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)
  • CMOS Input Compatibility, Il 1A at VOL, VOH

Data sheet acquired from Harris Semiconductor

• Number of channels (#)
• 2
• Technology Family
• HC
• Input type
• Standard CMOS
• Output type
• Push-Pull
• Features
• Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode

CD74HC280的完整型号有：CD74HC280E、CD74HC280M96、CD74HC280MT，以下是这些产品的关键参数及官网采购报价：

CD74HC280E，工作温度：-55 to 125，封装：PDIP (N)-14，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网CD74HC280E的批量USD价格：.32（1000+）

CD74HC280M96，工作温度：-55 to 125，封装：SOIC (D)-14，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD74HC280M96的批量USD价格：.282（1000+）

CD74HC280MT，工作温度：-55 to 125，封装：SOIC (D)-14，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网CD74HC280MT的批量USD价格：.333（1000+）

14-24-LOGIC-EVM 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。