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CD74HC42技术文档下载：
CD74HC42 - 产品图解：
CD74HC42 - 高速 CMOS 逻辑 10 选 1 BCD 至十进制解码器
CD74HC42是TI公司的一款解码器/编码器/多路复用器产品，CD74HC42是高速 CMOS 逻辑 10 选 1 BCD 至十进制解码器，本页介绍了CD74HC42的产品说明、应用、特性等，并给出了与CD74HC42相关的TI元器件型号供参考。
CD74HC42 - 高速 CMOS 逻辑 10 选 1 BCD 至十进制解码器 - 解码器/编码器/多路复用器 - 特殊逻辑 - TI公司（Texas Instruments，德州仪器）
产品描述
The ’HC42 and CD74HCT42 BCD-to-Decimal Decoders utilize silicon-gate CMOS technology to achieve operating speeds similar to LSTTL decoders with the low power consumption of standard CMOS integrated circuits. These devices have the capability of driving 10 LSTLL loads and are compatible with the standard LS logic family. One of ten outputs (low on select) is selected in accordance with the BCD input. Non-valid BCD inputs result in none of the outputs being selected (all outputs are high).
产品特性
- Buffered Inputs and Outputs
- Typical Propagation Delay: 12ns at VCC = 5V, CL = 15pF, TA = 25°C
- 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
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