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DM54LS251W-MIL PDF预览

DM54LS251W-MIL

更新时间: 2024-02-22 19:21:29
品牌 Logo 应用领域
美国国家半导体 - NSC 复用器
页数 文件大小 规格书
6页 138K
描述
IC,LOGIC MUX,SINGLE,8-INPUT,LS-TTL,FP,16PIN,CERAMIC

DM54LS251W-MIL 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:DFP, FL16,.3Reach Compliance Code:unknown
风险等级:5.92JESD-30 代码:R-XDFP-F16
JESD-609代码:e0逻辑集成电路类型:MULTIPLEXER
最大I(ol):0.004 A功能数量:1
输入次数:8端子数量:16
最高工作温度:125 °C最低工作温度:-55 °C
输出特性:3-STATE封装主体材料:CERAMIC
封装代码:DFP封装等效代码:FL16,.3
封装形状:RECTANGULAR封装形式:FLATPACK
电源:5 V最大电源电流(ICC):12 mA
Prop。Delay @ Nom-Sup:45 ns认证状态:Not Qualified
筛选级别:MIL-STD-883 Class B (Modified)子类别:Multiplexer/Demultiplexers
标称供电电压 (Vsup):5 V表面贴装:YES
技术:TTL温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:FLAT
端子节距:1.27 mm端子位置:DUAL
Base Number Matches:1

DM54LS251W-MIL 数据手册

 浏览型号DM54LS251W-MIL的Datasheet PDF文件第2页浏览型号DM54LS251W-MIL的Datasheet PDF文件第3页浏览型号DM54LS251W-MIL的Datasheet PDF文件第4页浏览型号DM54LS251W-MIL的Datasheet PDF文件第5页浏览型号DM54LS251W-MIL的Datasheet PDF文件第6页 
June 1989  
DM54LS251/DM74LS251  
TRI-STATE Data Selectors/Multiplexers  
É
General Description  
Features  
Y
TRI-STATE version of LS151  
These data selectors/multiplexers contain full on-chip bina-  
ry decoding to select one-of-eight data sources, and feature  
a strobe-controlled TRI-STATE output. The strobe must be  
at a low logic level to enable these devices. The TRI-STATE  
outputs permit direct connection to a common bus. When  
the strobe input is high, both outputs are in a high-imped-  
ance state in which both the upper and lower transistors of  
each totem-pole output are off, and the output neither drives  
nor loads the bus significantly. When the strobe is low, the  
outputs are activated and operate as standard TTL totem-  
pole outputs.  
Y
Interface directly with system bus  
Y
Perform parallel-to-serial conversion  
Y
Permit multiplexing from N-lines to one line  
Y
Complementary outputs provide true and inverted data  
Maximum number of common outputs  
54LS 49  
Y
Y
Y
74LS 129  
Typical propagation delay time (D to Y)  
54LS 17 ns  
74LS 17 ns  
To minimize the possibility that two outputs will attempt to  
take a common bus to opposite logic levels, the output con-  
trol circuitry is designed so that the average output disable  
time is shorter than the average output enable time.  
Typical power dissipation  
54LS 35 mW  
74LS 35 mW  
Connection Diagram  
Function Table  
Dual-In-Line Package  
Inputs  
Select  
Outputs  
Strobe  
S
Y
W
C
B
A
X
L
X
L
X
L
H
L
L
L
L
L
L
L
L
Z
Z
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
L
L
H
L
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
e
e
e
H
X
High Logic Level, L  
Low Logic Level,  
e
Don’t Care, Z  
High Impedance (Off)  
e
D0, D1 . . . D7  
The level of the respective D input  
TL/F/6415–1  
Order Number DM54LS251J, DM54LS251W,  
DM74LS251M or DM74LS251N  
See NS Package Number J16A, M16A, N16E or W16A  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
C
1995 National Semiconductor Corporation  
TL/F/6415  
RRD-B30M105/Printed in U. S. A.  

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