Texas Instruments SN74AUC1G07DBVRE4

Overview

SN74AUC1G07DBVRE4 from Texas Instruments is a single non-inverting buffer/driver with open-drain output, designed for 1.65–1.95 V operation and 3.6-V I/O tolerant interface. It delivers ±8-mA output drive at 1.8 V, achieves 2.5 ns max propagation delay, and supports sub-1-V operation down to 0.8 V - enabling use in low-voltage logic translation and wired-OR bus interfacing in portable audio and SSD control circuits.

For engineers reviewing the SN74AUC1G07DBVRE4 datasheet, SN74AUC1G07DBVRE4 pinout, SN74AUC1G07DBVRE4 application, or SN74AUC1G07DBVRE4 equivalent, key selection criteria include open-drain compatibility with mixed-voltage systems, Ioff-enabled partial power-down protection, and NanoFree™ SOT-23 package footprint constraints for space-constrained PCB layouts.

Technical Context

This device implements a single positive-logic buffer with open-drain output stage, requiring an external pull-up resistor to define high-level voltage. Its Ioff circuitry actively disables outputs during power-down, blocking back-drive current when VCC = 0 V - critical for hot-swap and multi-rail system integrity.

Operation spans 0.8 V to 2.7 V VCC, but is optimized for 1.65–1.95 V supply; input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), and output VOL remains ≤0.45 V at 8 mA sink current under 1.65 V - ensuring robust noise margin in 1.8-V domains.

Key Specifications

Pinout & Package

SOT-23 (DBV) 5-pin package, 2.90 mm × 1.60 mm body size, 1.45 mm max height; NanoFree™ construction uses die-as-package for minimal footprint and thermal resistance (RθJA = 206°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with SN74LVC1G07DBVR and 74AUP1G07GW,125, the SN74AUC1G07DBVRE4 uniquely combines NanoFree™ SOT-23 miniaturization, guaranteed sub-1-V operation, and lowest propagation delay at 1.8 V - making it optimal for next-gen portable SSDs and ultra-compact AV receivers where board area and timing margin are critical.

Availability

SN74AUC1G07DBVRE4 is available at Aetrix Electronics and suitable for portable audio, solid-state drive (SSD), and wireless peripheral designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for SN74AUC1G07DBVRE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability, low-power IC design.

The SN74AUC1G07 belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically for ultra-low-voltage signal conditioning in portable and battery-powered systems where power efficiency and board space are primary constraints.

FAQ

What is the maximum recommended supply voltage for SN74AUC1G07DBVRE4?

The absolute maximum VCC rating for SN74AUC1G07DBVRE4 is 3.6 V, but its recommended operating range is 0.8 V to 2.7 V. Operation above 2.7 V risks exceeding electrical specifications and may compromise latch-up immunity or ESD robustness. For mixed-voltage interfacing, the 3.6-V I/O tolerance applies only to input/output pins - VCC must remain within 0.8–2.7 V to ensure correct internal logic behavior and timing compliance.

Does SN74AUC1G07DBVRE4 support true bidirectional communication?

No, SN74AUC1G07DBVRE4 is a unidirectional non-inverting buffer with open-drain output - it drives signals only from input A to output Y. Bidirectional operation requires external circuitry (e.g., pull-up + series resistor) or a dedicated transceiver. The device enables wired-OR logic when multiple SN74AUC1G07DBVRE4 outputs share a common bus line, but each instance functions strictly as a one-way driver.

Can SN74AUC1G07DBVRE4 be used without an external pull-up resistor?

No - SN74AUC1G07DBVRE4 has an open-drain output and cannot source current. An external pull-up resistor is mandatory to establish a valid HIGH logic level on Y. Typical values range from 2.2 kΩ (for speed-critical 15-pF loads) to 10 kΩ (for low-power 30-pF buses); selection depends on rise time requirements, bus capacitance, and supply voltage.

How does Ioff functionality protect circuits during partial power-down?

When VCC = 0 V, the Ioff circuitry in SN74AUC1G07DBVRE4 disables both input and output buffers, limiting leakage current to ±10 µA even if A or Y is driven to 2.7 V. This prevents back-driving current from live I/O lines into a powered-down domain - protecting downstream components and avoiding unintended power injection in SSD enable chains or docked peripheral interfaces.

Is the NanoFree™ package of SN74AUC1G07DBVRE4 compatible with standard SOT-23 footprints?

Yes - SN74AUC1G07DBVRE4 in DBV (SOT-23) package uses industry-standard 5-pin SOT-23 mechanical dimensions (2.90 mm × 1.60 mm body, 0.95 mm pin pitch), fully compatible with existing SOT-23 land patterns and reflow profiles. NanoFree™ refers to internal construction (die-as-package), not external form factor - no PCB layout changes are required for migration from conventional SOT-23 logic devices.