Overview
The SN74HC14DRG4, produced by Texas Instruments, 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 operates over a wide voltage range of 2 V to 6 V and a temperature range of -40°C to +85°C, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage (VCC) | 2 | - | 6 | V |
| Operating Temperature (TA) | -40 | - | 85 | °C |
| Propagation Delay (tpd) at 2 V | 55 | 125 | 155 | ns |
| Propagation Delay (tpd) at 4.5 V | 12 | 25 | 31 | ns |
| Propagation Delay (tpd) at 6 V | 11 | 21 | 26 | ns |
| Transition Time (tt) at 2 V | 38 | 75 | 95 | ns |
| Transition Time (tt) at 4.5 V | 8 | 15 | 19 | ns |
| Transition Time (tt) at 6 V | 6 | 13 | 16 | ns |
| Package Type | SOIC (14) | - | - | - |
| Package Size | 8.70 mm × 3.90 mm | - | - | - |
Key Features
- Buffered inputs with Schmitt-trigger characteristics for noise immunity.
- Wide operating voltage range: 2 V to 6 V.
- Wide operating temperature range: -40°C to +85°C.
- Supports fanout up to 10 LSTTL loads.
- Significant power reduction compared to LSTTL logic ICs.
- Balanced CMOS push-pull outputs for equal current sourcing and sinking capabilities.
- No input signal transition rate requirements due to Schmitt-trigger inputs.
Applications
- Synchronize inverted clock inputs.
- Debounce a switch.
- Invert a digital signal.
Q & A
- What is the operating voltage range of the SN74HC14DRG4? The operating voltage range is 2 V to 6 V.
- What is the temperature range for the SN74HC14DRG4? The operating temperature range is -40°C to +85°C.
- How many inverters does the SN74HC14DRG4 contain? It contains six independent inverters.
- What type of inputs does the SN74HC14DRG4 have? It has Schmitt-trigger inputs.
- What is the typical propagation delay at 4.5 V? The typical propagation delay at 4.5 V is 25 ns.
- Can the SN74HC14DRG4 drive LSTTL loads? Yes, it supports fanout up to 10 LSTTL loads.
- What are the benefits of Schmitt-trigger inputs? Schmitt-trigger inputs provide noise immunity and do not require specific input signal transition rates.
- What is the package type and size of the SN74HC14DRG4? The package type is SOIC (14) and the size is 8.70 mm × 3.90 mm.
- How does the SN74HC14DRG4 handle noise? The Schmitt-trigger inputs help reject noise, and the hysteresis value (ΔVT(min)) provides the peak-to-peak limit for noise tolerance.
- What are some common applications of the SN74HC14DRG4? Common applications include synchronizing inverted clock inputs, debouncing switches, and inverting digital signals.
