Overview
The 74HC14D, produced by NXP USA Inc. (now part of Nexperia), is a hex inverter with Schmitt-trigger inputs. This device is designed to transform slowly changing input signals into sharply defined, jitter-free output signals. It is part of the 74HC/74HCT family of logic ICs, known for their compatibility with CMOS and TTL logic levels.
Key Specifications
| Parameter | Value |
|---|---|
| VCC (V) | 2.0 - 6.0 |
| Logic Switching Levels | CMOS |
| Output Drive Capability (mA) | ± 5.2 |
| fmax (MHz) | 36 |
| Number of Bits | 6 |
| Power Dissipation Considerations | Low power dissipation |
| Tamb (°C) | -40 to 125 |
| Package Name | SO14 (SOT108-1) |
Key Features
- Schmitt-trigger Inputs: Transform slowly changing input signals into sharply defined, jitter-free output signals.
- Wide Supply Voltage Range: Operates from 2.0 to 6.0 V.
- CMOS Low Power Dissipation: Low power consumption.
- High Noise Immunity: Enhanced noise immunity due to Schmitt-trigger inputs.
- Unlimited Input Rise and Fall Times: No restrictions on input signal rise and fall times.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- Clamp Diodes: Includes clamp diodes to enable the use of current limiting resistors for interfacing inputs to voltages in excess of VCC.
Applications
The 74HC14D is versatile and finds applications across various industries, including:
- Automotive: Used in automotive systems for signal conditioning and noise reduction.
- Industrial: Employed in industrial control systems and automation.
- Consumer Electronics: Found in consumer devices requiring stable and noise-free signal processing.
- Computing and Power Systems: Used in computing and power management systems for reliable signal handling.
Q & A
- What is the primary function of the 74HC14D?
The primary function of the 74HC14D is to act as a hex inverter with Schmitt-trigger inputs, transforming slowly changing input signals into sharply defined output signals. - What is the supply voltage range for the 74HC14D?
The supply voltage range for the 74HC14D is from 2.0 to 6.0 V. - What type of logic levels does the 74HC14D support?
The 74HC14D supports CMOS logic levels and is compatible with TTL logic levels. - What is the maximum frequency of operation for the 74HC14D?
The maximum frequency of operation for the 74HC14D is 36 MHz. - What is the significance of Schmitt-trigger inputs in the 74HC14D?
Schmitt-trigger inputs provide high noise immunity and transform slowly changing input signals into sharply defined, jitter-free output signals. - What is the package type for the 74HC14D?
The package type for the 74HC14D is SO14 (SOT108-1). - What are the operating temperature limits for the 74HC14D?
The operating temperature limits for the 74HC14D are from -40°C to 125°C. - Does the 74HC14D have any special features for input protection?
Yes, the 74HC14D includes clamp diodes to enable the use of current limiting resistors for interfacing inputs to voltages in excess of VCC. - What industries commonly use the 74HC14D?
The 74HC14D is used in various industries including automotive, industrial, consumer electronics, computing, and power systems. - What is the power dissipation characteristic of the 74HC14D?
The 74HC14D has low power dissipation.
