SN74AUC1G14DCKRG4

Overview

The SN74AUC1G14DCKRG4 is a single Schmitt-trigger inverter from the Texas Instruments AUC logic family, housed in a 5-pin SC-70 package. It operates within a supply voltage range of 0.8 V to 2.7 V and supports mixed-mode signal operation with 3.6-V I/O tolerance. The device features a maximum propagation delay of 2.5 ns at 1.8 V under a 30 pF load, with a typical delay of 1.6 ns. It includes dedicated Ioff circuitry for partial-power-down mode support and provides an output drive capability of ±8 mA at 1.8 V.

Feature Summary

• Schmitt-trigger action provides distinct positive-going and negative-going input threshold levels for noise immunity
• Ioff circuitry disables outputs to prevent damaging current backflow during partial-power-down states
• ESD protection exceeds JESD 22 standards with ratings of 2000 V (HBM), 200 V (MM), and 1000 V (CDM)
• Latch-up performance exceeds 100 mA per JESD 78 Class II specifications

Applications

• AV Receiver
• Portable Audio Dock
• Blu-Ray Player and Home Theater Systems
• Embedded PC
• Solid State Drive (SSD) Controllers

Procurement Notes

Verify that the G4 suffix indicates lead-free packaging compliant with RoHS standards. Confirm the DCK designation corresponds to the SC-70 package type. Ensure the ordering part number matches the specific tape and reel quantity requirements for your assembly line. Cross-reference the manufacturer's latest Package Option Addendum for any updates on material types or moisture sensitivity levels.

Selection Notes

Select this component when signal integrity requires hysteresis to filter noise on slow-rising edges. The sub-1-V operability makes it suitable for low-voltage portable applications. Verify that the 3.6-V I/O tolerance aligns with the system's interface voltage levels. Consider the thermal resistance characteristics if the operating environment approaches the upper temperature limit.

Part Context

This device belongs to the SN74AUC1Gxx series of Little Logic devices designed for high-speed, low-power applications. The AUC family is optimized for 1.8-V operation while maintaining compatibility with broader voltage ranges. The SC-70 package offers a compact footprint suitable for space-constrained printed circuit board layouts.

Replacement Considerations

SN74AUC1G14DCKR is the non-RoHS equivalent without the G4 suffix.