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74F280 PDF даташит

Спецификация 74F280 изготовлена ​​​​«National» и имеет функцию, называемую «9-Bit Parity Generator/Checker».

Детали детали

Номер произв 74F280
Описание 9-Bit Parity Generator/Checker
Производители National
логотип National логотип 

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74F280 Даташит, Описание, Даташиты
August 1995
54F 74F280
9-Bit Parity Generator Checker
General Description
The ’F280 is a high-speed parity generator checker that ac-
cepts 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
Features
Y Guaranteed 4000V minimum ESD protection
Commercial
74F280PC
74F280SC (Note 1)
74F280SJ (Note 1)
Military
54F280DM (Note 2)
54F280FM (Note 2)
54F280LM (Note 2)
Package
Number
N14A
J14A
M14A
M14D
W14B
E20A
Package Description
14-Lead (0 300 Wide) Molded Dual-In-Line
14-Lead Ceramic Dual-In-Line
14-Lead (0 150 Wide) Molded Small Outline JEDEC
14-Lead (0 300 Wide) Molded Small Outline EIAJ
14-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
Pin Assignment
for LCC
TL F 9512–3
IEEE IEC
TL F 9512 – 1
TL F 9512 – 2
TL F 9512–5
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9512
RRD-B30M115 Printed in U S A









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74F280 Даташит, Описание, Даташиты
Unit Loading Fan Out
Pin Names
Description
I0 – I8
RO
RE
Data Inputs
Odd Parity Output
Even Parity Output
54F 74F
UL
HIGH LOW
10 10
50 33 3
50 33 3
Input IIH IIL
Output IOH IOL
20 mA b0 6 mA
b1 mA 20 mA
b1 mA 20 mA
Truth Table
Logic Diagram
Number of
HIGH Inputs
I0 – I8
02468
13579
H e HIGH Voltage Level
L e LOW Voltage Level
Outputs
R Even
R Odd
HL
LH
TL F 9512 – 4
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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74F280 Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Storage Temperature
b65 C to a150 C
Ambient Temperature under Bias
b55 C to a125 C
Junction Temperature under Bias
Plastic
b55 C to a175 C
b55 C to a150 C
VCC Pin Potential to
Ground Pin
b0 5V to a7 0V
Input Voltage (Note 2)
b0 5V to a7 0V
Input Current (Note 2)
b30 mA to a5 0 mA
Voltage Applied to Output
in HIGH State (with VCC e 0V)
Standard Output
TRI-STATE Output
b0 5V to VCC
b0 5V to a5 5V
Current Applied to Output
in LOW State (Max)
ESD Last Passing Voltage (Min)
twice the rated IOL (mA)
4000V
Note 1 Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2 Either voltage limit or current limit is sufficient to protect inputs
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Commercial
b55 C to a125 C
0 C to a70 C
Supply Voltage
Military
Commercial
a4 5V to a5 5V
a4 5V to a5 5V
DC Electrical Characteristics
Symbol
Parameter
54F 74F
Min Typ Max
Units VCC
Conditions
VIH
VIL
VCD
VOH
VOL
IIH
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH Current
54F 10% VCC
74F 10% VCC
74F 5% VCC
54F 10% VCC
74F 10% VCC
54F
74F
20
25
25
27
V Recognized as a HIGH Signal
08 V
Recognized as a LOW Signal
b1 2 V Min IIN e b18 mA
IOH e b1 mA
V Min IOH e b1 mA
IOH e b1 mA
0 5 V Min IOL e 20 mA
0 5 IOL e 20 mA
20 0
50
mA Max VIN e 2 7V
IBVI Input HIGH Current 54F
Breakdown Test
74F
100 mA Max VIN e 7 0V
70
ICEX
Output HIGH
Leakage Current
54F
74F
250 mA Max VOUT e VCC
50
VID Input Leakage Test 74F
4 75
V 0 0 IID e 1 9 mA
All Other Pins Grounded
IOD
Output Leakage
74F
Circuit Current
3 75 mA 0 0 VIOD e 150 mV
All Other Pins Grounded
IIL
IOS
ICCH
Input LOW Current
Output Short-Circuit Current
Power Supply Current
b0 6 mA Max VIN e 0 5V
b60
b150 mA Max VOUT e 0V
25 38 mA Max VO e HIGH
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