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CD74HCT280技术文档下载：
CD74HCT280 - 产品图解：
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CD74HCT280 - 高速 CMOS 逻辑 9 位奇偶校验发生器/校验器
CD74HCT280是TI公司的一款计数器/算术/奇偶校验功能产品，CD74HCT280是高速 CMOS 逻辑 9 位奇偶校验发生器/校验器，本页介绍了CD74HCT280的产品说明、应用、特性等，并给出了与CD74HCT280相关的TI元器件型号供参考。
CD74HCT280 - 高速 CMOS 逻辑 9 位奇偶校验发生器/校验器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - TI公司（Texas Instruments，德州仪器）
产品描述
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.
产品特性
- 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
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