74F280
74F280 is 9-Bit Parity Generator/Checker manufactured by Fairchild Semiconductor.
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 plement of the Sum Even output.
Ordering Code:
Order Number 74F280SC 74F280SJ 74F280PC Package Number M14A M14D N14A Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation
DS009512
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Unit Loading/Fan Out
Pin Names I0- I8 ∑O ∑E Description
Data Inputs Odd Parity Output Even Parity Output U.L. HIGH/LOW 1.0/1.0 50/33.3 50/33.3 Input IIH/IIL Output IOH/IOL 20 µA/- 0.6 m A
- 1 m A/20 m A
- 1 m A/20 m A
Truth Table
Number of HIGH Inputs I0- I8 0, 2, 4, 6, 8 1, 3, 5, 7, 9
H = HIGH Voltage Level L = LOW Voltage Level
Outputs ∑ Even H L ∑ Odd L H
Logic Diagram
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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Absolute Maximum Ratings(Note 1)
Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output 3-STATE Output Current Applied to Output in LOW State (Max) ESD Last Passing Voltage (Min) twice the rated IOL (m A) 4000V
- 0.5V to VCC
- 0.5V to +5.5V
- 65°C to +150°C
- 55°C to +125°C
- 55°C to +150°C
- 0.5V to +7.0V
- 0.5V to +7.0V
- 30 m A to +5.0 m A
Remended Operating Conditions
Free Air Ambient...