SN74AHC14DR

Overview

The SN74AHC14DR is a hex Schmitt-trigger inverter manufactured by Texas Instruments, belonging to the AHC logic series. It features six independent inverters within a single 14-pin SOIC package. The device operates on a supply voltage range of 2 V to 5.5 V and supports CMOS input levels. Key electrical parameters include a maximum high-level output current of -8 mA and a low-level output current of 8 mA. Propagation delay is specified at 12 ns under standard conditions. The component functions reliably across an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates six independent Schmitt-trigger inverters for signal conditioning
• Provides robust noise filtering through defined hysteresis characteristics
• Supports wide supply voltage operation from 2 V to 5.5 V
• Compatible with standard CMOS logic input levels

Applications

• Signal wave shaping and pulse generation
• Noise elimination in digital communication lines
• Transition edge detection circuits
• Oscillator circuit implementations

Procurement Notes

Verify the specific suffix DR indicates the tape-and-reel packaging format compatible with automated surface-mount assembly processes. Confirm that the ordering part number matches the exact manufacturer designation to ensure correct package type and reel specifications. Cross-reference the datasheet revision date to validate parameter accuracy against current production standards.

Selection Notes

Select this component when six independent inverting channels with Schmitt-trigger inputs are required in a compact surface-mount footprint. The AHC series offers improved speed compared to legacy counterparts while maintaining CMOS compatibility. Ensure the application voltage remains within the 2 V to 5.5 V range to guarantee proper switching thresholds and output drive capabilities.

Part Context

This device is part of the broader SN74AHC14 family, which includes variants with different packaging options such as PDIP and TSSOP. The 'DR' suffix specifically denotes the SOIC-14 surface-mount package configuration. It serves as a direct functional replacement for other hex Schmitt-trigger inverters within the same logic family, provided pinout and package dimensions align with the design constraints.

Replacement Considerations

Direct substitutes include SN74AHC14D (tube packaging) or SN74AHC14PW (TSSOP packaging). Verify package compatibility before substitution. Other manufacturers offering equivalent hex Schmitt-trigger inverters may require level-shifting considerations if supply voltages differ significantly.