Overview
The SN74HC14NS is a hex inverter with Schmitt-trigger inputs produced by Texas Instruments. This device contains six independent inverters, each performing the Boolean function Y = A in positive logic. The SN74HC14NS is part of the 74HC series, known for its high-speed CMOS logic and wide operating voltage range, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2 V to 6 V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Propagation Delay (typical at 5 V) | 11 ns | ns |
| Transition Time (typical at 5 V) | 6 ns to 13 ns | ns |
| Output Drive Capability | ±4 mA at 5 V | mA |
| Input Leakage Current (max) | 1 μA | μA |
| Power Consumption (max ICC) | 20 μA | μA |
| Package Type | SO (14 pins) | - |
| Package Dimensions | 10.20 mm x 5.30 mm | mm |
Key Features
- Buffered inputs with Schmitt-trigger characteristics for noise immunity and hysteresis.
- Wide operating voltage range: 2 V to 6 V.
- Wide operating temperature range: -40°C to +85°C.
- Supports fanout up to 10 LSTTL loads.
- Significant power reduction compared to LSTTL logic ICs.
- Low power consumption, with a maximum ICC of 20 μA.
- Typical propagation delay of 11 ns at 5 V.
- Balanced CMOS push-pull outputs capable of sourcing or sinking 4 mA at 5 V.
Applications
- Synchronize inverted clock inputs.
- Debounce switches.
- Invert digital signals.
- Microwave ovens.
- Printers.
- AC inverter drives.
- UPS (Uninterruptible Power Supplies).
- AC servo drives and other motor drives.
Q & A
- What is the primary function of the SN74HC14NS?
The SN74HC14NS contains six independent inverters with Schmitt-trigger inputs, each performing the Boolean function Y = A in positive logic.
- What is the operating voltage range of the SN74HC14NS?
The operating voltage range is from 2 V to 6 V.
- What is the typical propagation delay of the SN74HC14NS at 5 V?
The typical propagation delay is 11 ns at 5 V.
- How many LSTTL loads can the SN74HC14NS drive?
The device can drive up to 10 LSTTL loads.
- What is the maximum power consumption of the SN74HC14NS?
The maximum power consumption (ICC) is 20 μA.
- What are the typical applications of the SN74HC14NS?
Typical applications include synchronizing inverted clock inputs, debouncing switches, inverting digital signals, and use in microwave ovens, printers, AC inverter drives, UPS, and AC servo drives.
- What is the significance of Schmitt-trigger inputs in the SN74HC14NS?
Schmitt-trigger inputs provide noise immunity and hysteresis, which helps in stabilizing the output against noise and oscillations.
- What is the package type and dimensions of the SN74HC14NS?
The package type is SO (14 pins) with dimensions of 10.20 mm x 5.30 mm.
- What is the operating temperature range of the SN74HC14NS?
The operating temperature range is from -40°C to +85°C.
- Can the SN74HC14NS be used in safety-critical applications?
Users should carefully evaluate and test the device to ensure its suitability for safety-critical applications, as indicated in the datasheet.
