WS128K32-55G2TME 查看數據表（PDF） - White Electronic Designs => Micro Semi
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WS128K32-55G2TME
White Electronic Designs => Micro Semi
WS128K32-55G2TME Datasheet PDF : 6 Pages
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White Electronic Designs
WS128K32-XG2TXE
ADVANCED
Parameter
Read Cycle
Symbol
Read Cycle Time
tRC
Address Access Time
tAA
Output Hold from Address Change
tOH
Chip Select Access Time
tACS
Output Enable to Output Valid
tOE
Chip Select to Output in Low Z
tCLZ1
Output Enable to Output in Low Z
tOLZ1
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.
AC CHARACTERISTICS
VCC = 5.0V, GND = 0V, -55°C ≤ TA ≤ +125°C
-35
Min
Max
35
35
3
35
15
3
0
20
12
-45
Min
Max
45
45
3
45
20
3
0
20
15
-55
Min
Max
55
55
3
55
30
3
0
20
20
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Parameter
Write Cycle
Symbol
Write Cycle Time
tWC
Chip Select to End of Write
tCW
Address Valid to End of Write
tAW
Data Valid to End of Write
tDW
Write Pulse Width
tWP
Address Setup Time
tAS
Address Hold Time
tAH
Output Active from End of Write
tOW1
Write Enable to Output in High Z
tWHZ1
Data Hold Time
tDH
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
VCC = 5.0V, GND = 0V, -55°C ≤ TA ≤ +125°C
-35
Min
Max
35
25
25
20
25
0
0
0
10
0
-45
Min
Max
45
35
35
25
35
0
0
0
15
0
-55
Min
Max
55
45
45
25
45
0
0
0
20
0
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Current Source
D.U.T.
Ceff = 50 pf
Current Source
December 2000
Rev. 0
FIGURE 2 – AC TEST CIRCUIT
AC Test Conditions
I OL
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
VZ 1.5V
Output Timing Reference Level
1.5
V
(Bipolar Supply)
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75Ω.
I OH
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 Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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