CD74HC354 - 具有三态输出的高速 CMOS 逻辑 8 输入多路复用器/寄存器

CD74HC354是TI德州仪器公司的一款解码器/编码器/多路复用器产品，CD74HC354是具有三态输出的高速 CMOS 逻辑 8 输入多路复用器/寄存器，本站介绍了CD74HC354的封装应用图解、特点和优点、功能等，并给出了与CD74HC354相关的TI元器件型号供参考。

CD74HC354 - 具有三态输出的高速 CMOS 逻辑 8 输入多路复用器/寄存器 - 解码器/编码器/多路复用器 - 特殊逻辑 - 德州仪器

产品描述

The CD54HC354, CD74HC354, and CD74HCT354 are data selectors/multiplexers that select one of eight sources. In both types, the data select bits S0, S1 and S2 are stored in transparent latches that are enabled by a low latch enable input, LE\.

In the HC/HCT354 the data enable input, E\, controls transparent latches that pass data to the outputs when E\ is high and latches in new data when E\ is low.

In both types the three-state outputs are controlled by three output-enable inputs OE1\, OE2\, and OE3.

产品特性

HC/HCT354
- Transparent Data and Select Latches
Buffered Inputs
Three-State Complementary Outputs
Bus Line Driving Capability
Typical Propagation Delay: VCC = 5V, CL = 15pF, TA = 25°C
- Data to Output = 18ns
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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