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Details, datasheet, quote on part number:JM38510/34901BC
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Datasheet text preview:
54F 74F280 9-Bit Parity Generator Checker
August 1995
54F 74F280 9-Bit Parity Generator Checker
General Description
The 'F280 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
Y
eatures
Guaranteed 4000V minimum ESD protection
F
Commercial 74F280PC
Military
Package Number N14A
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
54F280DM (Note 2) 74F280SC (Note 1) 74F280SJ (Note 1) 54F280FM (Note 2) 54F280LM (Note 2)
J14A M14A M14D W14B E20A
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX L ote 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
ogic 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
C TRI-STATE is a registered trademark of National Semiconductor Corporation
1995 National Semiconductor Corporation
TL F 9512
RRD-B30M115 Printed in U S A
Unit Loading Fan Out
54F 74F Pin Names Description UL HIGH LOW 10 10 50 33 3 50 33 3 Input IIH IIL Output IOH IOL 20 mA b0 6 mA b 1 mA 20 mA b 1 mA 20 mA
I0 I 8 RO RE
Data Inputs Odd Parity Output Even Parity Output
Truth Table
Number of HIGH Inputs I0 I8 02468 13579
H e HIGH Voltage Level L e LOW Voltage Level
Outputs R Even H L R Odd L H
Logic Diagram
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 2
Absolute Maximum Ratings (Note 1)
p If Military Aerospace specified devices are required lease contact the National Semiconductor Sales S Office Distributors for availability and specifications torage Temperature Ambient Temperature under Bias Junction Temperature under Bias Plastic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) Standard Output TRI-STATE Output Current Applied to Output in LOW State (Max) ESD Last Passing Voltage (Min)
ecommended Operating Conditions
Free Air Ambient Temperature Military Commercial Supply Voltage Military Commercial
b 55
C to a 150 C b 55 C to a 125 C b 55 C to a 175 C b 55 C to a 150 C
b 0 5V to a 7 0V b 0 5V to a 7 0V b 30 mA to a 5 0 mA
b 65
C to a 125 C 0 C to a 70 C
a 4 5V to a 5 5V a 4 5V to a 5 5V
b 0 5V to VCC b 0 5V to a 5 5V
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 N these conditions is not implied ote 2 Either voltage limit or current limit is sufficient to protect inputs R
DC Electrical Characteristics
Symbol VIH VIL VCD VOH Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Short-Circuit Current Power Supply Current
b 60
54F 74F Typ Max
Units V 08
b1 2
VCC
Conditions Recognized as a HIGH Signal Recognized as a LOW Signal
20
V V V Min Min
IIN e b18 mA IOH e b1 mA IOH e b1 mA IOH e b1 mA IOL e 20 mA IOL e 20 mA VIN e 2 7V VIN e 7 0V VOUT e VCC IID e 1 9 mA All Other Pins Grounded VIOD e 150 mV All Other Pins Grounded VIN e 0 5V VOUT e 0V VO e HIGH
54F 10% VCC 74F 10% VCC 74F 5% VCC 54F 10% VCC 74F 10% VCC 54F 74F 54F 74F 54F 74F 74F 74F
25 25 27 05 05 20 0 50 100 70 250 50 4 75 3 75
b0 6 b 150
VOL IIH IBVI ICEX VID IOD IIL IOS ICCH
V mA mA mA V mA mA mA mA
Min Max Max Max 00 00 Max Max Max
25
38
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