WMS128K8L-15CM データシートの表示（PDF） - White Electronic Designs => Micro Semi
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WMS128K8L-15CM Datasheet PDF : 10 Pages
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WMS128K8-XXX
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-15
-17
-20
-25
-35
Read Cycle
Min Max Min Max Min Max Min Max Min Max
Read Cycle Time
tRC
15
17
20
25
35
Address Access Time
tAA
15
17
20
25
35
Output Hold from Address Change
tOH
0
0
0
0
0
Chip Select Access Time
tACS
15
17
20
25
35
Output Enable to Output Valid
tOE
10
10
12
15
20
Chip Select to Output in Low Z
tCLZ1
3
3
3
3
3
Output Enable to Output in Low Z
tOLZ1
0
0
0
0
0
Chip Disable to Output in High Z
tCHZ1
10
10
10
12
20
Output Disable to Output in High Z tOHZ1
10
10
10
12
20
1. This parameter is guaranteed by design but not tested.
-45
-55
Units
Min Max Min Max
45
55
ns
45
55 ns
0
0
ns
45
55 ns
25
30 ns
3
3
ns
0
0
ns
20
20 ns
20
20 ns
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-15
-17
Write Cycle
Min Max Min Max
Write Cycle Time
tWC
15
17
Chip Select to End of Write
tCW
14
14
Address Valid to End of Write
tAW
14
15
Data Valid to End of Write
tDW
10
10
Write Pulse Width
tWP
14
14
Address Setup Time
tAS
0
0
Address Hold Time
tAH
0
0
Output Active from End of Write
tOW1
3
3
Write Enable to Output in High Z tWHZ1
10
10
Data Hold Time
tDH
0
0
1. This parameter is guaranteed by design but not tested.
-20
Min Max
20
15
15
12
15
0
0
3
12
0
-25
Min Max
25
20
20
15
20
0
0
3
15
0
-35
Min Max
35
25
25
20
25
0
0
4
20
0
-45
Min Max
45
30
30
25
30
0
0
4
25
0
-55
Min Max
55
45
45
25
45
0
0
4
25
0
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC TEST CIRCUIT
I OL
Current Source
D.U.T.
Ceff = 50 pf
I OH
Current Source
VZ ≈ 1.5V
(Bipolar Supply)
3
AC TEST CONDITIONS
Parameter
Typ
Unit
Input Pulse Levels
VIL = 0, VIH = 3.0 V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
Output Timing Reference Level
1.5
V
NOTES:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75 Ω.
VZ is typically the midpoint of VOH and VOL.
IOL & IOH are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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