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WED8L24258V10BC 参数 Datasheet PDF下载

WED8L24258V10BC图片预览
型号: WED8L24258V10BC
PDF下载: 下载PDF文件 查看货源
内容描述: 异步SRAM , 3.3V , 256Kx24 [Asynchronous SRAM, 3.3V, 256Kx24]
分类和应用: 静态存储器
文件页数/大小: 5 页 / 443 K
品牌: WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
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WED8L24258V  
ABSOLUTEMAXIMUMRATINGS  
RECOMMENDEDDCOPERATINGCONDITIONS  
Voltage on any pin relative to VSS  
OperatingTemperatureTA(Ambient)  
Commercial  
-0.5V to 4.6V  
Parameter  
Supply Voltage  
Supply  
Input High Voltage  
Input Low Voltage  
Sym  
VCC  
Min  
3.135  
VSS  
Typ  
3.3  
000V  
-- VCC+0.3 V  
--  
Max Units  
3.465  
V
0°C to + 70°C  
-40°C to +85°C  
-55°C to +125°C  
1.5 Watts  
Voltage  
Industrial  
VIH  
VIL  
2.2  
-0.3  
StorageTemperature  
Power Dissipation  
Output Current.  
0.8  
V
50 mA  
FIG. 2  
FIG. 3  
*Stress greater than those listed under "Absolute Maximum Ratings" may cause permanent  
damage to the device. This is a stress rating only and functional operation of the device at  
these or any other conditions greater than those indicated in the operational sections of this  
specification is not implied. Exposure to absolute maximum rating conditions for extended  
periods may affect reliability.  
VCC  
319  
Q
Z0=50Ω  
DOUT  
65 pF  
RL = 50Ω  
5 pF  
ACTESTCONDITIONS  
353Ω  
VL = 1.5V  
Input Pulse Levels  
VSS to 3.0V  
5ns  
Input Rise and Fall Times  
Input and Output Timing Levels  
Output Load  
1.5V  
Figure 2  
NOTE: For TEHQZ,TGHQZ and TWLQZ, Figure 3  
DCELECTRICALCHARACTERISTICS  
Parameter  
Sym  
ICC1  
ICC2  
ICC3  
Conditions  
Min  
Max  
Units  
10ns  
12-15ns  
0480mA 50  
Operating Power Supply Current  
Standby (TTL) Supply Current  
W= VIL,  
Min Cycle  
E > VIH,  
II/O  
VIN  
= mA,  
0
<
VIL  
or  
150150mA  
VIN > VIH, f=ØMHz  
Full Standby CMOS  
Supply Current  
E > VCC-0.2V  
VIN > VCC-0.2V or  
VIN < 0.2V  
90  
90  
mA  
Input Leakage Current  
Output Leakage Current  
Output High Volltage  
Output Low Voltage  
ILI  
ILO  
VOH  
VOL  
VIN = 0V to VCC  
V I/O = 0V to VCC  
IOH = -4.0mA  
±10  
±10  
±10  
±10  
µA  
µA  
V
2.4  
IOL = 4.0mA  
0.4  
0.4  
V
TRUTHTABLE  
CAPACITANCE  
(f=1.0MHz, VIN=VCC or VSS)  
G
X
H
L
E0  
H
L
L
L
H
H
L
L
H
H
E2  
H
L
L
H
L
H
L
H
L
E3  
H
L
W
X
H
H
H
H
H
L
Mode  
Standby  
Output Deselect  
Read (24 bit)  
Read  
Read  
Read  
Write (24 bit)  
Write  
Output  
High Z ICC2,ICC3  
High Z  
DOUT  
DQ0-7  
DQ8-15  
DQ16-23  
DIN  
Power  
Parameter  
Address Lines  
Sym  
CA  
Max  
8
Unit  
pF  
ICC1  
ICC1  
ICC1  
ICC1  
ICC1  
ICC1  
ICC1  
ICC1  
ICC1  
L
Data Lines  
CD/Q  
10pF  
L
H
H
L
Write & Output Enable Lines  
Chip Enable Lines  
W, G  
EØ, E2, E3  
8
8
pF  
pF  
L
L
X
X
X
X
These parameters are sampled, not 100% tested.  
L
H
H
L
L
DQ0-7  
DQ8-15  
DQ16-23  
L
Write  
H
L
Write  
July 2002 Rev. 0A  
ECO #15432  
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com  
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