Texas Instruments SN74AUC1G07DBVRG4

Overview

SN74AUC1G07DBVRG4 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 signaling. It delivers ±8-mA output drive at 1.8 V, achieves 2.5 ns max propagation delay (tpd), and supports partial power-down via Ioff. It is used in portable audio interfaces and SSD power sequencing where level-shifting and wired-OR logic are required.

For engineers reviewing the SN74AUC1G07DBVRG4 datasheet, SN74AUC1G07DBVRG4 pinout, SN74AUC1G07DBVRG4 application, or SN74AUC1G07DBVRG4 equivalent, key selection criteria include open-drain compatibility with 1.8-V logic domains, sub-1-V operability down to 0.8 V, Ioff-enabled back-drive protection, ESD robustness (2000-V HBM), and NanoFree™ SOT-23 package footprint.

Technical Context

This device implements a single-channel positive-logic buffer with open-drain output, enabling active-low wired-OR and active-high wired-AND bus configurations when paralleled with other open-drain devices. Its Ioff circuitry actively disables outputs during power-down, blocking reverse current flow from live buses into unpowered sections.

It operates across 0.8–2.7 V VCC, but is optimized for 1.65–1.95 V supply rails-making it suitable for modern low-voltage mixed-signal systems. Input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), ensuring reliable switching across its full voltage range.

Key Specifications

Pinout & Package

SOT-23 (DBV) 5-pin package, 2.90 mm × 1.60 mm body size, 1.45 mm max height, NanoFree™ die-as-package construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar buffer/driver applications.

Compared with SN74AUC1G07DBVRG4, SN74LVC1G07DBVR offers broader voltage flexibility but sacrifices sub-1-V operation and NanoFree™ miniaturization, while NC7SZ07P5X trades 1.0 ns of speed for greater sink current and uses a physically larger package - making SN74AUC1G07DBVRG4 optimal for space-constrained, ultra-low-voltage, high-speed buffering.

Availability

SN74AUC1G07DBVRG4 is available at Aetrix Electronics and suitable for SSD power sequencing, portable audio I²C control, and USB-C dock power management requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for SN74AUC1G07DBVRG4 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 decades of expertise in low-voltage logic innovation.

SN74AUC1G07DBVRG4 belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically for high-speed, ultra-low-power buffering in next-generation portable and storage systems operating below 1.8 V.

FAQ

What is the maximum operating voltage for the SN74AUC1G07DBVRG4 output pin?

The SN74AUC1G07DBVRG4 output (Y) is rated for 3.6 V maximum, enabling safe interfacing with higher-voltage buses such as 3.3-V I²C or GPIO lines while the device itself runs from 1.8 V. This 3.6-V I/O tolerance is specified under absolute maximum ratings and applies regardless of VCC level, provided output current remains within ±20 mA limits.

Does the SN74AUC1G07DBVRG4 support true bidirectional signal translation?

No - the SN74AUC1G07DBVRG4 is a unidirectional buffer with an open-drain output. It does not provide automatic direction sensing or level translation in both directions. However, its open-drain Y pin can be used in bidirectional wired-OR configurations when paired with external pull-ups, commonly applied in I²C and SMBus interfaces where the same line serves as both input and output.

How does the Ioff feature protect the SN74AUC1G07DBVRG4 during partial power-down?

The Ioff circuitry in the SN74AUC1G07DBVRG4 disables all outputs when VCC = 0 V, limiting off-state leakage to ±10 µA. This prevents current from flowing backward through the device - for example, from a live 3.3-V bus into an unpowered 1.8-V domain - thereby eliminating risk of latch-up, false triggering, or damage to upstream drivers during system sleep or hot-swap events.

Can the SN74AUC1G07DBVRG4 operate reliably at 0.9 V VCC?

Yes - the SN74AUC1G07DBVRG4 is fully specified from 0.8 V to 2.7 V VCC. At 0.9 V, it maintains functional logic operation with VIH ≈ 0.59 V and VIL ≈ 0.32 V, and delivers usable output drive (IOL ≥ 0.7 mA). Propagation delay increases to ~4.7 ns (CL = 15 pF), but remains deterministic and within datasheet limits for low-speed control applications.

Is the SN74AUC1G07DBVRG4 pin-compatible with other 5-pin SOT-23 logic buffers?

Yes - SN74AUC1G07DBVRG4 uses the standard DBV (SOT-23) 5-pin pinout: Pin 1 (NC), Pin 2 (A), Pin 3 (GND), Pin 4 (Y), Pin 5 (VCC). This matches industry-standard assignments for single-gate logic devices in SOT-23, enabling mechanical compatibility with footprints for SN74LVC1G07, SN74AUP1G07, and similar parts - though electrical behavior (e.g., Ioff, voltage range) differs.