CD74HCT42 - 高速 CMOS 逻辑 10 选 1 BCD 至十进制解码器

CD74HCT42是TI德州仪器公司的一款解码器/编码器/多路复用器产品，CD74HCT42是高速 CMOS 逻辑 10 选 1 BCD 至十进制解码器，本站介绍了CD74HCT42的封装应用图解、特点和优点、功能等，并给出了与CD74HCT42相关的TI元器件型号供参考。

CD74HCT42 - 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 - 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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