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SN74LS257D PDF预览

SN74LS257D

更新时间: 2024-11-05 23:06:19
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 复用器逻辑集成电路光电二极管输出元件输入元件
页数 文件大小 规格书
6页 185K
描述
QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

SN74LS257D 数据手册

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SN54/74LS257B  
SN54/74LS258B  
QUAD 2-INPUT MULTIPLEXER  
WITH 3-STATE OUTPUTS  
The LSTTL/MSI SN54/74LS257B and the SN54/74LS258B are Quad  
2-Input Multiplexers with 3-state outputs. Four bits of data from two sources  
can be selected using a Common Data Select input. The four outputs present  
the selected data in true (non-inverted) form. The outputs may be switched to  
QUAD 2-INPUT MULTIPLEXER  
WITH 3-STATE OUTPUTS  
a high impedance state with a HIGH on the common Output Enable (E ) In-  
O
LOW POWER SCHOTTKY  
put, allowing the outputs to interface directly with bus oriented systems. It is  
fabricated with the Schottky barrier diode process for high speed and is com-  
pletely compatible with all Motorola TTL families.  
Schottky Process For High Speed  
Multiplexer Expansion By Tying Outputs Together  
Non-Inverting 3-State Outputs  
Input Clamp Diodes Limit High Speed Termination Effects  
Special Circuitry Ensures Glitch Free Multiplexing  
ESD > 3500 Volts  
J SUFFIX  
CERAMIC  
CASE 620-09  
16  
1
N SUFFIX  
PLASTIC  
CONNECTION DIAGRAM DIP (TOP VIEW)  
CASE 648-08  
16  
1
D SUFFIX  
SOIC  
CASE 751B-03  
SN54/74LS257B  
16  
1
ORDERING INFORMATION  
SN54LSXXXJ  
Ceramic  
SN74LSXXXN Plastic  
SN74LSXXXD SOIC  
NOTE:  
The Flatpak version  
has the same pinouts  
SN54/74LS258B  
(Connection Diagram) as  
the Dual In-Line Package.  
FAST AND LS TTL DATA  
5-427  

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