WS512K16-17 Просмотр технического описания (PDF) - White Electronic Designs Corporation
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WS512K16-17 Datasheet PDF : 6 Pages
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WS512K16-XXX
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-17
-20
-25
Read Cycle
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
17
20
25
Address Access Time
tAA
17
20
25
Output Hold from Address Change
tOH
0
0
0
Chip Select Access Time
tACS
17
20
25
Output Enable to Output Valid
tOE
10
12
15
Chip Select to Output in Low Z
tCLZ1
2
5
5
Output Enable to Output in Low Z
tOLZ1
0
0
0
Chip Disable to Output in High Z
tCHZ1
9
10
12
Output Disable to Output in High Z
tOHZ1
9
10
12
LB, UB Access Time
tBA
10
12
14
LB, UB Enable to Low Z Output
tBLZ1
0
0
0
LB, UB Disable to High Z Output
tBHZ1
9
10
12
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-17
Write Cycle
Min
Max
Write Cycle Time
tWC
17
Chip Select to End of Write
tCW
14
Address Valid to End of Write
tAW
14
Data Valid to End of Write
tDW
10
Write Pulse Width
tWP
14
Address Setup Time
tAS
0
Address Hold Time
tAH
0
Output Active from End of Write
tOW1
0
Write Enable to Output in High Z
tWHZ1
9
Data Hold Time
tDH
0
LB, UB Valid to End of Write
tBW
14
1. This parameter is guaranteed by design but not tested.
-20
Min
Max
20
17
17
12
17
0
0
0
10
0
17
-25
Min
Max
25
20
20
15
20
0
0
0
10
0
20
-35
Units
Min
Max
35
ns
35
ns
0
ns
35
ns
20
ns
5
ns
0
ns
15
ns
3
15
ns
17
ns
0
ns
15
ns
-35
Min
Max
35
25
25
20
25
0
0
0
15
0
25
Units
ns
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)
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.
3
White Microelectronics • Phoenix, AZ • (602) 437-1520
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