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參數資料
| 型號： | IN74LS157N |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Quad 2-Input Data Selector/Multiplexer |
| 中文描述： | 四2輸入數據選擇器/復用器 |
| 文件頁數： | 1/3頁 |
| 文件大?。?/td> | 144K |
| 代理商： | IN74LS157N |
TECHNICAL DATA
1
Quad 2-Input Data Selector/Multiplexer
This monolitic data selector/multiplexer contains inverters and
drivers to supply full on-chip data selection to the four output gates. A
separate strobe input is provided. A 4-bit word is selected from one of
two sources and is routed to the four outputs. The LS157 has the same
functions and pin connections as the LS257 but the latter is provided
with 3-state outputs.
Buffered Inputs and Outputs
Common Strobe/Select input for all 4 circuits
IN74LS157
ORDERING INFORMATION
IN74LS157N Plastic
IN74LS157D SOIC
T
A
=0
°
to 70
°
C for all
packages
FUNCTION TABLE
Inputs
Outputs
Output
Enable
Select
Y0-Y3
H
X
L
L
L
A0-A3
L
H
B0-B3
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
PIN ASSIGNMENT
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