Texas Instruments SN74AUC1G07YZPR

Overview

SN74AUC1G07YZPR from Texas Instruments is a single open-drain buffer/driver IC optimized for 1.8-V operation, supporting 0.8-V to 2.7-V V_CC, with 2.5-ns max propagation delay at 1.8 V, ±8-mA output drive, and I_off partial-power-down protection. It enables wired-OR logic in low-voltage portable audio and SSD power sequencing.

For engineers reviewing the SN74AUC1G07YZPR datasheet, SN74AUC1G07YZPR pinout, SN74AUC1G07YZPR application, or SN74AUC1G07YZPR equivalent, key selection criteria include sub-1-V operability, 3.6-V I/O tolerance for mixed-mode interfacing, NanoFree™ DSBGA packaging, and latch-up immunity exceeding 100 mA per JESD 78 Class II.

Technical Context

This device implements a noninverting buffer with open-drain output, requiring an external pull-up resistor to define high-level logic states. Its I_off circuitry actively disables outputs during power-down, preventing back-drive current and enabling safe hot-insertion in multi-rail systems.

Designed for sub-1-V to 2.7-V operation, it delivers consistent timing performance across supply voltages - t_pd = 2.5 ns (max) at 1.8 V with 15-pF load - and supports active-low wired-OR and active-high wired-AND bus configurations via shared open-drain topology.

Key Specifications

Pinout & Package

The SN74AUC1G07YZPR uses a 5-ball DSBGA (YZP) package measuring 1.75 mm × 1.25 mm with 0.5-mm pitch, leveraging NanoFree™ technology where the die serves as the package. Ball assignment follows bottom-view orientation with pin 1 at A1 corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07YZPR and NC7SZ07P5X, the SN74AUC1G07YZPR uniquely supports 0.8-V operation and delivers the fastest propagation delay in its voltage class, making it optimal for energy-harvesting sensors and always-on subsystems where every nanosecond and millivolt matters.

Availability

SN74AUC1G07YZPR is available at Aetrix Electronics and suitable for USB OTG power control, SSD power sequencing, portable audio I²C expansion, embedded PC fan speed control, and wireless headset interface design requiring stable component supply across industrial and consumer production cycles.

Supply support for SN74AUC1G07YZPR 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 interface ICs and advanced packaging.

The SN74AUC1G07YZPR belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically for ultra-low-voltage signal buffering and bus interface in portable, battery-powered, and energy-efficient systems.

FAQ

What is the minimum operating voltage for the SN74AUC1G07YZPR?

The SN74AUC1G07YZPR operates down to 0.8 V V_CC, confirmed in Section 6.3 (Recommended Operating Conditions) of the official datasheet. This sub-1-V capability enables direct use with emerging ultra-low-power rails such as those found in energy-harvesting sensor nodes and always-on wake-up circuits. The SN74AUC1G07YZPR maintains full functionality-including specified t_pd and I_OL-across the entire 0.8-V to 2.7-V range.

Does the SN74AUC1G07YZPR support hot-swap or partial-power-down operation?

Yes, the SN74AUC1G07YZPR integrates I_off circuitry that disables outputs when V_CC = 0 V, limiting I_off to ±10 µA maximum per Section 6.5. This prevents damaging back-current flow during hot-insertion or partial-power-down events, making the SN74AUC1G07YZPR suitable for modular systems like docking stations and field-replaceable SSD modules where subsystems power up/down independently.

Can the SN74AUC1G07YZPR interface directly with 3.3-V logic?

Yes, the SN74AUC1G07YZPR features 3.6-V I/O tolerance on all inputs and outputs, explicitly stated in the "Features" section and validated in Absolute Maximum Ratings (Section 6.1). This allows the SN74AUC1G07YZPR to safely accept 3.3-V input signals and drive 3.3-V pull-up networks without external level shifters-ideal for mixed-voltage systems such as embedded PCs interfacing with legacy peripherals.

What is the purpose of the NC (no-connect) ball on the SN74AUC1G07YZPR?

The NC ball (A1 position) on the SN74AUC1G07YZPR is an unconnected die pad with no internal bond wire or circuit connection. As documented in the Pin Functions table (Section 5), it may be left floating, grounded, or used as a mechanical fiducial-TI confirms no electrical impact regardless of PCB treatment. This differs from DNU (Do Not Use) pins, which must remain unpopulated; the NC ball poses no reliability risk if soldered.

How does the open-drain output of the SN74AUC1G07YZPR enable wired-OR logic?

The SN74AUC1G07YZPR's Y output is open-drain, meaning it can only pull low or float high. When multiple SN74AUC1G07YZPR outputs share a common pull-up resistor, the net line goes low if any device asserts - implementing active-low wired-OR. This is explicitly described in the "Description" section and used in applications like interrupt aggregation and bus arbitration. No additional components beyond the shared pull-up are required to realize this function.