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PDF 54AC158 Data sheet ( Hoja de datos )
| Número de pieza | 54AC158 | |
| Descripción | Quad 2-Input Multiplexer | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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www.DataSheet4U.com
July 1998
54AC158 • 54ACT158
Quad 2-Input Multiplexer
General Description
The ’AC/’ACT158 is a high-speed quad 2-input multiplexer. It
selects four bits of data from two sources using the common
Select and Enable inputs. The four buffered outputs present
the selected data in the inverted form. The ’AC/’ACT158 can
also be used as a function generator.
n Outputs source/sink 24 mA
n ’ACT158 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC158: 5962-89729
— ’ACT158: 5962-88755
Features
n ICC reduced by 50%
Logic Symbols
Connection Diagrams
Pin Assignment
for DIP and Flatpak
IEE/IEC
DS100273-1
DS100273-3
Pin Assignment
for LCC
DS100273-2
Pin Names
I0a– I0d
I1a–I 1d
E
S
Za– Zd
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Inverted Outputs
FACT™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100273
DS100273-4
www.national.com
1 page  
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
S to Zn
tPHL Propagation Delay
S to Zn
tPLH Propagation Delay
E to Zn
tPHL Propagation Delay
E to Zn
tPLH Propagation Delay
In to Zn
tPHL Propagation Delay
In to Zn
Note 8: Voltage Range 3.3 is 3.3V ±0.3V
Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 8)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 14.0
1.0 11.0
1.0 14.0
1.0 11.0
1.0 15.0
1.0 12.0
1.0 14.0
1.0 10.0
1.0 11.0
1.0 8.5
1.0 10.0
1.0 7.5
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
S to Zn
tPHL Propagation Delay
S to Zn
tPLH Propagation Delay
E to Zn
tPHL Propagation Delay
E to Zn
tPLH Propagation Delay
In to Zn
tPHL Propagation Delay
In to Zn
Note 9: Voltage Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 9)
5.0
5.0
5.0
5.0
5.0
5.0
54ACT
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 12.0
1.0 11.5
1.0 11.0
1.0 11.0
1.0 9.5
1.0 8.0
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation
Capacitance
Typ
4.5
45.0
Units
pF
pF
Conditions
VCC = OPEN
VCC = 5.0V
Units
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
Fig.
No.
Fig.
No.
5 www.national.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 54AC158.PDF ] | |
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