WSF512K16-XXX データシートの表示（PDF） - White Electronic Designs => Micro Semi
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WSF512K16-XXX Datasheet PDF : 15 Pages
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WSF512K16-XXX
SRAM AC CHARACTERISTICS
(VCC = 5.0V, TA = -55°C to +125°C)
Parameter
Read Cycle
Symbol -35
-70 Unit
Min Max Min Max
Read Cycle Time
tRC 35
70
ns
Address Access Time
tAA
35
70 ns
Output Hold from Address Change tOH 0
5
ns
Chip Select Access Time
tACS
35
70 ns
Output Enable to Output Valid
tOE
25
35 ns
Chip Select to Output in Low Z
tCLZ1
4
10
ns
Output Enable to Output in Low Z tOLZ1 0
5
ns
Chip Disable to Output in High Z tCHZ1
15
25 ns
Output Disable to Output in High Z tOHZ1
15
25 ns
1. This parameter is guaranteed by design but not tested.
SRAM AC CHARACTERISTICS
(VCC = 5.0V, TA = -55°C to +125°C)
Parameter
Write Cycle
Symbol -35
-70
Unit
Min Max Min Max
Write Cycle Time
tWC 35
70
ns
Chip Select to End of Write
tCW 25
60
ns
Address Valid to End of Write
tAW 25
60
ns
Data Valid to End of Write
tDW 20
30
ns
Write Pulse Width
tWP 25
50
ns
Address Setup Time
tAS
0
0
ns
Address Hold Time
tAH
0
5
ns
Output Active from End of Write tOW1 0
5
ns
Write Enable to Output in High Z tWHZ1
15
25 ns
Data Hold from Write Time
tDH
0
0
ns
1. This parameter is guaranteed by design but not tested.
FIG. 3
AC TEST CIRCUIT
I OL
Current Source
D.U.T.
Ceff = 50 pf
I OH
Current Source
VZ ≈ 1.5V
(Bipolar Supply)
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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