Overview
The SN74HC14DRE4 is a hex inverter integrated circuit produced by Texas Instruments. This device contains six independent inverters with Schmitt-trigger inputs, each performing the Boolean function Y = A in positive logic. The SN74HC14DRE4 is part of the 74HC series, known for its high-speed CMOS logic and wide operating voltage range.
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 |
| Propagation Delay (tpd) at 2 V | 55 | 125 | 155 | ns |
| Propagation Delay (tpd) at 4.5 V | 12 | 25 | 31 | ns |
| Propagation Delay (tpd) at 6 V | 11 | 21 | 26 | ns |
| Transition Time (tt) at 2 V | 38 | 75 | 95 | ns |
| Transition Time (tt) at 4.5 V | 8 | 15 | 19 | ns |
| Transition Time (tt) at 6 V | 6 | 13 | 16 | ns |
| ICC Quiescent Current | - | - | 20 | μA |
| Input Leakage Current | - | - | 1 | μA |
| Output Drive Current at 5 V | - | - | ±4 | mA |
Key Features
- Wide operating voltage range: 2 V to 6 V
- Wide operating temperature range: -40°C to +85°C
- Buffered inputs with Schmitt-trigger characteristics
- Low power consumption: 20-μA Max ICC
- Typical propagation delay: 11 ns at 5 V
- Outputs can drive up to 10 LSTTL loads each
- Low input current: 1 μA Max
- Balanced drive outputs can source or sink 4 mA at 5-V VCC
Applications
- Synchronize inverted clock inputs
- Debounce a switch
- Invert a digital signal
- Microwave oven control circuits
- Printers and other office equipment
- AC inverter drives and UPS systems
- AC servo drives and other motor drives
Q & A
- What is the SN74HC14DRE4?
The SN74HC14DRE4 is a hex inverter integrated circuit with Schmitt-trigger inputs, produced by Texas Instruments.
- What is the operating voltage range of the SN74HC14DRE4?
The operating voltage range is from 2 V to 6 V.
- What is the typical propagation delay of the SN74HC14DRE4 at 5 V?
The typical propagation delay is 11 ns at 5 V.
- How many LSTTL loads can each output drive?
Each output can drive up to 10 LSTTL loads.
- What is the maximum quiescent current (ICC) of the SN74HC14DRE4?
The maximum quiescent current (ICC) is 20 μA.
- What are some common applications of the SN74HC14DRE4?
Common applications include synchronizing inverted clock inputs, debouncing switches, inverting digital signals, and use in microwave ovens, printers, AC inverter drives, UPS systems, and motor drives.
- What is the operating temperature range of the SN74HC14DRE4?
The operating temperature range is from -40°C to +85°C.
- What is the input leakage current of the SN74HC14DRE4?
The input leakage current is 1 μA Max.
- Can the SN74HC14DRE4 be used in safety-critical applications?
No, it is recommended to validate and test the design implementation to confirm system functionality, especially in safety-critical applications.
- What are the package options available for the SN74HC14DRE4?
The SN74HC14DRE4 is available in SOIC (14-pin) package among others.
