74VCX38BQX

Inverter Gates Overview

The Fairchild Semiconductor 74VCX38BQX is a low-voltage CMOS quad 2-input NAND gate featuring open-drain outputs. It operates within a supply voltage range of 1.4 V to 3.6 V and supports 5 V tolerant inputs and outputs, facilitating direct interfacing with 5 V systems without level shifting. The device provides high noise immunity and low power consumption typical of advanced CMOS technology. Packaged in an ultra-thin DQFN format, it is designed for space-constrained portable applications requiring reliable logic gating at reduced voltages.

Inverter Gates Feature Summary

• Features open-drain outputs suitable for wired-OR configurations and bus-driven environments
• Supports 5 V tolerant inputs and outputs for seamless interface with legacy 5 V logic systems
• Operates on a single low supply voltage ranging from 1.4 V to 3.6 V
• Utilizes advanced CMOS technology for low power consumption and high noise immunity

Inverter Gates Applications

• Portable battery-powered devices such as cellular phones and laptops
• Bus-oriented systems requiring open-drain logic capabilities
• Low-voltage microprocessor control circuits
• Level translation interfaces between 1.8 V/3.3 V and 5 V domains

Inverter Gates Procurement Notes

Verify the specific suffix BQX against the manufacturer's current datasheet to confirm package dimensions and pinout compatibility. Ensure the design accounts for the open-drain output requirement by implementing appropriate external pull-up resistors. Confirm that the 5 V tolerance specifications align with the target system's voltage levels to prevent damage or signal integrity issues during operation.

Inverter Gates Selection Notes

Select this component when designing low-voltage logic circuits that require interfacing with 5 V signals. The open-drain architecture makes it suitable for bus applications where multiple devices share a common line. Consider the DQFN package for its small footprint and thermal performance in dense PCB layouts. Verify that the operating voltage range matches the system's power supply constraints.

Inverter Gates Part Context

The 74VCX series represents Fairchild's low-voltage CMOS logic family, optimized for portable electronics. The 74VCX38 specifically implements quad 2-input NAND gates with open-drain outputs. This part belongs to the broader VCX line, which emphasizes 5 V tolerance and low voltage operation, distinguishing it from standard 5 V logic families. It complements other VCX components like transceivers and buffers in mixed-voltage system designs.

Inverter Gates Replacement Considerations

Check for equivalents from other manufacturers offering the same VCX logic family characteristics. Ensure any substitute maintains the 1.4 V to 3.6 V supply range and 5 V tolerance. Verify that the replacement also features open-drain outputs and the same DQFN package to ensure mechanical and electrical compatibility.