Texas Instruments SN74AUC1G07DCKR

Overview

SN74AUC1G07DCKR from Texas Instruments is a single non-inverting buffer/driver with open-drain output, designed for 1.65-V to 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, and supports partial power-down via Ioff. It is used in portable audio interfaces and SSD control logic where level-shifting and wired-AND bus interfacing are required.

For engineers reviewing the SN74AUC1G07DCKR datasheet, SN74AUC1G07DCKR pinout, SN74AUC1G07DCKR application, or SN74AUC1G07DCKR equivalent, key selection criteria include open-drain compatibility with 1.8-V systems, sub-1-V operability, Ioff-enabled back-drive protection, and SC70-5 package footprint constraints.

Technical Context

The SN74AUC1G07DCKR implements a single-channel positive-logic buffer with open-drain output stage, enabling active-low wired-OR or active-high wired-AND bus configurations when connected to other open-drain devices. Its Ioff circuitry actively disables outputs during power-down to prevent current backflow.

It operates across 0.8-V to 2.7-V VCC, with guaranteed performance from 1.65 V to 1.95 V. Input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), and it maintains 3.6-V I/O tolerance-allowing interoperability with higher-voltage logic domains without external level shifters.

Key Specifications

Pinout & Package

SN74AUC1G07DCKR is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for space-constrained portable designs. The package uses standard JEDEC SC70-5 footprint with pin 1 in quadrant Q3 per tape-and-reel orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07DCKR and 74AUP1G07GW,125, the SN74AUC1G07DCKR uniquely combines sub-1-V functionality, ±8-mA drive, and 2.5-ns speed - making it optimal for next-generation portable storage and audio SoC interconnects where voltage scaling and timing density are critical.

Availability

SN74AUC1G07DCKR is available at Aetrix Electronics and suitable for SSD command interfaces, portable audio level shifting, embedded PC power sequencing, and tablet system management bus applications requiring stable component supply and long-term industrial availability.

Supply support for SN74AUC1G07DCKR 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 for industrial, automotive, and consumer markets.

The SN74AUC1G07DCKR belongs to TI's AUC Sub-1-V Little Logic family, engineered for ultra-low-voltage operation and high-speed signal integrity in space-constrained portable electronics.

FAQ

What is the minimum operating voltage for the SN74AUC1G07DCKR?

The SN74AUC1G07DCKR is fully operational down to 0.8 V VCC, with guaranteed specifications over 1.65 V to 1.95 V. This sub-1-V capability enables use in advanced low-power domains such as retention logic and battery-backed subsystems where traditional logic families fail. The SN74AUC1G07DCKR maintains functional behavior-including Ioff activation and open-drain output control-even at 0.8 V, as confirmed in TI's SCES373R datasheet Section 6.3.

Does the SN74AUC1G07DCKR support 3.3-V I/O interfacing?

Yes, the SN74AUC1G07DCKR supports 3.6-V I/O tolerance on both input and output pins, allowing safe connection to 3.3-V systems while powered from 1.8 V. This eliminates external level shifters in mixed-voltage designs. The SN74AUC1G07DCKR achieves this through robust gate oxide design and clamping structures validated per JESD 22-A114 (2000-V HBM). Input and output voltage ratings remain valid up to 3.6 V regardless of VCC setting.

How does the Ioff feature protect the SN74AUC1G07DCKR during partial power-down?

The Ioff circuitry in the SN74AUC1G07DCKR disables both input and output buffers when VCC = 0 V, limiting leakage to ±10 µA and preventing damaging back-current flow from powered I/O lines into the unpowered device. This protects upstream drivers and downstream loads during sleep or hot-swap events. The SN74AUC1G07DCKR implements this via dedicated power-gating transistors that isolate all signal paths-verified in Section 3 of the datasheet and tested per JESD 78 Class II latch-up standards.

What is the maximum output drive capability of the SN74AUC1G07DCKR at 1.8 V?

At 1.8 V VCC, the SN74AUC1G07DCKR delivers ±8 mA output sink/source current under specified conditions (IOL test per Section 6.5), enabling direct drive of 15-pF loads with VOL ≤ 0.45 V. This drive strength supports reliable wired-AND bus operation with up to three parallel SN74AUC1G07DCKR outputs and standard 10-kΩ pull-ups. The value is measured and guaranteed-not typical-and applies across the full –40°C to +85°C temperature range.

Which package type does the SN74AUC1G07DCKR use, and what are its dimensions?

The SN74AUC1G07DCKR uses the SC70-5 (DCK) package: a 5-pin surface-mount outline measuring 2.00 mm × 1.25 mm with 0.65-mm pitch and maximum height of 1.1 mm. Its footprint matches JEDEC MO-203, and pin 1 is located in quadrant Q3 per tape-and-reel orientation. The SN74AUC1G07DCKR leverages TI's NanoFree™ technology-using the silicon die directly as the package-to minimize parasitic inductance and reduce board area by >30% versus SOT-23 alternatives.