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參數(shù)資料
| 型號(hào)： | WMS512K8BV-20FCEA |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | SRAM |
| 英文描述： | 512K X 8 STANDARD SRAM, 20 ns, CDFP36 |
| 封裝： | CERAMIC, DFP-36 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 435K |
| 代理商： | WMS512K8BV-20FCEA |
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WMS512K8BV-XXXE
December 1999
Rev. 3
White Electronic Designs Corp. reserves the right to change products or specications without notice.
AC CHARACTERISTICS
VCC = 3.3V, GND = 0V, -40°C
≤ TA < 85°C
Parameter Read Cycle
Symbol
-15
-17
-20
Unit
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
15
17
20
ns
Address Access Time
tAA
15
17
20
ns
Output Hold from Address Change
tOH
000
ns
Chip Select Access Time
tACS
15
17
20
ns
Output Enable to Output Valid
tOE
7
8
10
ns
Chip Select to Output in Low Z
tCLZ1
222
ns
Output Enable to Output in Low Z
tOLZ1
000
ns
Chip Disable to Output in High Z
tCHZ1
7
8
10
ns
Output Disable to Output in High Z
tOHZ1
7
8
10
ns
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
VCC = 3.3V, GND = 0V, -40°C
≤ TA < 85°C
Parameter Write Cycle
Symbol
-15
-17
-20
Unit
Min
Max
Min
Max
Min
Max
Write Cycle Time
tWC
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
8
9
10
ns
Write Pulse Width
tWP
12
14
ns
Address Setup Time
tAS
000
ns
Address Hold Time
tAH
000
ns
Output Active from End of Write
tOW1
233
ns
Write Enable to Output in High Z
tWHZ1
889
ns
Data Hold Time
tDH
000
ns
1. This parameter is guaranteed by design but not tested.
AC TEST CIRCUIT
AC TEST CONDITIONS
Current Source
IOL
IOH
Ceff = 50 pF
D.U.T.
VZ
≈ 1.5V
(Bipolar Supply)
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
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75.
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WMS512K8BV-20FECE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM|512KX8|BICMOS-TTL|FP|32PIN|CERAMIC |
| WMS512K8BV-20FECEA | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512Kx8 MONOLITHIC SRAM |
| WMS512K8BV-20FEIE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM|512KX8|BICMOS-TTL|FP|32PIN|CERAMIC |
| WMS512K8BV-20FEIEA | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512Kx8 MONOLITHIC SRAM |
| WMS512K8BV-20FIE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SRAM|512KX8|BICMOS-TTL|FP|36PIN|CERAMIC |
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