SN74AHCT1G14DCK3

Overview

The SN74AHCT1G14DCK3 is a single Schmitt-trigger inverter gate from Texas Instruments, designed for high-speed digital applications. It operates within a voltage range of 4.5V to 5.5V and features low power consumption with a maximum static current of 1μA. The device provides an output drive capability of ±8mA at 5V and exhibits a maximum propagation delay of 8ns at this supply voltage. Packaged in a compact 5-SC70 (SOT-353) housing, it supports an extended temperature range from -40°C to 125°C, ensuring reliable performance in demanding environments.

Feature Summary

• Schmitt-trigger input action eliminates noise-induced glitches during signal transitions
• Low power consumption ensures minimal static current draw across operating conditions
• High-speed operation with fast propagation delays suitable for advanced logic systems

Applications

• Signal conditioning for noisy digital lines
• Pulse generation and shaping circuits
• Oscillator circuits requiring stable threshold levels

Procurement Notes

Verify the obsolete status of the SN74AHCT1G14DCK3 before procurement planning. Confirm availability of parametric equivalents such as the SN74AHCT1G14DCKR if production continuity is required. Ensure that the SC70 package dimensions match the target PCB footprint. Validate that the 4.5V to 5.5V operating range aligns with the system power supply specifications.

Selection Notes

Select this component when Schmitt-trigger functionality is required for a single inverter channel in space-constrained designs. The AHCT series compatibility allows direct interfacing with TTL-level signals while maintaining CMOS low-power benefits. Consider the 5-SC70 package size for applications where board real estate is limited. Verify that the 8ns propagation delay meets the timing requirements of the specific digital interface.

Part Context

This part belongs to the SN74AHCT1Gxx family of single-gate logic devices. The 'HCT' designation indicates compatibility with standard 5V TTL logic levels. The '1G' prefix signifies a single gate configuration within a minimal footprint package. This series is engineered for high-density digital systems requiring robust noise immunity and low power dissipation.

Replacement Considerations

The SN74AHCT1G14DCKR is listed as a parametric equivalent substitute. Verify pinout compatibility and electrical characteristics before substitution. Check for any differences in marking codes or packaging variants between the obsolete DCK3 and the replacement DCKR.