54AC280FM-MLS [TI]
AC SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, CDFP14, CERAMIC, FP-14;
| 型号： | 54AC280FM-MLS |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | AC SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, CDFP14, CERAMIC, FP-14 CD 输出元件 逻辑集成电路 |
| 文件： | 总6页 (文件大小：179K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
September 1998
54AC280
9-Bit Parity Generator/Checker
General Description
Features
n ICC reduced by 50%
The ’AC280 is a high-speed parity generator/checker that
accepts nine bits of input data and detects whether an even
or an odd number of these inputs is HIGH. If an even number
of inputs is HIGH, the Sum Even output is HIGH. If an odd
number is HIGH, the Sum Even output is LOW. The Sum
Odd output is the complement of the Sum Even output.
n 9-bit width for memory applications
n Standard Microcircuit Drawing (SMD) 5962-92201
Logic Symbols
Connection Diagrams
Pin Assignment for
DIP and Flatpak
DS100359-1
IEEE/IEC
DS100359-2
Pin Assignment for LCC
DS100359-4
Pin
Description
Data Inputs
DS100359-3
Names
I0–I8
Truth Table
∑
∑
Odd Parity Output
Even Parity Output
O
E
Number of
HIGH Inputs
I0–I8
Outputs
∑
∑
Odd
Even
0, 2, 4, 6, 8
1, 3, 5, 7, 9
H
L
L
H
=
=
H
L
HIGH Voltage Level
LOW Voltage Level
™
FACT is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100359
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Logic Diagram
DS100359-5
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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2
Absolute Maximum Ratings (Note 1)
CDIP
175˚C
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Recommended Operating
Conditions
Supply Voltage (VCC
)
−0.5V to +7.0V
Supply Voltage (VCC
)
DC Input Diode Current (IIK
)
’AC
2.0V to 6.0V
0V to VCC
0V to VCC
=
VI −0.5V
−20 mA
+20 mA
Input Voltage (VI)
=
VI VCC + 0.5V
Output Voltage (VO
)
DC Input Voltage (VI)
−0.5V to VCC + 0.5V
Operating Temperature (TA)
54AC
DC Output Diode Current (IOK
)
−55˚C to +125˚C
=
VO −0.5V
−20 mA
+20 mA
Minimum Input Edge Rate (∆V/∆t)
’AC Devices
=
VO VCC + 0.5V
DC Output Voltage (VO
DC Output Source
)
−0.5V to VCC + 0.5V
% to 70% of V
VIN from 30
CC
@
VCC 3.3V, 4.5V, 5.5V
125 mV/ns
±
±
or Sink Current (IO
)
50 mA
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, output/input loading variables. National does not recommend
operation of FACT circuits outside databook specifications.
DC VCC or Ground Current
per Output Pin (ICC or IGND
)
50 mA
Storage Temperature (TSTG
Junction Temperature (TJ)
)
−65˚C to +150˚C
DC Characteristics for ’AC Family Devices
54AC
=
Symbol
Parameter
VCC
(V)
TA
Units
Conditions
−55˚C to
+125˚C
Guaranteed Limits
=
VIH
Minimum High Level
Input Voltage
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
2.1
3.15
3.85
0.9
VOUT 0.1V
V
V
V
or VCC − 0.1V
=
VIL
Maximum Low Level
Input Voltage
VOUT 0.1V
1.35
1.65
2.9
or VCC − 0.1V
=
VOH
Minimum High Level
Output Voltage
IOUT −50 µA
4.4
5.4
(Note 2)
=
VIN VIL or VIH
3.0
4.5
5.5
3.0
4.5
5.5
2.4
3.7
4.7
0.1
0.1
0.1
IOH = −12 mA
IOH = −24 mA
IOH = −24 mA
V
V
=
VOL
Maximum Low Level
Output Voltage
IOUT 50 µA
(Note 2)
=
VIN VIL or VIH
3.0
4.5
5.5
5.5
0.50
0.50
0.50
IOL = 12 mA
IOL = 24 mA
IOL = 24 mA
V
=
±
IIN
Maximum Input
Leakage Current
1.0
µA
VI VCC, GND
=
VOLD 1.65V Max
IOLD
IOHD
Minimum Dynamic
Output Current
(Note 3)
5.5
5.5
50
mA
mA
=
VOHD 3.85V Min
−50
3
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DC Characteristics for ’AC Family Devices (Continued)
54AC
=
Symbol
Parameter
VCC
(V)
TA
Units
Conditions
−55˚C to
+125˚C
Guaranteed Limits
80.0
=
ICC
Maximum Quiescent
Supply Current
5.5
µA
VIN VCC
or GND
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
@
@
Note 4:
I
and I
CC
3.0V are guaranteed to be less than or equal to the respective limit 5.5V V .
IN
CC
AC Electrical Characteristics
54AC
=
VCC
TA −55˚C
Symbol
Parameter
to +125˚C
Units
(V)
=
(Note 5)
CL 50 pF
Min
1.0
1.0
1.0
1.0
Max
tPLH
tPHL
tPLH
tPHL
Propagation Delay
3.3
5.0
3.3
5.0
20.0
14.5
20.0
14.5
ns
ns
∑
In to
Propagation Delay
E
∑
In to
O
±
Note 5: Voltage range 3.3 is 3.3V 0.3V.
±
Voltage range 5.0 is 5.0V 0.5V.
Capacitance
Symbol
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
4.5
Units
pF
Conditions
=
VCC OPEN
CIN
=
VCC 5.0V
CPD
75.0
pF
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4
Physical Dimensions inches (millimeters) unless otherwise noted
20 Terminal Ceramic Leadless Chip Carrier
NS Package Number E20A
14 Lead Ceramic Dual-In-Line Package
NS Package Number J14A
5
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14 Lead Ceramic Flatpak (F)
NS Package Number W14B
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VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys-
tems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, and whose fail-
ure to perform when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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Tel: 1-800-272-9959
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
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