Overview
The SN74HCT14DT, manufactured by Texas Instruments, is a hex Schmitt-trigger inverter integrated circuit. This device contains six independent inverters, each performing the Boolean function Y = A in positive logic. The SN74HCT14DT is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) voltage levels and its ability to operate within a wide voltage range.
The Schmitt-trigger inputs are designed to provide a minimum separation between positive and negative switching thresholds, making the device robust against noisy or slow inputs that could cause oscillation or excessive current draw in standard CMOS inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package | 14-SOIC (0.154", 3.90mm Width) | |
| Logic Type | Inverter | |
| Number of Circuits | 6 | |
| Number of Inputs | 6 | |
| Features | Schmitt Trigger | |
| Voltage - Supply | 4.5 V ~ 5.5 V | V |
| Current - Quiescent (Max) | 2µA | A |
| Current - Output High, Low | 4mA, 4mA | A |
| Logic Level - Low | 0.5 V ~ 0.6 V | V |
| Logic Level - High | 1.9 V ~ 2.1 V | V |
| Max Propagation Delay @ V, Max CL | 30ns @ 5.5V, 50pF | ns |
| Operating Temperature | -40°C ~ 85°C | °C |
| Mounting Type | Surface Mount |
Key Features
- Operating voltage range of 4.5 V to 5.5 V, making it versatile for various systems.
- Outputs can drive up to 10 LSTTL loads each, ensuring robust output capabilities.
- Low power consumption with a maximum ICC of 20 µA.
- Typical propagation delay of 18 ns, with a maximum of 30 ns at 5.5 V and 50 pF load.
- ±4 mA output drive at 5 V, providing balanced drive outputs that can source or sink up to 8 mA.
- Maximum low input current of 1 µA, reducing power consumption and minimizing the impact on the input signal.
- Inputs are TTL-voltage compatible, enhancing compatibility with a wide range of logic systems.
- Schmitt-trigger inputs to handle noisy or slow inputs effectively.
Applications
- Uninterruptible Power Supplies (UPS)
- White Goods
- Computer Peripherals
- Printers
- AC Servo Drives
- Desktop Computers
Q & A
- What is the primary function of the SN74HCT14DT?
The SN74HCT14DT is a hex Schmitt-trigger inverter, performing the Boolean function Y = A in positive logic.
- What is the operating voltage range of the SN74HCT14DT?
The operating voltage range is 4.5 V to 5.5 V.
- How many independent inverters does the SN74HCT14DT contain?
The device contains six independent inverters.
- What is the maximum propagation delay of the SN74HCT14DT?
The maximum propagation delay is 30 ns at 5.5 V and 50 pF load.
- What is the output drive capability of the SN74HCT14DT?
The outputs can drive up to 10 LSTTL loads each and can source or sink up to 8 mA at 5 V.
- What is the operating temperature range of the SN74HCT14DT?
The operating temperature range is -40°C to 85°C.
- Is the SN74HCT14DT compatible with TTL voltage levels?
Yes, the inputs are TTL-voltage compatible.
- What type of inputs does the SN74HCT14DT have?
The device has Schmitt-trigger inputs to handle noisy or slow inputs effectively.
- What is the typical power consumption of the SN74HCT14DT?
The typical power consumption is low, with a maximum ICC of 20 µA.
- In what types of applications is the SN74HCT14DT commonly used?
It is commonly used in UPS, white goods, computer peripherals, printers, AC servo drives, and desktop computers.
- What is the package type of the SN74HCT14DT?
The package type is 14-SOIC (0.154", 3.90mm Width).
