WSF512K16-XXX データシートの表示（PDF） - White Electronic Designs Corporation
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WSF512K16-XXX Datasheet PDF : 15 Pages
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White Electronic Designs
WSF512K16-XXX
SRAM AC CHARACTERISTICS
VCC = 5.0V, -55°C ≤ TA ≤ +125°C
Parameter
Read Cycle
-35
-70
Symbol
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, -55°C ≤ TA ≤ +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
-35
-70
Symbol
Unit
Min Max Min Max
tWC 35
70
ns
tCW 25
60
ns
tAW 25
60
ns
tDW 20
30
ns
tWP 25
50
ns
tAS 0
0
ns
tAH 0
5
ns
tOW1 0
5
ns
tWHZ1
15
25 ns
tDH 0
0
ns
1. This parameter is guaranteed by design but not tested.
FIGURE 3
AC Test Circuit
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 = 75Ω.
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 Corp. reserves the right to change products or specifications without notice.
May 2006
Rev. 6
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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