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PDF 54AC241 Data sheet ( Hoja de datos )

Número de pieza 54AC241
Descripción Octal Buffer/Line Driver
Fabricantes National Semiconductor 
Logotipo National Semiconductor Logotipo



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No Preview Available ! 54AC241 Hoja de datos, Descripción, Manual

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August 1998
54AC241 54ACT241
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
The ’AC/’ACT241 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver and
bus-oriented transmitter or receiver which provides improved
PC board density.
Features
n ICC and IOZ reduced by 50%
n Non-inverting TRI-STATE outputs drive bus lines or
buffer memory address registers
n Outputs source/sink 24 mA
n ’ACT241 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC241: 5962-87551
— ’ACT241: 5962-89847
Logic Symbol
Connection Diagrams
Pin Assignment
for DIP and Flatpak
DS100281-2
Pin
Names
OE1,
OE2
I0– I7
O0– O7
Description
TRI-STATE Output Enable Input
TRI-STATE Output Enable Input (Active
HIGH)
Inputs
Outputs
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100281
DS100281-1
Pin Assignment
for LCC
DS100281-3
www.national.com

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54AC241 pdf
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
Data to Output
tPHL Propagation Delay
Data to Output
tPZH Output Enable Time
tPZL Output Enable Time
tPHZ Output Disable Time
tPLZ Output Disable Time
Note 8: Voltage Range 3.3 is 3.3V ±3.3V
Voltage Range 5.0 is 5.0V ±0.5V
AC Electrical Characteristics
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
Symbol
Parameter
tPLH Propagation Delay
Data to Output
tPHL Propagation Delay
Data to Output
tPZH Output Enable Time
tPZL Output Enable Time
tPHZ Output Disable Time
tPLZ Output Disable Time
Note 9: Voltage Range 5.0 is 5.0V ±0.5V
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation
Capacitance
VCC
(V)
(Note 9)
5.0
5.0
5.0
5.0
5.0
5.0
Typ
4.5
45.0
Units
pF
pF
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 12.0
1.0 9.5
1.0 11.5
1.0 9.0
1.0 13.0
1.0 10.0
1.0 13.0
1.0 10.0
1.0 13.0
1.0 11.5
1.0 13.0
1.0 11.5
54ACT
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.0 10.0
1.0 10.0
1.0 11.5
1.0 12.5
1.0 12.5
1.0 12.5
Conditions
VCC = OPEN
VCC = 5.0V
Units
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
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