Texas Instruments SN74AUC1G07DCKT

Overview

SN74AUC1G07DCKT 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 10-µA max ICC. It enables wired-OR logic in low-voltage I²C, SMBus, and power sequencing circuits.

For engineers reviewing the SN74AUC1G07DCKT datasheet, SN74AUC1G07DCKT pinout, SN74AUC1G07DCKT application, or SN74AUC1G07DCKT equivalent, key selection criteria include open-drain compatibility with mixed-voltage systems, sub-1-V operability, I_off partial-power-down support, and SC70-5 package footprint constraints.

Technical Context

This device implements a noninverting buffer with open-drain output, requiring an external pull-up resistor to define high-level voltage. Its I_off circuitry disables outputs during power-down to prevent back-drive current, enabling safe use in hot-swap and partial-power-down architectures.

Designed for sub-1-V to 2.7-V operation, it meets JESD 78 Class II latch-up performance (>100 mA) and exceeds JESD 22 ESD ratings (2000-V HBM, 200-V MM, 1000-V CDM), making it suitable for portable and space-constrained embedded interfaces.

Key Specifications

Pinout & Package

SN74AUC1G07DCKT uses the SC70-5 (DCK) package: 2.00 mm × 1.25 mm body, 0.65-mm pitch, 1.1-mm max height, 5-pin surface-mount outline with pin 1 index marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07DCKT and NC7SZ07P5X, SN74AUC1G07DCKT uniquely supports sub-1-V operation and includes I_off for robust partial-power-down - critical for next-gen portable and modular electronics where voltage scaling and hot-plug safety are mandatory.

Availability

SN74AUC1G07DCKT is available at Aetrix Electronics and suitable for power sequencing control, I²C bus buffering, hot-swappable module interface, and low-power GPIO expansion requiring stable component supply across consumer, industrial, and computing applications.

Supply support for SN74AUC1G07DCKT 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.

The SN74AUC1G07DCKT belongs to TI's AUC Sub-1-V Little Logic family, designed specifically for ultra-low-voltage signal conditioning, bus isolation, and power-aware system control in portable and energy-sensitive electronics.

FAQ

What is the minimum supply voltage at which SN74AUC1G07DCKT remains functional?

SN74AUC1G07DCKT operates down to 0.8 V V_CC, verified per its Recommended Operating Conditions table. At this voltage, it delivers guaranteed logic functionality with I_OL = 0.7 mA and t_pd ≤ 4.7 ns (CL = 15 pF). This sub-1-V capability makes SN74AUC1G07DCKT suitable for emerging ultra-low-power microcontroller IO domains and energy-harvesting subsystems where traditional 1.2-V logic fails.

Does SN74AUC1G07DCKT support hot-swap or partial-power-down scenarios?

Yes. SN74AUC1G07DCKT integrates I_off circuitry that actively disables its output when V_CC = 0, preventing damaging back-current flow into powered-down sections. This feature is explicitly validated in the datasheet's Electrical Characteristics table (I_off = ±10 µA) and enables safe use in hot-pluggable modules, multi-rail power sequencers, and systems with staggered power domains - all without external protection components.

Can SN74AUC1G07DCKT interface directly with 3.3-V pull-up resistors?

Yes. SN74AUC1G07DCKT features 3.6-V I/O tolerance on its open-drain Y output and input A, allowing direct connection to 3.3-V (or 2.5-V) pull-up resistors while operating at 1.8 V V_CC. This eliminates the need for external level shifters in mixed-voltage I²C, SMBus, or reset-line applications - confirmed by Absolute Maximum Ratings (VO = –0.5 V to 3.6 V) and Recommended Operating Conditions (VI = 0 to 3.6 V).

What is the maximum output sink current SN74AUC1G07DCKT can deliver at 1.8 V?

At 1.8 V V_CC, SN74AUC1G07DCKT guarantees ±8 mA output sink current (I_OL) with VOL ≤ 0.45 V, as specified in the Electrical Characteristics table. This drives standard 10-kΩ pull-ups to <0.45 V under full load - sufficient for I²C Fast Mode (400 kHz) and general-purpose active-low signaling. The device also supports up to ±20 mA absolute maximum continuous output current per Absolute Maximum Ratings.

Is SN74AUC1G07DCKT compatible with standard SC70-5 PCB footprints and reflow profiles?

Yes. SN74AUC1G07DCKT uses the industry-standard SC70-5 (DCK) package with 0.65-mm pitch, 2.00 mm × 1.25 mm body, and MSL Level-1 rating (260°C peak reflow). Its mechanical drawing (DCK0005A) matches IPC-7351 generic SC70-5 land patterns, and the device is qualified for standard lead-free reflow per JEDEC J-STD-020. Aetrix Electronics supplies fully traceable, RoHS-compliant SN74AUC1G07DCKT reels meeting TI's shipping and handling specifications.