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Número de pieza
componentes Descripción
74F545PC Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
74F545PC
Octal Bidirectional Transceiver with 3-STATE Outputs
Fairchild Semiconductor
74F545PC Datasheet PDF : 6 Pages
1
2
3
4
5
6
Unit Loading/Fan Out
Pin Names
OE
T/R
A
0
–A
7
B
0
–B
7
Description
U.L.
HIGH/LOW
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A 3-STATE Inputs or
3-STATE Outputs
Side B 3-STATE Inputs or
3-STATE Outputs
1.0/2.0
1.0/2.0
3.5/1.083
150/40 (33.3)
3.5/1.083
600/106.6 (80)
Input I
IH
/I
IL
Output I
OH
/I
OL
20
µ
A/
−
1.2 mA
20
µ
A/
−
1.2 mA
70
µ
A/
−
650
µ
A
−
3 mA/24 mA (20 mA)
70
µ
A/
−
650
µ
A
−
12 mA/64 mA (48 mA)
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
Logic Diagram
Inputs
OE
T/R
L
L
L
H
H
X
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
High Z
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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