74AHCT3G14DP,125

Overview

The 74AHCT3G14DP,125 is a triple inverting Schmitt trigger from the Nexperia 74AHCT series. It operates within a supply voltage range of 4.5 V to 5.5 V and accepts TTL input levels. The device features overvoltage tolerant inputs up to 5.5 V, enabling use as translators in mixed-voltage environments. It provides high noise immunity and CMOS low power dissipation with balanced propagation delays. The component is housed in an 8-lead TSSOP plastic thin shrink small outline package (SOT505-2) and is specified for operation across an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Triple inverter configuration with Schmitt-trigger inputs for jitter-free output signals
• Overvoltage tolerant inputs allowing interface to voltages exceeding VCC
• High noise immunity suitable for highly noisy environments
• ESD protection compliant with ANSI/ESDA/JEDEC standards

Applications

• Wave and pulse shaping in highly noisy environments
• Astable multivibrator circuits
• Monostable multivibrator circuits

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when TTL logic levels are required at the input while maintaining CMOS performance characteristics. The AHCT variant ensures compatibility with standard TTL outputs. Ensure the design accommodates the 4.5 V minimum supply voltage requirement. Consider the TSSOP8 package dimensions if board space is constrained relative to standard SO packages.

Part Context

This part belongs to the 74AHC/AHCT family of high-speed CMOS logic devices. The '3G' designation indicates three independent logic functions within a single package, optimizing board space. The 'T' suffix specifies TTL-compatible input thresholds, distinguishing it from the standard AHC version which uses CMOS thresholds. This family is designed for applications requiring wide supply voltage ranges and robust noise immunity.

Replacement Considerations

Direct functional equivalents include the 74AHC3G14DP,125 (CMOS input levels) and other package variants such as 74AHCT3G14DC or 74AHCT3G14GT. Verify that the replacement maintains the required TTL input threshold specifications and the same thermal operating range.