AC Characteristics
(V
CC
= 3.3V, V
SS
= 0V, Tc = -55°C to +125°C)
Read Cycle
Parameter
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Hold from Address Change
Output Enable to Output Valid
Chip Enable to Output in Low Z *
Output Enable to Output in Low Z *
Chip Deselect to Output in High Z *
Output Disable to Output in High Z *
Sym
t
RC
t
AA
t
ACS
t
OH
t
OE
t
CLZ
t
OLZ
t
CHZ
t
OHZ
3
0
8
8
0
9
3
0
8
8
–020
–017
Min Max Min Max
17
17
17
0
10
3
0
10
10
20
20
20
0
12
3
0
15
15
–025
–035
–045
Min Max Min Max Min Max
25
25
25
0
25
3
0
15
15
35
35
35
0
35
45
45
45
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
* Parameters guaranteed by design but not tested
Write Cycle
Parameter
Write Cycle Time
Chip Enable to End of Write
Address Valid to End of Write
Data Valid to End of Write
Write Pulse Width
Address Setup Time
Output Active from End of Write *
Write to Output in High Z *
Data Hold from Write Time
Address Hold Time
Sym
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
OW
t
WHZ
t
DH
t
AH
0
0
–017
Min Max
17
15
15
12
13
0
0
8
0
1
–020
–025
–035
–045
Min Max Min Max Min Max Min Max
20
15
15
12
13
0
0
11
0
2
25
20
20
15
15
0
0
13
0
2
35
30
30
20
25
0
0
15
0
2
45
35
35
30
35
0
0
15
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
* Parameters guaranteed by design but not tested
Truth Table
Mode
Standby
Read
Read
Write
CE
H
L
L
L
OE
X
L
H
X
WE
X
H
H
L
Data I/O
High Z
Data Out
High Z
Data In
Power
Standby (deselect/power down)
Active
Active (deselected)
Active
Aeroflex Circuit Technology ACT-S512K32V
3
SCD3360 REV B 12/17/98 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
