WS1M32-25G3CA Просмотр технического описания (PDF) - White Electronic Designs => Micro Semi
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WS1M32-25G3CA Datasheet PDF : 8 Pages
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White Electronic Designs
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-17
Read Cycle
Min
Read Cycle Time
tRC
17
Address Access Time
tAA
Output Hold from Address Change
tOH
0
Chip Select Access Time
tACS
Output Enable to Output Valid
tOE
Chip Select to Output in Low Z
tCLZ1
2
Output Enable to Output in Low Z
tOLZ1
0
Chip Disable to Output in High Z
tCHZ1
Output Disable to Output in High Z tOHZ1
1. This parameter is guaranteed by design but not tested.
Max
17
17
10
12
12
-20
Min
Max
20
20
0
20
10
2
0
12
12
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-17
Write Cycle
Min
Write Cycle Time
tWC
17
Chip Select to End of Write
tCW
15
Address Valid to End of Write
tAW
15
Data Valid to End of Write
tDW
11
Write Pulse Width
tWP
15
Address Setup Time
tAS
2
Address Hold Time
tAH
0
Output Active from End of Write
t OW1
2
Write Enable to Output in High Z tWHZ1
Data Hold Time
tDH
0
1. This parameter is guaranteed by design but not tested.
Max
9
-20
Min
Max
20
15
15
12
15
2
0
3
11
0
WS1M32-XXX
-25
Min
25
0
2
0
Max
25
25
12
12
12
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
-25
Min
Max
25
17
17
13
17
2
0
4
13
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
VZ 1.5V
(Bipolar Supply)
I OH
Current Source
White Electronic Designs Corporation Phoenix AZ (602) 437-1520
4
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.
W IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75 .
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.
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