-Off Delay from
CAS
or
RAS
(13,15,19, 29)
Output Disable Delay from
WE
Last
CAS
going LOW to First
CAS
returning HIGH
(23)
CAS
Setup Time (CBR REFRESH)
(30, 20)
CAS
Hold Time (CBR REFRESH)
(30, 21)
OE
Setup Time prior to
RAS
during
HIDDEN REFRESH Cycle
Refresh Period (512 Cycles)
Transition Time (Rise or Fall)
(2, 3)
-25
Min. Max.
15
5
0
5
65
35
17
21
10
25
—
32
5
3
3
10
5
7
0
—
1
—
—
—
—
—
—
—
—
—
100K
14
—
—
15
15
—
—
—
—
8
50
-35
Min. Max.
15
8
0
6
80
45
25
30
12
35
—
40
5
3
3
10
8
8
0
—
1
—
—
—
—
—
—
—
—
—
100K
21
—
—
15
15
—
—
—
—
8
50
-50
Min. Max.
15
10
0
8
125
70
34
42
20
50
—
47
5
3
3
10
10
10
0
8
1
—
—
—
—
—
—
—
—
—
100K
27
—
—
15
15
—
—
—
—
—
50
-60
Min. Max. Units
15
15
0
10
140
80
36
49
25
50
—
56
5
3
3
10
10
10
0
8
1
—
—
—
—
—
—
—
—
—
100K
34
—
—
15
15
—
—
—
—
—
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
AC TEST CONDITIONS
Output load:
Two TTL Loads and 50 pF (Vcc = 5.0V ±10%)
One TTL Load and 50 pF (Vcc = 3.3V ±10%)
Input timing reference levels: V
IH
= 2.4V, V
IL
= 0.8V (Vcc = 5.0V ±10%);
V
IH
= 2.0V, V
IL
= 0.8V (Vcc = 3.3V ±10%)
Output timing reference levels: V
OH
= 2.0V, V
OL
= 0.8V (Vcc = 5V ±10%, 3.3V ±10%)
Integrated Circuit Solution Inc.
DR018-0C 04/23/2004
9
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
