Overview
The SN74AHC14DRE4 is a Hex Schmitt-Trigger Inverter IC produced by Texas Instruments. This device contains six independent inverters, each performing 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 ideal for handling noisy or slow inputs that could cause issues with standard CMOS inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2 V to 5.5 V | V |
| Output Drive at 5 V | ±8 mA | mA |
| Low Power Consumption (ICC) | 20 µA (max) | µA |
| ESD Protection | 2000 V (Human-Body Model), 200 V (Machine Model), 1000 V (Charged-Device Model) | V |
| Propagation Delay (CL = 50 pF, TA = 25°C) | 7 ns to 12 ns | ns |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 14-SOIC |
Key Features
- Schmitt-Trigger inputs for improved noise immunity and resistance to oscillation.
- Wide operating voltage range from 2 V to 5.5 V.
- High output drive capability: ±8 mA at 5-V VCC.
- Low power consumption: maximum ICC of 20 µA.
- ESD protection exceeds JESD 22 standards: 2000V Human-Body Model, 200V Machine Model, and 1000V Charged-Device Model.
- Latch-up performance exceeds 250 mA per JESD 17.
Applications
- UPS (Uninterruptible Power Supplies)
- White goods
- Computer peripherals
- Printers
- AC servo drives
- Desktop computers
Q & A
- What is the primary function of the SN74AHC14DRE4?
The SN74AHC14DRE4 is a Hex Schmitt-Trigger Inverter IC, performing the Boolean function Y = A for each of its six independent inverters.
- What is the operating voltage range of the SN74AHC14DRE4?
The operating voltage range is from 2 V to 5.5 V.
- What is the output drive capability of the SN74AHC14DRE4 at 5-V VCC?
The output drive capability is ±8 mA at 5-V VCC.
- What kind of ESD protection does the SN74AHC14DRE4 offer?
The device offers ESD protection exceeding JESD 22 standards: 2000V Human-Body Model, 200V Machine Model, and 1000V Charged-Device Model.
- What is the maximum power consumption (ICC) of the SN74AHC14DRE4?
The maximum power consumption (ICC) is 20 µA.
- What are some common applications of the SN74AHC14DRE4?
Common applications include UPS, white goods, computer peripherals, printers, AC servo drives, and desktop computers.
- What is the significance of Schmitt-Trigger inputs in the SN74AHC14DRE4?
Schmitt-Trigger inputs provide improved noise immunity and resistance to oscillation, making them suitable for handling noisy or slow inputs.
- What is the propagation delay of the SN74AHC14DRE4?
The propagation delay ranges from 7 ns to 12 ns for CL = 50 pF at TA = 25°C.
- What is the operating temperature range of the SN74AHC14DRE4?
The operating temperature range is from -40°C to 125°C.
- In what package type is the SN74AHC14DRE4 available?
The device is available in a 14-SOIC package.
