Overview
The Texas Instruments SN74HC14ANSR is a hex inverter integrated circuit with Schmitt-trigger inputs. This device contains six independent inverters, each performing the Boolean function Y = A in positive logic. It is part of the HC logic family, known for its wide operating voltage range and low power consumption. The SN74HC14ANSR is available in a 14-pin SOIC package, making it suitable for a variety of digital logic applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Brand | Texas Instruments | |
| Logic Function | Inverter | |
| Input Type | Schmitt Trigger | |
| Number of Elements per Chip | 6 | |
| Maximum Propagation Delay Time @ Maximum CL | 125 ns @ 2 V, 21 ns @ 6 V, 25 ns @ 4.5 V | ns |
| Maximum High Level Output Current | -5.2 mA | mA |
| Maximum Low Level Output Current | 5.2 mA | mA |
| Mounting Type | Surface Mount | |
| Package Type | SOIC (14) | |
| Pin Count | 14 | |
| Logic Family | HC | |
| Minimum Operating Supply Voltage | 2 V | V |
| Maximum Operating Supply Voltage | 6 V | V |
| Minimum Operating Temperature | -40 °C | °C |
| Maximum Operating Temperature | +85 °C | °C |
| Dimensions | 8.70 mm × 3.90 mm | mm |
Key Features
- Buffered Inputs: The device features buffered inputs which help in stabilizing the input signals.
- Wide Operating Voltage Range: Operates over a wide voltage range from 2 V to 6 V.
- Wide Operating Temperature Range: Functional from -40°C to +85°C.
- Low Power Consumption: Significant power reduction compared to LSTTL logic ICs.
- High Fanout Capability: Supports fanout up to 10 LSTTL loads.
- Schmitt-Trigger Inputs: Rejects noise and provides hysteresis, making it suitable for noisy environments.
- Balanced CMOS Push-Pull Outputs: Capable of sinking and sourcing similar currents, ensuring balanced output.
Applications
- Synchronizing Inverted Clock Inputs: Useful in synchronizing clock signals to ensure proper timing in digital circuits.
- Debouncing Switches: Helps in debouncing mechanical switches by filtering out noise and providing a stable output.
- Inverting Digital Signals: Can be used to invert digital signals in various logic circuits.
Q & A
- What is the primary function of the SN74HC14ANSR?
The primary function of the SN74HC14ANSR is to act as a hex inverter with Schmitt-trigger inputs, performing the Boolean function Y = A in positive logic.
- What is the operating voltage range of the SN74HC14ANSR?
The device operates over a voltage range from 2 V to 6 V.
- What is the significance of Schmitt-trigger inputs in the SN74HC14ANSR?
Schmitt-trigger inputs provide hysteresis, which helps in rejecting noise and stabilizing the input signals.
- What is the maximum propagation delay time of the SN74HC14ANSR?
The maximum propagation delay time is 125 ns at 2 V, 21 ns at 6 V, and 25 ns at 4.5 V.
- What are the dimensions of the SOIC package for the SN74HC14ANSR?
The dimensions of the SOIC package are 8.70 mm × 3.90 mm.
- What is the maximum operating temperature of the SN74HC14ANSR?
The maximum operating temperature is +85 °C.
- How many independent inverters does the SN74HC14ANSR contain?
The device contains six independent inverters.
- What is the typical application of the SN74HC14ANSR in switch debouncing?
The SN74HC14ANSR is used to debounce mechanical switches by filtering out noise and providing a stable output.
- Can the SN74HC14ANSR drive large capacitive loads?
While it can drive capacitive loads, it is recommended not to exceed the maximum load value specified in the datasheet to avoid performance issues.
- What is the significance of the balanced CMOS push-pull outputs in the SN74HC14ANSR?
The balanced CMOS push-pull outputs allow the device to sink and source similar currents, ensuring balanced output and preventing over-current damage.
