The HC280 and HCT280 are 9-bit odd/even parity, generator checker devices. 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 HC/HCT280 parity checker.
Typical Propagation Delay = 17ns at VCC = 5V, CL = 15pF, TA = 25°C
Replaces LS180 Types
Easily Cascadable
Fanout (Over Temperature Range)
Standard Outputs...10 LSTTL Loads
Bus Driver Outputs...15 LSTTL Loads
Wide Operating Temperature Range... 55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
2V to 6V Operation
High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
HCT Types
4.5V to 5.5V Operation
Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
