CD74AC280 9-Bit Odd/Even Parity Generator/Checker |

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9-Bit Odd/Even Parity Generator/Checker

9-Bit Odd/Even Parity Generator/Checker - CD74AC280


The ’AC280 and ’ACT280 are 9-bit odd/even parity generator/checkers that utilize Advanced CMOS Logic technology. Both even and odd parity outputs are available for checking or generating parity for words up to nine bits long. Even parity is indicated (E output to any input of an additional ’AC280, ’ACT280 parity checker.


  • Buffered Inputs
  • Typical Propagation Delay
    - 10ns at VCC = 5V, TA = 25°C, CL = 50pF
  • Exceeds 2kV ESD Protection per MIL-STD-883, Method 3015
  • SCR-Latchup-Resistant CMOS Process and Circuit Design
  • Speed of Bipolar FAST™/AS/S with Significantly Reduced Power Consumption
  • Balanced Propagation Delays
  • AC Types Feature 1.5V to 5.5V Operation and Balanced Noise Immunity at 30% of the Supply
  • ±24mA Output Drive Current
    - Fanout to 15 FAST™ ICs
    - Drives 50 Transmission Lines
  • Characterized for operation from –40° to 85°C

FAST™ is a Trademark of Fairchild Semiconductor.


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Function Type Rating Operating temperature range (C) Package Group
CD74AC280 Order now AC     1.5     5.5     2     5     100     0.08     19.1     75     -75     Parity     Other     Catalog     -55 to 125     PDIP | 14
SOIC | 14    
CD54AC280 Samples not available AC     1.5     5.5     2     5     100     0.08     19.1     75     -75     Parity     Other     Military     -55 to 125     CDIP | 14