Overview
The SN74HCT14D, manufactured by Texas Instruments, is a hex inverter with Schmitt-trigger inputs. This integrated circuit contains six independent inverters, each performing the Boolean function Y = A in positive logic. The device is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) voltage levels and its low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 14-SOIC (0.154", 3.90mm Width) |
| Operating Temperature Range | -40°C to 85°C |
| Operating Voltage Range | 4.5 V to 5.5 V |
| Output Drive | ±4 mA at 5 V |
| Maximum Low Input Current | 1 µA |
| Quiescent Current (Max) | 20 µA |
| Propagation Delay (Max) | 30 ns at 5.5 V, 50 pF |
| Logic Type | Inverter with Schmitt Trigger |
| Number of Circuits | 6 |
| Number of Inputs | 6 |
| Mounting Type | Surface Mount |
Key Features
- Operating voltage range of 4.5 V to 5.5 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption: 20-µA maximum ICC
- Typical propagation delay 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 noise immunity
Applications
The SN74HCT14D is suitable for a variety of applications where noise immunity and low power consumption are critical. These include:
- Digital logic circuits requiring Schmitt-trigger inputs for noise reduction
- Low-power digital systems such as battery-operated devices
- TTL-compatible systems needing inverter functions
- Automotive and industrial control systems where robustness against noise is essential
Q & A
- What is the operating voltage range of the SN74HCT14D?
The operating voltage range of the SN74HCT14D is 4.5 V to 5.5 V.
- How many independent inverters does the SN74HCT14D contain?
The SN74HCT14D contains six independent inverters.
- What is the typical propagation delay of the SN74HCT14D?
The typical propagation delay is 18 ns, with a maximum of 30 ns at 5.5 V and 50 pF load.
- What is the output drive capability of the SN74HCT14D?
The outputs can drive up to ±4 mA at 5 V and can handle up to 10 LSTTL loads.
- Is the SN74HCT14D compatible with TTL voltage levels?
- What is the maximum low input current of the SN74HCT14D?
The maximum low input current is 1 µA.
- What is the quiescent current of the SN74HCT14D?
The quiescent current is a maximum of 20 µA.
- What is the operating temperature range of the SN74HCT14D?
The operating temperature range is -40°C to 85°C.
- What type of inputs does the SN74HCT14D have?
The SN74HCT14D has Schmitt-trigger inputs for improved noise immunity.
- What is the package type of the SN74HCT14D?
The SN74HCT14D is available in a 14-SOIC package).
