Product Introduction
74HCT4051 is a single pole eight throw analog switch (SP8T) suitable for analog or digital 8:1 multiplexer/demultiplexer applications. The switch function has three digital selection inputs (S0, S1, and S2), eight independent inputs/outputs (Yn), one common input/output (Z), and a digital enable input (E). When E is high, the switch is closed. The input includes a clamping diode. This enables the use of current limiting resistors to connect the input to voltages exceeding VCC.
Product Parameter
Input voltage: 2~10V
Analog input/output terminal: should not exceed 10.0V
Product Funtions
Pin Definition
| 上面引腳 Top pin | 下方引腳 Pin below | ||
| VEE | 負(fù)電源(可保持不連接) Negative power supply (can remain unconnected) | VEE | 負(fù)電源(可保持不連接) Negative power supply (can remain unconnected) |
| VCC | 電源正極 Positive pole of power supply | VCC | 電源正極 Positive pole of power supply |
| GND | 電源負(fù)極 Negative pole of power supply | GND | 接地 Grounding |
| Z | 輸出信號 Output signal | Y0 | 模擬輸入 Analog input |
| S0 | 選擇8個(gè)模擬輸入引腳中的一個(gè)作為最終輸出信號 Select one of the 8 analog input pins as the final output signal | Y1 | |
| S1 | Y2 | ||
| S2 | Y3 | ||
| E | 啟用引腳(低電平有效) Enable pin (low level active) | Y4 | |
| Y5 | |||
| Y6 | |||
| Y7 |
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