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54ACT251FMQB PDF预览

54ACT251FMQB

更新时间: 2024-01-26 13:03:03
品牌 Logo 应用领域
其他 - ETC 复用器
页数 文件大小 规格书
10页 152K
描述
8-Input Digital Multiplexer

54ACT251FMQB 技术参数

生命周期:Obsolete包装说明:CERAMIC, LCC-20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.39Is Samacsys:N
系列:ACTJESD-30 代码:S-CQCC-N20
长度:8.89 mm负载电容(CL):50 pF
逻辑集成电路类型:MULTIPLEXER功能数量:1
输入次数:8输出次数:1
端子数量:20最高工作温度:125 °C
最低工作温度:-55 °C输出特性:3-STATE
输出极性:COMPLEMENTARY封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:QCCN封装形状:SQUARE
封装形式:CHIP CARRIER传播延迟(tpd):19.5 ns
认证状态:Not Qualified座面最大高度:1.905 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD宽度:8.89 mm
Base Number Matches:1

54ACT251FMQB 数据手册

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Connection Diagrams  
Functional Description  
This device is a logical implementation of a single-pole,  
8-position switch with the switch position controlled by the  
state of three Select inputs, S0, S1, S2. Both true and  
complementary outputs are provided. The Output Enable in-  
put ( OE) is active LOW. When it is activated, the logic func-  
tion provided at the output is:  
Pin Assignment  
for DIP and Flatpak  
=
Z
OE (I0 S0 S1 S2 + I1S0 S1 S  
+
2
I2 S0 S S2 + I3 S S1 S2  
+
1
0
I4 S0 S1 S2 + I5 S S1 S2  
+
0
I6 S0 S S2 + I7 S0 S1 S2)  
1
When the Output Enable is HIGH, both outputs are in the  
high impedance (High Z) state. This feature allows multi-  
plexer expansion by tying the outputs of up to 128 devices  
together. When the outputs of the TRI-STATE devices are  
tied together, all but one device must be in the high imped-  
ance state to avoid high currents that would exceed the  
maximum ratings. The Output Enable signals should be de-  
signed to ensure there is no overlap in the active-LOW por-  
tion of the enable voltages.  
DS100284-3  
Pin Assignment  
for LCC  
Truth Table  
Inputs  
Outputs  
OE  
H
L
S2  
X
L
S1  
X
L
S0  
X
L
Z
Z
Z
Z
I0  
I1  
I2  
I3  
I4  
I5  
I6  
I7  
I0  
I1  
I2  
I3  
I4  
I5  
I6  
I7  
L
L
L
H
L
L
L
H
H
L
L
L
H
L
L
H
H
H
H
DS100284-4  
L
L
H
L
L
H
H
L
H
=
=
=
=
H
L
X
Z
HIGH Voltage Level  
LOW Voltage Level  
Immaterial  
High Impedance  
www.national.com  
2

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