SN74AHC1G14DCKTE4

Overview

The SN74AHC1G14DCKTE4 is a single-channel Schmitt-trigger inverter from the Texas Instruments AHC logic family. It operates within a supply voltage range of 2V to 5.5V and features over-voltage tolerant inputs. The device provides balanced push-pull outputs with a maximum output current of 8mA for both high and low states. It exhibits an average propagation delay of 5-10ns and maintains a maximum static supply current of 10µA. The component supports an operating temperature range from -40°C to +125°C and is housed in a compact SC-70-5 (SOT-353) surface-mount package.

Feature Summary

• Schmitt-trigger input action eliminates noise sensitivity at switching thresholds
• Over-voltage tolerant inputs allow safe interfacing with higher voltage signal lines
• Balanced push-pull outputs provide symmetrical drive strength for clean signal transitions

Applications

• Signal conditioning for noisy digital environments
• Pulse width modulation (PWM) signal generation
• Oscillator circuit implementation

Procurement Notes

Verify the specific TE4 suffix against the manufacturer's latest documentation to confirm assembly origin and material composition changes. Ensure the SC-70-5 footprint matches the target PCB design, as pin configurations can vary between similar packages. Cross-reference the RoHS status with current environmental compliance requirements before finalizing procurement orders.

Selection Notes

Select this component when noise immunity is critical due to its Schmitt-trigger architecture. The wide supply voltage range accommodates various system power rails. Consider the small SC-70-5 package for space-constrained designs. Verify that the 8mA drive capability meets the load requirements of the connected downstream circuitry without exceeding absolute maximum ratings.

Part Context

This part belongs to the SN74AHC1Gxx series of single-function logic gates designed for high-speed applications. The AHC technology offers performance comparable to standard CMOS but with lower power consumption. The DCK package variant specifically denotes the SC-70-5 form factor, which is widely used in portable electronics and compact industrial modules requiring minimal board real estate.

Replacement Considerations

SN74AHC1G14DCKR

FAQ

What is the primary function of the Schmitt trigger in this inverter?

The Schmitt trigger input provides hysteresis, which prevents output oscillation caused by slow-rising or noisy input signals by establishing distinct high-to-low and low-to-high threshold voltages.

How does the over-voltage tolerance benefit system design?

It allows the 5V-tolerant inputs to interface safely with 3.3V or other logic families without requiring level shifting resistors, simplifying the circuit design and reducing component count.