Overview
The MC74AC14DTR2, produced by onsemi, is a hex inverter Schmitt trigger integrated circuit. It contains six logic inverters that accept standard CMOS input signals and provide standard CMOS output levels. The MC74AC14 series is capable of transforming slowly changing input signals into sharply defined, jitter-free output signals, and it has a greater noise margin compared to conventional inverters. The device features Schmitt trigger inputs, which include hysteresis between the positive-going and negative-going input thresholds, making it insensitive to temperature and supply voltage variations.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| DC Supply Voltage (Referenced to GND) | VCC | -0.5 | 7.0 | V | |
| DC Input Voltage (Referenced to GND) | Vin | -0.5 | VCC + 0.5 | V | |
| DC Output Voltage (Referenced to GND) | Vout | -0.5 | VCC + 0.5 | V | |
| Supply Voltage (74AC) | VCC | 2.0 | 5.0 | 6.0 | V |
| Supply Voltage (74ACT) | VCC | 4.5 | 5.0 | 5.5 | V |
| Propagation Delay (74AC, 5.0 V, CL = 50 pF) | tPLH, tPHL | 1.5 | 11.5, 10.0 | ns | |
| Output Current (Source/Sink) | IOH, IOL | ±24 | mA | ||
| Operating Ambient Temperature Range | TA | -40 | 25 | 85 | °C |
Key Features
- Schmitt Trigger Inputs with hysteresis between positive-going and negative-going input thresholds (typically 1.0 V).
- Outputs Source/Sink 24 mA.
- MC74ACT14 has TTL compatible inputs.
- Pb-Free packages are available, and the devices are RoHS compliant.
- Capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.
- Greater noise margin compared to conventional inverters.
Applications
The MC74AC14DTR2 is suitable for a variety of applications where signal conditioning and noise immunity are crucial. These include:
- Digital signal processing systems where clean and stable output signals are necessary.
- Industrial control systems that require robust and reliable logic operations.
- Automotive electronics, especially where AEC-Q100 qualification is required.
- General-purpose logic circuits in consumer electronics and telecommunications.
Q & A
- What is the primary function of the MC74AC14DTR2?
The MC74AC14DTR2 is a hex inverter Schmitt trigger that transforms slowly changing input signals into sharply defined, jitter-free output signals.
- What is the significance of Schmitt trigger inputs in the MC74AC14DTR2?
Schmitt trigger inputs provide hysteresis between the positive-going and negative-going input thresholds, making the device insensitive to temperature and supply voltage variations and improving noise immunity.
- What are the output current capabilities of the MC74AC14DTR2?
The outputs can source or sink up to 24 mA.
- Is the MC74AC14DTR2 compatible with TTL inputs?
The MC74ACT14 version of this device has TTL compatible inputs.
- What is the operating temperature range for the MC74AC14DTR2?
The operating ambient temperature range is -40°C to 85°C.
- What are the supply voltage ranges for the MC74AC14 and MC74ACT14?
The supply voltage range for the MC74AC14 is 2.0 V to 6.0 V, and for the MC74ACT14, it is 4.5 V to 5.5 V.
- Are the packages of the MC74AC14DTR2 Pb-Free and RoHS compliant?
- What is the propagation delay of the MC74AC14DTR2?
The propagation delay for the MC74AC14 at 5.0 V and CL = 50 pF is typically 1.5 ns to 11.5 ns.
- What are some common applications for the MC74AC14DTR2?
- Is the MC74AC14DTR2 AEC-Q100 qualified?
