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參數(shù)資料
| 型號(hào)： | WEDPS512K32V-20BI |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | SRAM |
| 英文描述： | 512K X 32 MULTI DEVICE SRAM MODULE, 20 ns, PBGA143 |
| 封裝： | 16 X 18 MM, PLASTIC, BGA-143 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 126K |
| 代理商： | WEDPS512K32V-20BI |
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WEDPS512K32V-XBX
White Electronic Designs
AC TEST CIRCUIT
Notes:
V
Z is programmable from -2V to +7V.
I
OL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75
W.
V
Z is typically the midpoint of VOH and VOL.
I
OL & 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 = 2.5
V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
Output Timing Reference Level
1.5
V
AC CHARACTERISTICS
(VCC = 3.3V, TA = -55°C to +125°C)
Parameter
Symbol
-12
-15
-17
-20
Units
Read Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
12
15
17
20
ns
Address Access Time
t AA
12
15
17
20
ns
Output Hold from Address Change
tOH
00
0
ns
Chip Select Access Time
t ACS
12
15
17
20
ns
Output Enable to Output Valid
tOE
78
8
1 0
ns
Chip Select to Output in Low Z
tCLZ1
11
1
ns
Output Enable to Output in Low Z
tOLZ1
00
0
ns
Chip Disable to Output in High Z
tCHZ1
78
8
1 0
ns
Output Disable to Output in High Z
tOHZ1
78
8
1 0
ns
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
(VCC = 3.3V, TA = -55°C to +125°C)
Parameter
Symbol
-12
-15
-17
-20
Units
Write Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
tWC
12
15
17
20
ns
Chip Select to End of Write
tCW
10
12
14
ns
Address Valid to End of Write
tAW
10
12
14
ns
Data Valid to End of Write
tDW
89
9
1 0
ns
Write Pulse Width
tWP
10
12
14
ns
Address Setup Time
tAS
00
0
ns
Address Hold Time
tAH
00
0
ns
Output Active from End of Write
tOW1
22
3
ns
Write Enable to Output in High Z
tWHZ1
78
8
9
ns
Data Hold Time
tDH
00
0
ns
1. This parameter is guaranteed by design but not tested.
Current Source
IOL
IOH
Ceff = 50 pf
D.U.T.
VZ
≈ 1.5V
(Bipolar Supply)
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