Overview
The SN74HCT14DG4 is a Hex Schmitt-Trigger Inverter produced by Texas Instruments. This device contains six independent inverters that perform the Boolean function Y = A in positive logic. The Schmitt-Trigger inputs are designed to provide a minimum separation between positive and negative switching thresholds, making them suitable for handling noisy or slow inputs that could cause issues with normal CMOS inputs.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 4.5 V to 5.5 V |
| Output Drive Capability | Up to 10 LSTTL loads |
| Output Drive Current | ±4 mA at 5 V |
| Input Current | Maximum 1 µA |
| Propagation Delay (tpd) | Typical 18 ns |
| Power Consumption (ICC) | Maximum 20 µA |
| Operating Temperature Range | -40 °C to 85 °C |
| Package Types | SOIC-14, TVSOP-14, TSSOP-14, PDIP-14, etc. |
Key Features
- Operating voltage range of 4.5 V to 5.5 V
- Outputs can drive up to 10 LSTTL loads each
- Low power consumption: maximum ICC of 20 µA
- Typical propagation delay (tpd) of 18 ns
- ±4-mA output drive at 5 V
- Maximum low input current of 1 µA
- Inputs are TTL-voltage compatible
- Schmitt-Trigger inputs for handling noisy or slow inputs
Applications
- Uninterruptible Power Supplies (UPS)
- White Goods
- Computer Peripherals
- Printers
- AC Servo Drives
- Desktop Computers
Q & A
- What is the operating voltage range of the SN74HCT14DG4? The operating voltage range is 4.5 V to 5.5 V.
- How many independent inverters does the SN74HCT14DG4 contain? It contains six independent inverters.
- What is the typical propagation delay of the SN74HCT14DG4? The typical propagation delay is 18 ns.
- What is the maximum output drive current of the SN74HCT14DG4 at 5 V? The maximum output drive current is ±4 mA at 5 V.
- What are the typical applications of the SN74HCT14DG4? Typical applications include UPS, white goods, computer peripherals, printers, AC servo drives, and desktop computers.
- What is the operating temperature range of the SN74HCT14DG4? The operating temperature range is -40 °C to 85 °C.
- Why are Schmitt-Trigger inputs useful in the SN74HCT14DG4? Schmitt-Trigger inputs are useful for handling noisy or slow inputs that could cause issues such as oscillation or excessive current draw with normal CMOS inputs.
- What package types are available for the SN74HCT14DG4? Available package types include SOIC-14, TVSOP-14, TSSOP-14, PDIP-14, and others.
- How much power does the SN74HCT14DG4 consume? The maximum power consumption (ICC) is 20 µA.
- Are the inputs of the SN74HCT14DG4 TTL-voltage compatible? Yes, the inputs are TTL-voltage compatible.
