SN74LV14APWE4

Product Overview

• Category: Integrated Circuit
• Use: Inverting Schmitt Trigger
• Characteristics:
  • Low-voltage operation
  • High-speed performance
  • Wide operating temperature range
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic Gate IC
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 6 ns (typical)
• Output Current: ±8 mA
• Number of Pins: 14

Pin Configuration

The SN74LV14APWE4 has a total of 14 pins arranged as follows:

__ __ 1 | 1 \/ 14 | VCC 2 | 2 13 | A 3 | 3 12 | Y 4 | 4 11 | B 5 | 5 10 | GND 6 | 6 9 | C 7 | 7 8 | Y ----------

Functional Features

• Inverting Schmitt Trigger: Converts slowly changing input signals into sharply defined digital output signals.
• Hysteresis: Provides noise immunity by introducing a positive feedback loop that prevents false triggering due to noise or signal fluctuations.
• Wide Operating Voltage Range: Can operate at low voltages (down to 1.65V) and higher voltages (up to 5.5V).
• High-Speed Performance: Offers fast propagation delay time for quick response in digital circuits.

Advantages

• Noise Immunity: The Schmitt Trigger input helps in reducing the impact of noise on the output signal.
• Versatility: Can be used in a wide range of applications due to its low-voltage operation and high-speed performance.
• Compact Package: The TSSOP package allows for space-efficient integration into electronic devices.
• Wide Operating Temperature Range: Suitable for use in various environments.

Disadvantages

• Limited Output Current: The SN74LV14APWE4 has a maximum output current of ±8 mA, which may not be sufficient for certain applications requiring higher current levels.
• Single Functionality: It is designed specifically as an inverting Schmitt trigger and may not be suitable for other logic gate functions.

Working Principles

The SN74LV14APWE4 operates based on the principles of a Schmitt Trigger. It uses positive feedback to create hysteresis, which ensures that the output switches at different voltage levels for rising and falling input signals. This hysteresis helps in reducing the impact of noise and provides a stable digital output.

Detailed Application Field Plans

The SN74LV14APWE4 can be used in various applications, including:

1. Signal Conditioning: It can be used to clean up noisy signals by converting them into well-defined digital signals.
2. Oscillators: By connecting the output of the Schmitt Trigger to an RC network, it can be used to generate square wave oscillations.
3. Level Shifting: It can be employed to shift the logic levels of signals from one voltage domain to another.

Detailed and Complete Alternative Models

Some alternative models to the SN74LV14APWE4 include:

1. CD40106BE: Hex Schmitt Trigger IC with similar functionality but different pin configuration.
2. 74HC14N: High-Speed CMOS Logic IC with Schmitt Trigger inputs, compatible with a wide range of voltages.
3. SN74LS14N: Schmitt Trigger Inverter IC with TTL logic levels, suitable for interfacing with older TTL-based systems.

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

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