Overview
The SN74HC14DE4, produced by Texas Instruments, is a hex inverter with Schmitt-trigger inputs. This device is part of the 74HC series, known for its high-performance CMOS logic. It contains six independent inverters, each with a Schmitt-trigger input, which helps in noise reduction and provides hysteresis to the input signal. This makes the device particularly useful in applications where signal integrity is crucial.
The SN74HC14DE4 operates over a wide voltage range of 2 V to 6 V, making it versatile for various system designs. It is available in a 14-pin SOIC package, which is RoHS compliant and free of Sb/Br, ensuring environmental sustainability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | 5 | 6 | V |
| VI Input Voltage | 0 | - | VCC | V |
| VO Output Voltage | 0 | - | VCC | V |
| TA Operating Free-Air Temperature | -40 | - | 85 | °C |
| ICC Power Consumption | - | - | 20 | μA |
| tpd Propagation Delay | - | 11 | - | ns |
| IOL Output Drive | - | - | ±4 | mA |
| II Input Current | - | - | 1 | μA |
Key Features
- Wide Operating Voltage Range: Operates from 2 V to 6 V, making it suitable for a variety of system designs.
- Schmitt-Trigger Inputs: Provides hysteresis to the input signal, helping in noise reduction and improving signal integrity.
- Low Power Consumption: Maximum ICC of 20 μA, which is beneficial for power-sensitive applications.
- High Output Drive Capability: Can drive up to 10 LSTTL loads and source or sink 4 mA at 5-V VCC.
- Low Input Current: Maximum input leakage current of 1 μA.
- Fast Propagation Delay: Typical propagation delay of 11 ns.
- Environmental Compliance: RoHS compliant and free of Sb/Br.
Applications
- Microwave Ovens: Used in control circuits for microwave ovens.
- Printers: Employed in printer control and interface circuits.
- AC Inverter Drives: Utilized in inverter drive systems for AC motors.
- UPS Systems: Used in uninterruptible power supply systems.
- AC Servo Drives: Applied in servo drive systems for precise motor control.
- Other Motor Drives: Used in various other motor drive applications.
Q & A
- What is the operating voltage range of the SN74HC14DE4?
The SN74HC14DE4 operates over a voltage range of 2 V to 6 V.
- What is the purpose of the Schmitt-trigger inputs in the SN74HC14DE4?
The Schmitt-trigger inputs provide hysteresis to the input signal, helping in noise reduction and improving signal integrity.
- How much power does the SN74HC14DE4 consume?
The maximum power consumption (ICC) of the SN74HC14DE4 is 20 μA.
- What is the typical propagation delay of the SN74HC14DE4?
The typical propagation delay is 11 ns.
- How many LSTTL loads can the SN74HC14DE4 drive?
The SN74HC14DE4 can drive up to 10 LSTTL loads.
- What is the maximum input leakage current of the SN74HC14DE4?
The maximum input leakage current is 1 μA.
- Is the SN74HC14DE4 RoHS compliant?
Yes, the SN74HC14DE4 is RoHS compliant and free of Sb/Br.
- What are some common applications of the SN74HC14DE4?
Common applications include microwave ovens, printers, AC inverter drives, UPS systems, AC servo drives, and other motor drive systems.
- What package type is the SN74HC14DE4 available in?
The SN74HC14DE4 is available in a 14-pin SOIC package.
- What is the operating temperature range of the SN74HC14DE4?
The operating temperature range is from -40°C to 85°C.
