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What is the function of an enable input on a multiplexer chip?
- a)To apply Vcc
- b)To connect ground
- c)To active the entire chip
- d)To active one half of the chip
Correct answer is option 'C'. Can you explain this answer?
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What is the function of an enable input on a multiplexer chip?a)To app...
The function of an enable input on a multiplexer chip is to activate or deactivate the entire chip. When the enable input is high (or active), the multiplexer chip is enabled and can perform its intended function. On the other hand, when the enable input is low (or inactive), the multiplexer chip is disabled and its outputs are in a high-impedance state.
When the enable input is active, the multiplexer chip acts as a data selector, allowing one of multiple inputs to be selected and routed to the output. The selection of the input is determined by the control inputs of the chip.
Below is a detailed explanation of the function of the enable input on a multiplexer chip:
1. Multiplexer Basics:
- A multiplexer, also known as a data selector, is a digital circuit that selects one of many inputs and routes it to a single output.
- It is commonly represented by the symbol ⊕ or MUX.
2. Enable Input:
- The enable input on a multiplexer chip is denoted as EN or E, and it controls the activation of the chip.
- The enable input is typically an active-high input, meaning that when it is high (logic 1), the chip is enabled.
3. Chip Activation:
- When the enable input is active (high), the multiplexer chip is enabled and can perform its function.
- The chip becomes operational, and its outputs are determined by the control inputs and the selected input.
- The selected input is determined by the control inputs, such as address lines or select inputs.
4. Chip Deactivation:
- When the enable input is inactive (low), the multiplexer chip is disabled.
- The chip enters a high-impedance state, which means that its outputs are effectively disconnected and do not drive any signal.
- This high-impedance state prevents any interference or conflicts with other circuitry that may be connected to the outputs of the disabled chip.
5. Usefulness of Enable Input:
- The enable input is useful in applications where the activation or deactivation of the multiplexer chip needs to be controlled.
- It allows for greater flexibility in circuit design by providing the ability to enable or disable the chip as needed.
In summary, the enable input on a multiplexer chip is responsible for activating or deactivating the entire chip. When the enable input is high, the chip is enabled and can perform its function of selecting and routing one of multiple inputs to the output. When the enable input is low, the chip is disabled, and its outputs are in a high-impedance state.
When the enable input is active, the multiplexer chip acts as a data selector, allowing one of multiple inputs to be selected and routed to the output. The selection of the input is determined by the control inputs of the chip.
Below is a detailed explanation of the function of the enable input on a multiplexer chip:
1. Multiplexer Basics:
- A multiplexer, also known as a data selector, is a digital circuit that selects one of many inputs and routes it to a single output.
- It is commonly represented by the symbol ⊕ or MUX.
2. Enable Input:
- The enable input on a multiplexer chip is denoted as EN or E, and it controls the activation of the chip.
- The enable input is typically an active-high input, meaning that when it is high (logic 1), the chip is enabled.
3. Chip Activation:
- When the enable input is active (high), the multiplexer chip is enabled and can perform its function.
- The chip becomes operational, and its outputs are determined by the control inputs and the selected input.
- The selected input is determined by the control inputs, such as address lines or select inputs.
4. Chip Deactivation:
- When the enable input is inactive (low), the multiplexer chip is disabled.
- The chip enters a high-impedance state, which means that its outputs are effectively disconnected and do not drive any signal.
- This high-impedance state prevents any interference or conflicts with other circuitry that may be connected to the outputs of the disabled chip.
5. Usefulness of Enable Input:
- The enable input is useful in applications where the activation or deactivation of the multiplexer chip needs to be controlled.
- It allows for greater flexibility in circuit design by providing the ability to enable or disable the chip as needed.
In summary, the enable input on a multiplexer chip is responsible for activating or deactivating the entire chip. When the enable input is high, the chip is enabled and can perform its function of selecting and routing one of multiple inputs to the output. When the enable input is low, the chip is disabled, and its outputs are in a high-impedance state.
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What is the function of an enable input on a multiplexer chip?a)To app...
Enable input is used to active the chip, when enable is high the chip works (ACTIVE), when enable is low the chip does not work (MEMORY). However, Enable can be Active-High or Active-Low, indicating it is active either when it is connected to VCC or GND respectively.
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