White Electronic Designs
AC C
HARACTERISTICS
(V
CC
= 5.0V, V
SS
= 0V, T
A
= -55°C
TO
+125°C)
Parameter
Read Cycle
Read Cycle Time
Address Access Time
Output Hold from Address Change
Chip Select Access Time
Output Enable to Output Valid
Chip Select to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Output Disable to Output in High Z
1. This parameter is guaranteed by design but not tested.
t
RC
t
AA
t
OH
t
ACS
t
OE
t
CLZ
1
t
OLZ
t
CHZ
1
1
WS512K32-XXX
Symbol
-70
Min
70
70
5
70
35
10
5
25
25
10
5
5
Max
Min
85
-85
Max
85
-100
Min
100
100
5
Max
-120
Min
120
120
5
120
60
10
5
35
35
35
35
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
85
40
10
5
25
25
100
50
t
OHZ
1
AC C
HARACTERISTICS
(V
CC
= 5.0V, V
SS
= 0V, T
A
= -55°C
TO
+125°C)
Parameter
Write Cycle
Write Cycle Time
Chip Select to End of Write
Address Valid to End of Write
Data Valid to End of Write
Write Pulse Width
Address Setup Time
Address Hold Time
Output Active from End of Write
Write Enable to Output in High Z
Data Hold from Write Time
1. This parameter is guaranteed by design but not tested.
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
AH
t
OW
t
DH
1
Symbol
70
60
60
30
50
0
5
5
-15*
Min Max
Min
85
75
75
30
50
0
5
5
25
0
0
-17
Max
Min
100
80
80
40
60
0
5
5
25
0
-20
Max
-25
Min
120
100
100
40
60
0
5
5
35
0
35
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
WHZ
1
FIG. 3
AC T
EST
C
IRCUIT
Parameter
AC T
EST
C
ONDITIONS
Typ
V
IL
= 0, V
IH
= 3.0
5
1.5
1.5
Unit
V
ns
V
V
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
NOTES:
V
Z
is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z
0
= 75
W.
V
Z
is typically the midpoint of V
OH
and V
OL
.
I
OL
& I
OH
are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
White Electronic Designs Corporation Phoenix AZ (602) 437-1520
4
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
