SN74LVC14APWR Detailed explanation of pin function specifications and circuit principle instructions
The part number "SN74LVC14APWR" belongs to Texas Instruments (TI). It is a Hex Inverter with Schmitt-trigger inputs, and it's part of the SN74LVC14 family. It is typically used in digital circuits to invert logic signals and provide noise immunity with its Schmitt-trigger functionality.
Package Information:
The SN74LVC14APWR typically comes in a TSSOP-14 package. The "PWR" suffix in the part number indicates the TSSOP (Thin Shrink Small Outline Package). This is a small, surface-mount package with 14 pins.
Pin Function Specifications and Circuit Principle:
Here’s the pinout and functions for the SN74LVC14APWR in TSSOP-14 package. It has 14 pins, and each pin has a specific function.
Pin Number Pin Name Pin Function 1 1A Input pin 1. The signal to be inverted enters this pin. 2 2Y Output pin 1. The inverted signal from 1A is output here. 3 2A Input pin 2. The signal to be inverted enters this pin. 4 3Y Output pin 2. The inverted signal from 2A is output here. 5 3A Input pin 3. The signal to be inverted enters this pin. 6 4Y Output pin 3. The inverted signal from 3A is output here. 7 4A Input pin 4. The signal to be inverted enters this pin. 8 5Y Output pin 4. The inverted signal from 4A is output here. 9 GND Ground pin. This pin should be connected to the circuit's ground. 10 5A Input pin 5. The signal to be inverted enters this pin. 11 6Y Output pin 5. The inverted signal from 5A is output here. 12 6A Input pin 6. The signal to be inverted enters this pin. 13 7Y Output pin 6. The inverted signal from 6A is output here. 14 VCC Supply voltage pin. This pin should be connected to the positive supply.Circuit Principle:
The SN74LVC14 family is based on the Schmitt trigger inverter circuit. Each input (A) receives a logic signal and the corresponding output (Y) is the inverted signal. The Schmitt trigger functionality provides noise immunity by having different threshold voltages for transitioning from low to high and vice versa, ensuring stable and noise-resistant logic level conversion.FAQ for SN74LVC14APWR:
What is the supply voltage range for SN74LVC14APWR? The supply voltage range is 2.0V to 5.5V. Can I use SN74LVC14APWR in 5V systems? Yes, the SN74LVC14APWR can operate in 5V systems, as it supports 5V logic levels. How does the Schmitt trigger function work in SN74LVC14APWR? The Schmitt trigger inverts the input signal while providing noise immunity. It has hysteresis, meaning it requires a higher voltage to switch from low to high and a lower voltage to switch from high to low. What is the maximum output current for each output pin on SN74LVC14APWR? The maximum output current per pin is 24mA. What is the logic family for SN74LVC14APWR? The SN74LVC14APWR is part of the LVC (Low Voltage CMOS) logic family. Can I use SN74LVC14APWR for high-speed applications? Yes, the SN74LVC14APWR is designed for high-speed digital applications and offers fast switching times. What is the power consumption of SN74LVC14APWR? The power consumption is low due to its CMOS technology, typically consuming around 1µA of input current. Is SN74LVC14APWR suitable for battery-powered circuits? Yes, its low power consumption makes it ideal for battery-powered applications. What is the package type of SN74LVC14APWR? The SN74LVC14APWR comes in the TSSOP-14 package. How do I connect the SN74LVC14APWR to other logic devices? The input pins should receive logic signals, and the output pins should be connected to the next stage in your circuit. Ensure that VCC and GND are properly connected. What is the maximum operating temperature for SN74LVC14APWR? The maximum operating temperature is 125°C. What are the input thresholds for the SN74LVC14APWR? The input high voltage (Vih) is typically 2V, and the input low voltage (Vil) is typically 0.8V for a 5V supply. Can SN74LVC14APWR be used with TTL logic devices? Yes, SN74LVC14APWR is TTL-compatible when operating at 5V. What are the limitations of SN74LVC14APWR? It is limited by the voltage supply range (2.0V to 5.5V) and the current output limit per pin (24mA). Is there a minimum input voltage for SN74LVC14APWR? The minimum input voltage should not go below 0V to avoid damage to the IC. How do I connect SN74LVC14APWR in a chain for multiple inverters? You can cascade multiple SN74LVC14APWR ICs by connecting the output of one IC to the input of the next. Can SN74LVC14APWR operate in both single-supply and dual-supply configurations? SN74LVC14APWR is typically used in single-supply configurations (e.g., 5V or 3.3V systems). What happens if I exceed the maximum voltage rating of SN74LVC14APWR? Exceeding the maximum voltage rating may damage the device permanently. Can I use SN74LVC14APWR in noisy environments? Yes, the Schmitt trigger feature allows SN74LVC14APWR to function reliably in noisy environments. What is the maximum data rate for SN74LVC14APWR? The maximum data rate (transition speed) is typically around 90 MHz.Conclusion:
The SN74LVC14APWR is a versatile logic device suitable for high-speed, noise-immune signal inversion tasks in low voltage systems. Its clear specifications and typical applications in digital circuits make it an excellent choice for signal processing in various consumer electronics and industrial systems.
