SN74AUC1G19DBVT

Overview

The SN74AUC1G19DBVT is a single 1-of-2 decoder/demultiplexer from the AUC logic family, operational at supply voltages between 0.8 V and 2.7 V. It features an active-low enable input (E) that buffers data from input A to outputs Y0 (true) and Y1 (complement). The device supports partial-power-down mode via Ioff circuitry and offers ESD protection exceeding 2000 V (HBM), 200 V (MM), and 1000 V (CDM). It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Supports mixed-mode signal operation with 3.6-V I/O tolerance while operating at optimized 1.8-V levels
• Enables safe partial-power-down applications through dedicated Ioff output disabling circuitry
• Provides robust electrostatic discharge protection across human-body, machine, and charged-device models

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
• Embedded personal digital assistants and tablet computers

Procurement Notes

Verify the specific package suffix 'VT' corresponds to the SC-70 (DCK) form factor rather than the standard SOT-23 variant. Confirm the presence of the 'E4' or similar environmental designation if lead-free compliance beyond standard RoHS is required. Ensure the ordering quantity matches the tape-and-reel specifications provided in the manufacturer's packaging addendum.

Selection Notes

Select this component when designing low-voltage logic circuits requiring sub-1-V operability and high-speed decoding. The AUC series is suitable for applications demanding minimal power consumption alongside fast propagation delays. Verify that the system voltage remains within the 0.8-V to 2.7-V range to ensure proper logic threshold performance.

Part Context

This device belongs to Texas Instruments' AUC Little Logic portfolio, designed specifically for ultra-low-voltage portable electronics. It complements other single-gate logic solutions by providing efficient demultiplexing capabilities in a compact footprint. The NanoFree technology option allows for further size reduction in space-constrained designs.

Replacement Considerations

SN74AUC1G19DBVR: Identical functional logic housed in a standard SOT-23 package instead of the SC-70 configuration.