Overview
The 74HCT4051PW is a single-pole octal-throw analog switch (SP8T) designed for use in analog or digital 8:1 multiplexer/demultiplexer applications. This component is part of the 74HC/74HCT family and is manufactured by Nexperia. It features three digital select inputs (S0, S1, and S2), eight independent inputs/outputs (Yn), a common input/output (Z), and a digital enable input (E). When the enable input (E) is HIGH, the switches are turned off. The device includes clamp diodes on the inputs, allowing the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Key Specifications
| Type number | Configuration | VCC (V) | Logic switching levels | RON (Ω) | RON(FLAT) (Ω) | f (-3dB) (MHz) | THD (%) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT4051PW | SP8T-Z | 4.5 - 5.5 | TTL | 225 | 20 | 170 | 0.04 | very low | -40~125 | 119 | 3.2 | 47.8 | TSSOP16 |
Key Features
- Single-pole octal-throw analog switch (SP8T) suitable for 8:1 multiplexer/demultiplexer applications.
- Three digital select inputs (S0, S1, and S2) and a digital enable input (E).
- Eight independent inputs/outputs (Yn) and a common input/output (Z).
- Clamp diodes on the inputs to protect against high voltages.
- Low on-state resistance (RON) of 225 Ω.
- Low total harmonic distortion (THD) of 0.04%.
- Wide operating temperature range from -40°C to 125°C.
- TSSOP16 package for compact design.
Applications
- Analog and digital multiplexer/demultiplexer circuits.
- Signal routing and switching in various electronic systems.
- Data acquisition and processing systems.
- AUDIO and video signal switching.
- Industrial control systems requiring analog or digital signal switching.
Q & A
- What is the primary function of the 74HCT4051PW?
The 74HCT4051PW is a single-pole octal-throw analog switch (SP8T) used for analog or digital 8:1 multiplexer/demultiplexer applications.
- What are the logic switching levels for the 74HCT4051PW?
The logic switching levels for the 74HCT4051PW are TTL (Transistor-Transistor Logic).
- What is the on-state resistance (RON) of the 74HCT4051PW?
The on-state resistance (RON) is 225 Ω.
- What is the operating temperature range for the 74HCT4051PW?
The operating temperature range is from -40°C to 125°C.
- What package type is the 74HCT4051PW available in?
The 74HCT4051PW is available in a TSSOP16 package.
- Does the 74HCT4051PW have any protective features for high voltage inputs?
Yes, it includes clamp diodes on the inputs to protect against high voltages.
- What is the total harmonic distortion (THD) of the 74HCT4051PW?
The total harmonic distortion (THD) is 0.04%.
- Can the 74HCT4051PW be used in both analog and digital applications?
Yes, it can be used in both analog and digital 8:1 multiplexer/demultiplexer applications.
- How many digital select inputs does the 74HCT4051PW have?
The 74HCT4051PW has three digital select inputs (S0, S1, and S2).
- What is the purpose of the digital enable input (E) on the 74HCT4051PW?
The digital enable input (E) turns off the switches when it is HIGH.
