ON Semiconductor MC74LCX14DR2: Hex Schmitt-Trigger Inverter

The MC74LCX14DR2 from ON Semiconductor is a high-performance, six-universal Schmitt-trigger inverter integrated circuit designed for use in systems that require logic-level translation and signal conditioning. This device is part of the LCX family, which is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining CMOS low power dissipation.

The MC74LCX14DR2 is characterized for operation from -40°C to 85°C, making it suitable for a wide range of industrial applications. Its 5V tolerant inputs allow for interface flexibility with 5V systems, and it is fully compatible with 3.3V operating voltage, ensuring its use in mixed-voltage environments. The device is supplied in a compact SOIC-14 package that is both space-saving and convenient for automated assembly processes.

The Schmitt-trigger inputs of the MC74LCX14DR2 provide hysteresis, which is particularly useful in applications where slow input transition rates are encountered. This feature helps to enhance noise immunity and allows the device to transform slowly changing input signals into sharply defined jitter-free output signals, thereby improving system performance.

Key features of the MC74LCX14DR2 include:

• High-speed operation: t<sub>PD 5.3 ns (typical) at V<sub>CC = 3.3V
• Power-down high impedance inputs and outputs
• Support for live insertion and withdrawal (Note: To ensure the safe application of this feature, specific guidelines must be followed.)
• ±24 mA output drive at 3.3V
• Implements patented noise/EMI reduction circuitry
• Latch-up performance exceeds 500 mA
• ESD performance: Human-body model > 2000V, Machine model > 200V

These features make the MC74LCX14DR2 a versatile component for applications such as signal conditioning, level shifting, line driving, and waveform shaping. Its robust design and compatibility with various logic levels make it an ideal choice for modern mixed-voltage systems, including telecommunications, computing, and industrial control systems.

ON Semiconductor's commitment to quality and performance ensures that the MC74LCX14DR2 meets the stringent requirements of electronic system design, delivering reliability and functionality that designers expect from a leading semiconductor manufacturer.