
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS1M8-XCX
PRELIMINARY
November 2002
Rev. 2
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
I
Current Source
D.U.T.
C = 50 pf
I
OL
V
1.5V
(Bipolar Supply)
Current Source
OH
AC CHARACTERISTICS
V
CC
= 5.0V, GND = 0V, -55°C
≤
T
A
≤
+125°C
-70
Min
Max
70
60
60
30
50
0
5
5
25
0
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 Time
1. This parameter is guaranteed by design but not tested.
Symbol
-85
-100
Units
Min
85
75
75
30
50
0
5
5
Max
Min
100
80
80
40
60
0
5
5
Max
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
AH
t
OW
1
t
WHZ
1
t
DH
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
25
35
0
0
AC CHARACTERISTICS
V
CC
= 5.0V, GND = 0V, -55°C
≤
T
A
≤
+125°C
-70
Min
Max
70
70
0
70
5
25
Parameter
Read Cycle
Read Cycle Time
Address Access Time
Output Hold from Address Change
Chip Select Access Time
Chip Select to Output in Low Z
Chip Disable to Output in High Z
1. This parameter is guaranteed by design but not tested.
Symbol
-85
-100
Units
Min
85
Max
Min
100
Max
t
RC
t
AA
t
OH
t
ACS
t
CLZ
1
t
CHZ
1
ns
ns
ns
ns
ns
ns
85
100
0
0
85
100
5
5
25
25
AC TEST CIRCUIT
Notes:
V
Z
is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z0 = 75.
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.
AC Test Conditions
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
Typ
Unit
V
ns
V
V
V
IL
= 0, V
IH
= 3.0
5
1.5
1.5