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Name: SN74HC132DT
Brand: Texas Instruments
SKU: SN74HC132DT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments SN74HC132DT

Part No.:: SN74HC132DT

Manufacturer:: Texas Instruments

Package:: 14-SOIC

Datasheet:: SN74HC132DT.pdf

Description:: IC GATE NAND 4CH 2-INP 14SOIC

In Stock:: 3391

Quantity:: Add To Cart

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SN74HC132DT Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
74HC
ProductStatus:
Active
LogicType:
NAND Gate
NumberofCircuits:
4
NumberofInputs:
2
Features:
Schmitt Trigger
Voltage-Supply:
2V ~ 6V
Current-Quiescent(Max):
2 µA
Current-OutputHighLow:
5.2mA, 5.2mA
LogicLevel-Low:
0.3V ~ 1.2V
LogicLevel-High:
1.5V ~ 4.2V
MaxPropagationDelay@VMaxCL:
21ns @ 6V, 50pF
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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SN74HC132DT information

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SN74HC132DT Typical application Circuitry

SN74HC132DT

The SN74HC132DT is a quad 2-input NAND gate with Schmitt-trigger inputs. This integrated circuit is engineered to handle signals that are susceptible to noise or have slow transition times, making it highly suitable for debouncing inputs, creating stable oscillators, and signal conditioning in digital circuits.

Core Functionality

The SN74HC132DT comprises four independent 2-input NAND gates, each equipped with Schmitt-trigger action on the inputs. This design is particularly beneficial for converting noisy or erratic input signals into clean, stable output signals, which is crucial in digital circuits that demand precise timing and signal clarity.

Application Scenarios

The SN74HC132DT is commonly utilized in environments requiring robust noise immunity. Typical applications include debouncing mechanical switches, forming stable oscillatory circuits, and cleaning up noisy digital signals.

Characteristic Parameters

- Supply Voltage (Vcc): Typically operates between 2V and 6V.

- Input High Voltage (VIH): Generally above 2V for a logical '1'.

- Input Low Voltage (VIL): Normally below 0.8V for a logical '0'.

- Output Current (IO): Capable of sourcing or sinking up to 6 mA.

- Hysteresis Voltage (Vh): Provides a range of input voltage levels for noise immunity and stable switching.

Circuit Integration: Debouncing a Mechanical Switch

In this application, the SN74HC132DT is employed to debounce a mechanical switch, ensuring that the signal received by a microcontroller or other digital logic circuits is clean and free from noise.

1. Stable Power Supply Connection

- Vcc (Pin 14): Connect this pin to a +5V power supply.

- Ground (Pin 7): This pin should be connected to the system ground for stability.

2. Switch Input Configuration

- Input A (Pins 1, 5, 9, 12): Connect these pins to one terminal of the mechanical switches. For circuits using fewer than four switches, ensure that unused inputs are tied to a definite state (Vcc or Ground).

- Input B (Pins 2, 6, 10, 13): Tie these pins to Vcc to configure the gates as inverters with Schmitt-trigger action.

3. Output Connection

- Output Y (Pins 3, 4, 8, 11): Connect these pins to the input pins of the subsequent device (such as a microcontroller) that will process the switch state.

Design Considerations

When designing circuits with the SN74HC132DT, it's crucial to consider the following:

1. Power Supply Integrity: Ensure a noise-free, stable power supply to prevent gate malfunctioning.

2. Input Signal Conditioning: While the Schmitt-trigger inputs provide inherent noise immunity, extremely noisy environments might still require additional filtering.

3. Output Load Considerations: Be mindful of the load connected to the outputs, ensuring it aligns with the chip's driving capabilities.

4. Environmental Factors: Consider environmental factors, such as temperature extremes or electromagnetic interference, that might affect performance, especially if the circuit is used in harsh conditions.

In summary, the SN74HC132DT is an invaluable component in digital systems where signal integrity is a top priority. Its application in debouncing a mechanical switch exemplifies its ability to transform noisy, unstable inputs into clean, stable outputs. A thorough approach to power supply, input signal conditioning, and output load management is crucial in harnessing the full potential of the SN74HC132DT, making it a robust and versatile choice in digital circuit design. Whether for debouncing, signal conditioning, or wave shaping, the SN74HC132DT proves to be an indispensable tool in achieving clean and stable digital logic operations.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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