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參數(shù)資料
| 型號： | WS1M8V-55CMA |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | SRAM |
| 英文描述： | 1M X 8 STANDARD SRAM, 55 ns, CDIP32 |
| 封裝： | 0.600 INCH, HERMETIC SEALED, SIDE BRAZED, CERAMIC, DIP-32 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大小： | 319K |
| 代理商： | WS1M8V-55CMA |
WS1M8V-XCX
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
October, 2002
Rev. 2
White Electronic Designs Corp. reserves the right to change products or specications without notice.
ADVANCED*
AC CHARACTERISTICS
VCC = 3.3V, GND = 0V, -55°C ≤ TA ≤ +125°C)
Parameter
Symbol
-17
-20
-25
-35
-45
-55
Units
Read Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
17
20
25
35
45
55
ns
Address Access Time
tAA
17
20
25
35
45
55
ns
Output Hold from Address Change
tOH
000000
ns
Chip Select Access Time
tACS
17
20
25
35
45
55
ns
Chip Select to Output in Low Z
tCLZ1
222444
ns
Chip Disable to Output in High Z
tCHZ1
9
1012152020
ns
NOTES:
1. This parameter is guaranteed by design but not tested.
2. OE# is internally tied to GND.
AC CHARACTERISTICS
VCC = 3.3V, GND = 0V, -55°C ≤ TA ≤ +125°C)
Parameter
Symbol
-17
-20
-25
-35
-45
-55
Units
Write Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
tWC
17
20
25
35
45
55
ns
Chip Select to End of Write
tCW
14
15
25
35
50
ns
Address Valid to End of Write
tAW
14
15
25
35
50
ns
Data Valid to End of Write
tDW
9
1010202525
ns
Write Pulse Width
tWP
14
15
25
35
40
ns
Address Setup Time
tAS
000000
ns
Address Hold Time
tAH
000055
ns
Output Active from End of Write
tOW1
234455
ns
Write Enable to Output in High Z
tWHZ1
9
10
15
25
ns
Data Hold Time
tDH
000000
ns
NOTES:
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
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 = 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.
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