SN74AUC1G08DCKR

Overview

The SN74AUC1G08DCKR is a single 2-input positive-AND gate from the Texas Instruments AUC logic series. It operates within a supply voltage range of 0.8 V to 2.7 V, with specific optimization for 1.65 V to 1.95 V applications. The device features a maximum propagation delay of 2 ns at 1.8 V and 2.5 V under a 30 pF load. It provides an output drive capability of ±9 mA at 2.3 V and maintains a maximum quiescent current of 10 µA. The component supports partial-power-down modes via Ioff circuitry and utilizes a 5-pin SC-70 surface-mount package.

Feature Summary

• Supports mixed-mode signal operation through 3.6-V I/O tolerance while operating at lower voltages
• Includes dedicated Ioff circuitry to disable outputs and prevent backflow during partial-power-down states
• Provides robust electrostatic discharge protection exceeding standard human-body and machine model ratings

Applications

• Portable audio devices such as MP3 players and recorders
• Solid-state drives for client and enterprise storage systems
• Wireless peripherals including headsets, keyboards, and mice
• Telecom and server AC/DC power supply controllers
• High-definition television and home theater equipment

Procurement Notes

Verify that the ordering suffix 'R' corresponds to the tape-and-reel packaging format specified in the manufacturer's documentation. Confirm the SC-70 package designation matches the required footprint dimensions on the target printed circuit board. Ensure the selected variant meets the specific thermal resistance requirements for the intended operating environment.

Selection Notes

Select this component when designing low-voltage digital circuits requiring high-speed AND logic operations. The device is suitable for portable electronics where minimizing power consumption is critical due to its sub-1-V operability and low static current. Consider the 3.6-V input tolerance if interfacing with higher voltage domains without level shifting.

Part Context

This part belongs to the SN74AUC1Gxx family of ultra-low-voltage CMOS logic gates. The AUC series is engineered for high-speed performance in battery-powered applications. The DCKR suffix indicates the specific SC-70 package style and reel-based shipping configuration provided by Texas Instruments.

Replacement Considerations

SN74AUC1G08DBVR (SOT-23 package)

FAQ

How does the device handle partial-power-down conditions?

The SN74AUC1G08DCKR includes Ioff circuitry that automatically disables the outputs when the device is powered down, preventing damaging current backflow through the inputs or outputs.

What is the maximum input voltage tolerance?

The inputs are tolerant up to 3.6 V, allowing the device to interface with 3.6-V signals even when the supply voltage (VCC) is lower, supporting mixed-mode signal operation.