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PDF 54ACQ573 Data sheet ( Hoja de datos )
| Número de pieza | 54ACQ573 | |
| Descripción | Quiet Series Octal Latch | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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August 1998
54ACQ573 • 54ACTQ573
Quiet Series Octal Latch with TRI-STATE® Outputs
General Description
The ’ACQ/’ACTQ573 is a high-speed octal latch with buff-
ered common Latch Enable (LE) and buffered common Out-
put Enable (OE) inputs. The ’ACQ/’ACTQ573 is functionally
identical to the ’ACQ/’ACTQ373 but with inputs and outputs
on opposite sides of the package. The ’ACQ/’ACTQ utilizes
NSC Quiet Series technology to guarantee quiet output
switching and improved dynamic threshold performance.
FACT Quiet Series™ features GTO™ output control and un-
dershoot corrector in addition to a split ground bus for supe-
rior performance.
n Guaranteed simultaneous switching noise level and
dynamic threshold performance
n Improved latch-up immunity
n Inputs and outputs on opposite sides of package allow
easy interface with microprocessors
n Outputs source/sink 24 mA
n Faster prop delays than standard ’ACT573
n 4 kV minimum ESD immunity
n Standard Microcircuit Drawing (SMD)
— ’ACTQ573: 5962-92194
— ’ACQ573: 5962-92180
Features
n ICC and IOZ reduced by 50%
Logic Symbols
IEEE/IEC
DS100242-1
Pin Names
D0– D7
LE
OE
O0– O7
Description
Data Inputs
Latch Enable Input
TRI-STATE Output Enable Input
TRI-STATE Latch Outputs
DS100242-2
GTO™ is a trademark of National Semiconductor Corporation.
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
FACT Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100242
www.national.com
1 page  
DC Characteristics for ’ACTQ Family Devices (Continued)
54ACTQ
Symbol
Parameter
VCC TA = −55˚C to +125˚C
(V) Guaranteed Limits
IOLD
IOHD
ICC
(Note 9)
Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
50
−50
80.0
VOLP
VOLV
Quiet Output
Maximum Dynamic VOL
Quiet Output
Minimum Dynamic VOL
5.0
5.0
1.5
−1.2
Note 8: All outputs loaded; thresholds on input associated with output under test.
Note 9: Maximum test duration 2.0 ms, one output loaded at a time.
Note 10: ICC for 54ACTQ @ 25˚C is identical to 74ACTQ @ 25˚C.
Note 11: Plastic DIP package.
Note 12: Max number of outputs defined as (n). Data Inputs are driven 0V to 3V. One output @ GND.
Units
mA
mA
µA
V
V
Conditions
VOLD = 1.65V Max
VOHD = 3.85V Min
VIN = VCC
or GND (Note 10)
(Notes 11, 12)
(Notes 11, 12)
AC Electrical Characteristics
Symbol
Parameter
tPHL,
Propagation Delay
tPLH
Dn to On
tPLH,
Propagation Delay
tPHL
LE to On
tPZL,
Output Enable Time
tPZH
tPHZ,
Output Disable Time
tPLZ
Note 13: Voltage Range 5.0 is 5.0V ±0.5V
Voltage Range 3.3 is 3.3V ±0.3V
VCC
(V)
(Note 13)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
54ACQ
TA = −55˚C
to +125˚C
CL = 50 pF
Min Max
1.5 16.0
1.5 11.0
1.5 15.0
1.5 11.0
1.5 13.5
1.5 10.0
1.5 13.0
1.0 10.5
Units
ns
ns
ns
ns
Fig.
No.
AC Operating Requirements
Symbol
Parameter
tS Setup Time, HIGH or LOW
Dn to LE
tH Hold Time, HIGH or LOW
Dn to LE
tW LE Pulse Width, HIGH
Note 14: Voltage Range 5.0 is 5.0V ±0.5V
Voltage Range 3.3 is 3.3V ±0.3V
VCC
(V)
(Note 14)
3.3
5.0
3.3
5.0
3.3
5.0
5
54ACQ
TA = −55˚C
to +125˚C
CL = 50 pF
Guaranteed
Minimum
4.0
4.0
2.0
2.0
5.0
5.0
Units
ns
ns
ns
www.national.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 54ACQ573.PDF ] | |
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