參數(shù)資料
型號(hào)： WS128K32-120G1UQ
廠商： WHITE ELECTRONIC DESIGNS CORP
元件分類： SRAM
英文描述： 128K X 32 MULTI DEVICE SRAM MODULE, 120 ns, CQMA68
封裝： CERAMIC, LQFP-68
文件頁(yè)數(shù)： 5/10頁(yè)
文件大?。?/td> 395K
代理商： WS128K32-120G1UQ
4
SRAM
MODULES
4
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS128K32-XXX
FIG. 4
AC TEST CIRCUIT
NOTES:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75W.
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.
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
Parameter
Symbol
-70
-85
-100
-120
Units
Read Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
70
85
100
120
ns
Address Access Time
t AA
70
85
100
120
ns
Output Hold from Address Change
tOH
3
333
ns
Chip Select Access Time
t ACS
70
85
100
120
ns
Output Enable to Output Valid
tOE
35
45
50
60
ns
Chip Select to Output in Low Z
tCLZ1
3
333
ns
Output Enable to Output in Low Z
tOLZ1
0
000
ns
Chip Disable to Output in High Z
tCHZ1
25
35
ns
Output Disable to Output in High Z
tOHZ1
25
35
ns
1. This parameter is guaranteed by design but not tested.
ACCHARACTERISTICS
(VCC = 5.0V, TA = -55°C To +125°C)
ACCHARACTERISTICS
(VCC = 5.0V, TA = -55°C To +125°C)
Parameter
Symbol
-70
-85
-100
-120
Units
Write Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
tWC
70
85
100
120
ns
Chip Select to End of Write
tCW
60
75
80
100
ns
Address Valid to End of Write
t AW
60
75
80
100
ns
Data Valid to End of Write
tDW
30
35
40
50
ns
Write Pulse Width
t WP
50
55
70
80
ns
Address Setup Time
t AS
55
5
ns
Address Hold Time
tAH
55
5
ns
Output Active from End of Write
tOW1
55
5
ns
Write Enable to Output in High Z
tWHZ1
25
35
ns
Data Hold Time
tDH
00
0
ns
1. This parameter is guaranteed by design but not tested.
I
Current Source
D.U.T.
C
= 50 pf
eff
I
OL
V
1.5V
(Bipolar Supply)
Z
Current Source
OH
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