CD74HCT280数据手册集成电路（IC）的奇偶校验发生器校验器规格书PDF

描述 Description

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.

特性 Features

• 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)
• CMOS Input Compatibility, Il 1µA at VOL, VOH
Data sheet acquired from Harris Semiconductor