Overview
The MC74VHC1G135DFT1G, produced by onsemi, is a single gate CMOS Schmitt NAND trigger with an open drain output. Fabricated with silicon gate CMOS technology, this device achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the low power dissipation characteristic of CMOS technology. The internal circuit is composed of three stages, including a buffered 3-state output, which provides high noise immunity and stable output. This component is particularly useful for interfacing 5 V circuits to 3 V circuits and can enhance noise immunity or square up slowly changing waveforms.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | −0.5 to +7.0 | V |
| DC Input Voltage (VIN) | −0.5 to +7.0 | V |
| DC Output Voltage (VOUT) | −0.5 to 7.0 | V |
| Input Diode Current (IIK) | −20 | mA |
| Output Diode Current (IOK) | −20 | mA |
| DC Output Current (IOUT) | ±25 | mA |
| DC Supply Current (ICC) | ±50 | mA |
| Operating Temperature Range (TA) | −55 to +125 | °C |
| Storage Temperature Range (TSTG) | −65 to +150 | °C |
| Lead Temperature (TL) | 260 | °C |
| Junction Temperature (TJ) | +150 | °C |
| Positive Threshold Voltage (VT+) | 1.50 to 3.70 | V |
| Negative Threshold Voltage (VT−) | 0.65 to 2.60 | V |
Key Features
- High Speed Operation: The MC74VHC1G135DFT1G achieves high-speed operation with a typical propagation delay of 4.9 ns at VCC = 5 V.
- Low Power Dissipation: It maintains low internal power dissipation, with a maximum quiescent supply current of 1 μA at TA = 25°C.
- Open Drain Output: The open drain output allows for setting the output switching level using an external resistor and power supply, enabling interfacing between circuits of different voltages.
- Noise Immunity: The device enhances noise immunity and can square up slowly changing waveforms.
- Input Protection: The input structure provides protection when voltages up to 7 V are applied, regardless of the supply voltage.
Applications
- Interface Between Different Voltage Circuits: The MC74VHC1G135DFT1G can be used to interface 5 V circuits to circuits of any voltage between VCC and 7 V using an external resistor and power supply.
- Noise Reduction and Waveform Squaring: It is useful for enhancing noise immunity and squaring up slowly changing waveforms.
- LED Drivers and GTL Drivers: The component can be used in LED driver and GTL driver applications due to its high speed and low power characteristics.
- Complex Boolean Functions: It can be part of circuits implementing complex Boolean functions due to its NAND logic.
Q & A
- What is the MC74VHC1G135DFT1G?
The MC74VHC1G135DFT1G is a single gate CMOS Schmitt NAND trigger with an open drain output, fabricated with silicon gate CMOS technology.
- What are the key features of the MC74VHC1G135DFT1G?
Key features include high-speed operation, low power dissipation, open drain output, enhanced noise immunity, and input protection up to 7 V.
- What is the typical propagation delay of the MC74VHC1G135DFT1G?
The typical propagation delay is 4.9 ns at VCC = 5 V.
- What is the maximum quiescent supply current of the MC74VHC1G135DFT1G?
The maximum quiescent supply current is 1 μA at TA = 25°C.
- What is the operating temperature range of the MC74VHC1G135DFT1G?
The operating temperature range is −55 to +125°C.
- How does the MC74VHC1G135DFT1G protect against voltage mismatches?
The input and output structures provide protection when voltages up to 7 V are applied, regardless of the supply voltage, and when the output voltage exceeds VCC or is below GND.
- What types of applications can the MC74VHC1G135DFT1G be used in?
It can be used in interfacing different voltage circuits, noise reduction, waveform squaring, LED drivers, GTL drivers, and complex Boolean functions.
- What are the package options for the MC74VHC1G135DFT1G?
The component is available in SC70-5, SC-88A, SOT-353, SOT23-5, TSSOP-5, and SC59-5 packages.
- Is the MC74VHC1G135DFT1G lead-free?
Yes, the MC74VHC1G135DFT1G is available in lead-free versions.
- What is the storage temperature range for the MC74VHC1G135DFT1G?
The storage temperature range is −65 to +150°C.
