Overview
The CD74HC14PWR is a high-speed CMOS logic hex inverting Schmitt trigger integrated circuit produced by Texas Instruments. This device contains six independent inverters, each with Schmitt-trigger inputs, and performs the Boolean function Y = A in positive logic. It is available in a 14-pin TSSOP (PW) package, making it suitable for a wide range of digital logic applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | TSSOP (PW) | - |
| Pins | 14 | - |
| Operating Temperature Range | -55 to 125 | °C |
| Supply Voltage (VCC) | 2 to 6 | V |
| Input Clamp Current (IIK) | ±20 | mA |
| Output Clamp Current (IOK) | ±20 | mA |
| Junction-to-Ambient Thermal Resistance (RθJA) | 151.7 | °C/W |
| Input Leakage Current (II) | ±0.1 to ±1 | µA |
| Supply Current (ICC) | 2 to 40 | µA |
| Input Capacitance (Ci) | 10 | pF |
Key Features
- Buffered Inputs: The device has buffered inputs which help in stabilizing the input signals.
- Wide Operating Voltage Range: It operates over a wide voltage range of 2 V to 6 V.
- Wide Operating Temperature Range: The device can operate in temperatures ranging from -55°C to +125°C.
- High Fanout Capability: It supports fanout up to 10 LSTTL loads.
- Power Reduction: Significant power reduction compared to LSTTL logic ICs.
- Schmitt-Trigger Inputs: The inputs are equipped with Schmitt triggers, which help in rejecting noise and providing hysteresis.
- Balanced CMOS Push-Pull Outputs: The outputs are capable of sinking and sourcing similar currents, ensuring balanced operation.
Applications
- Synchronize Inverted Clock Inputs: The CD74HC14PWR can be used to synchronize inverted clock signals in digital circuits.
- Debounce a Switch: The Schmitt-trigger inputs are useful for debouncing switch inputs to eliminate noise.
- Invert Digital Signals: It can be used to invert digital signals in various logic circuits.
Q & A
- What is the CD74HC14PWR?
The CD74HC14PWR is a high-speed CMOS logic hex inverting Schmitt trigger integrated circuit produced by Texas Instruments.
- What package type is the CD74HC14PWR available in?
The CD74HC14PWR is available in a 14-pin TSSOP (PW) package.
- What is the operating temperature range of the CD74HC14PWR?
The device operates in temperatures ranging from -55°C to +125°C.
- What is the supply voltage range for the CD74HC14PWR?
The supply voltage range is from 2 V to 6 V.
- What is the significance of Schmitt-trigger inputs in the CD74HC14PWR?
Schmitt-trigger inputs help in rejecting noise and provide hysteresis, ensuring stable logic levels.
- How many independent inverters does the CD74HC14PWR contain?
The device contains six independent inverters.
- What is the fanout capability of the CD74HC14PWR?
The device supports fanout up to 10 LSTTL loads.
- How does the CD74HC14PWR compare to LSTTL logic ICs in terms of power consumption?
The CD74HC14PWR offers significant power reduction compared to LSTTL logic ICs.
- What are some common applications of the CD74HC14PWR?
Common applications include synchronizing inverted clock inputs, debouncing switches, and inverting digital signals.
- What are the thermal considerations for the CD74HC14PWR?
The device has a junction-to-ambient thermal resistance (RθJA) of 151.7 °C/W, and it is important to follow the thermal limits defined in the datasheet to prevent damage.
