SN74AUC2G04DCKR

Overview

The SN74AUC2G04DCKR is a dual inverter gate from the Texas Instruments AUC logic series, housed in a six-pin SC-70 (DCK) surface-mount 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 1.7 ns at 1.8 V and provides ±8-mA output drive capability. It includes Ioff circuitry for partial-power-down applications and exhibits high ESD protection ratings.

Feature Summary

• Supports partial-power-down mode via integrated Ioff circuitry that disables outputs to prevent current backflow
• Features 3.6-V I/O tolerance to enable compatibility with mixed-mode signal operations across different voltage domains
• Provides robust electrostatic discharge protection exceeding standard human-body, machine model, and charged-device model thresholds

Applications

• Mixed-mode digital systems requiring interface between low-voltage logic and higher-voltage I/O lines
• Partial-power-down circuits where controlled output disabling prevents damaging reverse currents during power transitions
• High-speed signal inversion in portable and battery-operated devices operating below 2.7 V

Procurement Notes

Verify the complete part number against official ordering lists to confirm the specific DCK package variant and tape-and-reel quantity. Ensure the selected component matches the required -40°C to +85°C operating temperature range. Confirm RoHS compliance status and lead finish specifications align with assembly requirements before procurement.

Selection Notes

Select this component when designing circuits that require sub-1-V operation combined with 3.6-V tolerant inputs. It is suitable for applications needing fast switching speeds under 1.8-V supplies while maintaining low static power consumption. Consider the SC-70 package dimensions for space-constrained PCB layouts requiring surface-mount integration.

Part Context

This device belongs to the SN74AUC2Gxx family of ultra-low-power CMOS logic gates. The AUC series is optimized for modern low-voltage digital designs, offering performance improvements over legacy families while reducing power dissipation. The dual inverter configuration allows for efficient signal path management in compact electronic modules.

Replacement Considerations

SN74AUC2G04DBVR

FAQ

How does the Ioff feature function in this device?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device into the power supply rails.

What is the input voltage tolerance relative to the supply voltage?

The inputs are designed to be 3.6-V I/O tolerant, allowing them to accept signals up to 3.6 V even when the device is operating at lower supply voltages such as 1.8 V.