SN74AC14N

Overview

The SN74AC14N is a hex inverter from the Texas Instruments SN74AC14 series, featuring Schmitt-trigger inputs for noise immunity. It operates within a supply voltage range of 2 V to 6 V and supports through-hole mounting in a standard PDIP-14 package. The device provides push-pull outputs with high drive capabilities, delivering ±24 mA at 5 V. It ensures signal integrity by accepting input voltages up to 6 V and offers propagation delays as low as 9.5 ns, making it suitable for robust digital inversion tasks.

Feature Summary

• Hex Schmitt-trigger inverters providing enhanced noise immunity for slow or noisy signals
• Wide operating voltage range supporting 2 V to 6 V power supplies
• High output drive capability with ±24 mA current capacity at 5 V
• Push-pull output configuration ensuring strong logic level transitions

Applications

• Inverting digital signals with high noise tolerance
• Debouncing mechanical switches to eliminate contact bounce artifacts
• Synchronizing and conditioning clock input signals

Procurement Notes

Verify the specific package type and manufacturer lot codes upon receipt to ensure compatibility with your PCB footprint and assembly requirements. Confirm that the component meets the required industrial temperature specifications for your intended environment. Cross-reference the datasheet revision date to ensure alignment with your design's electrical constraints and pinout definitions before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring Schmitt-trigger action to clean up degraded signals. The AC series offers faster switching speeds compared to HC variants while maintaining similar voltage ranges. Ensure the application does not exceed the maximum output current ratings during peak load conditions. Consider the PDIP-14 package availability if manual assembly or prototyping is necessary.

Part Context

This part belongs to the broader SN74AC logic family, which bridges the performance gap between older LS and newer HCT technologies. It serves as a direct functional replacement for other hex inverters but adds Schmitt-trigger hysteresis. The N suffix denotes the through-hole PDIP packaging option, distinguishing it from surface-mount equivalents like the NS or PW variants within the same logical family.

Replacement Considerations

SN74ACT14N: Offers TTL-compatible inputs with similar speed but requires strict 5V operation. SN74HC14N: Provides comparable functionality with lower power consumption but slower switching speeds. SN74AC14DR: Surface-mount alternative using SOIC-14 package for automated assembly.