Overview
The SN74ACT14D, manufactured by Texas Instruments, is a high-performance hex Schmitt-trigger inverter belonging to the 74ACT series. This integrated circuit is designed for use in digital logic applications where signal conditioning and noise immunity are critical. It features six independent inverters with Schmitt-trigger inputs, making it ideal for applications requiring precise signal thresholds and clean output transitions. The device operates within a voltage range of 4.5V to 5.5V, making it compatible with TTL logic levels. Its compact 14-SOIC package and surface-mount design cater to modern PCB assembly processes, targeting industries such as industrial automation, consumer electronics, and automotive systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Inverter, Schmitt-trigger | - | Six independent inverters |
| Supply Voltage | 4.5 to 5.5 | V | TTL compatible |
| Static Current (max) | 2 | µA | Low power consumption |
| Output Current (High/Low) | 24/24 | mA | High drive capability |
| Logic Level Low | 0.5 to 0.6 | V | Schmitt-trigger input |
| Logic Level High | 1.9 to 2.1 | V | Schmitt-trigger input |
| Propagation Delay (max) | 11.5 | ns | @ 5V, 50pF |
| Operating Temperature | -40 to 85 | °C | Wide temperature range |
| Package | 14-SOIC | - | Surface-mount |
| Mounting Type | SMD/SMT | - | Modern PCB assembly |
Key Features
- Hex Schmitt-trigger inverters for precise signal conditioning.
- Wide supply voltage range (4.5V to 5.5V) ensures compatibility with TTL logic.
- High output current capability (24mA) for driving multiple loads.
- Low static current consumption (2µA max) enhances energy efficiency.
- Schmitt-trigger inputs provide noise immunity and clean output transitions.
- Compact 14-SOIC package suitable for space-constrained designs.
- Wide operating temperature range (-40°C to 85°C) for robust performance in harsh environments.
Applications
The SN74ACT14D is widely used in applications requiring signal conditioning and noise immunity. Its Schmitt-trigger inputs make it suitable for debouncing switches, shaping waveforms, and filtering noisy signals. Common applications include industrial automation systems, where it ensures reliable signal processing in noisy environments. In consumer electronics, it is used in devices such as gaming consoles and home appliances to improve signal integrity. Automotive systems benefit from its robust performance in temperature extremes, particularly in engine control units and infotainment systems. Additionally, it is employed in communication equipment for signal conditioning and level shifting.
Q & A
1. What is the operating voltage range of the SN74ACT14D?
The SN74ACT14D operates within a voltage range of 4.5V to 5.5V.
2. How many inverters are included in the SN74ACT14D?
It includes six independent Schmitt-trigger inverters.
3. What is the maximum propagation delay of the SN74ACT14D?
The maximum propagation delay is 11.5ns at 5V with a 50pF load.
4. Is the SN74ACT14D compatible with TTL logic levels?
Yes, it is fully compatible with TTL logic levels.
5. What is the output current capability of the SN74ACT14D?
It can source or sink up to 24mA of current.
6. What is the purpose of the Schmitt-trigger inputs?
Schmitt-trigger inputs provide noise immunity and ensure clean output transitions.
7. What is the package type of the SN74ACT14D?
It is available in a 14-SOIC surface-mount package.
8. What is the operating temperature range of the SN74ACT14D?
It operates reliably from -40°C to 85°C.
9. Can the SN74ACT14D be used in automotive applications?
Yes, its robust performance makes it suitable for automotive systems.
10. What is the static current consumption of the SN74ACT14D?
The maximum static current consumption is 2µA.
