Texas Instruments SN74LVC3G07DCUR

Overview

SN74LVC3G07DCUR from Texas Instruments is a triple non-inverting buffer/driver with open-drain outputs, designed for 1.65-V to 5.5-V VCC operation. It delivers 3.7 ns max propagation delay at 3.3 V, ±24-mA output sink drive, and supports Ioff partial-power-down protection. It is used in level-shifting, wired-OR logic, and bus interface applications where voltage translation and current-sinking capability are required.

For engineers reviewing the SN74LVC3G07DCUR datasheet, SN74LVC3G07DCUR pinout, SN74LVC3G07DCUR application, or SN74LVC3G07DCUR equivalent, key selection considerations include open-drain output compatibility with 5.5-V tolerant inputs, Ioff-enabled live insertion support, thermal performance in VSSOP packaging, and verified 32-mA max sink capability per channel under 4.5-V VCC.

Technical Context

This device implements three independent non-inverting buffers, each with an open-drain output stage enabling wired-OR logic and level translation across mixed-voltage domains. Its Ioff circuitry actively disables outputs during power-down, preventing back-drive current when VCC = 0 V.

The SN74LVC3G07DCUR operates across –40°C to +125°C, supports input voltages up to 5.5 V regardless of VCC level, and maintains guaranteed VOL ≤ 0.75 V at IOL = 24 mA (VCC = 3 V) and ≤ 0.75 V at IOL = 32 mA (VCC = 4.5 V).

Key Specifications

Pinout & Package

VSSOP (DCU) package: 8-pin, 2.1 mm × 1.9 mm body, 0.5-mm pitch, 0.9-mm max height, exposed pad not present, pin 1 marked by index area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G07DCT3 and SN74LVC3G07YZPR, the SN74LVC3G07DCUR offers the optimal balance of compact VSSOP size (2.1 mm × 1.9 mm), extended temperature rating (–40°C to +125°C), and industry-standard thermal resistance (θJA = 227°C/W), making it the preferred choice for thermally demanding industrial and automotive control modules.

Availability

SN74LVC3G07DCUR is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C level translation, LED status indication, hot-swappable module control, and embedded power management requiring stable component supply across extended temperature ranges.

Supply support for SN74LVC3G07DCUR 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 connectivity technologies, with over 50 years of innovation in high-reliability IC design.

The SN74LVC3G07DCUR belongs to TI's LVC logic family, engineered for low-voltage, high-speed, mixed-supply system interfacing - particularly targeting industrial automation, test equipment, and automotive subsystems requiring robust open-drain drivers.

FAQ

What is the maximum sink current supported by SN74LVC3G07DCUR per output channel?

The SN74LVC3G07DCUR supports up to 32 mA sink current per output (IOL) when VCC = 4.5 V, as specified in the Recommended Operating Conditions table. At VCC = 3 V, it guarantees 24 mA, and at VCC = 2.3 V, 8 mA. This enables direct driving of LEDs, relays, or MOSFET gates without external amplification. The SN74LVC3G07DCUR maintains VOL ≤ 0.75 V under these conditions.

Does SN74LVC3G07DCUR support level translation between different supply voltages?

Yes, the SN74LVC3G07DCUR supports bidirectional level translation via its 5.5-V tolerant inputs and open-drain outputs. Inputs accept voltages up to 5.5 V regardless of VCC level (1.65–5.5 V), allowing a 3.3-V-powered SN74LVC3G07DCUR to safely receive 5-V logic signals. Outputs require external pull-up to the target voltage domain, enabling translation from low-VCC logic to higher-voltage buses.

Can SN74LVC3G07DCUR be used in hot-swap applications?

Yes, the SN74LVC3G07DCUR includes Ioff circuitry that disables outputs and limits leakage to ±10 μA when VCC = 0 V, preventing damaging back-current flow during live insertion or partial power-down. This feature makes the SN74LVC3G07DCUR suitable for hot-swap controllers, modular backplanes, and field-replaceable units where power sequencing is uncontrolled.

What is the propagation delay of SN74LVC3G07DCUR at 3.3-V operation?

The SN74LVC3G07DCUR has a maximum propagation delay (tpd) of 3.7 ns at VCC = 3.3 V, TA = –40°C to +125°C, as specified in the Switching Characteristics table. Typical tpd is 1.1 ns under the same conditions. This performance supports high-speed digital interfacing in compact timing-critical paths, including sensor data handshaking and real-time control loops.

Which package type does SN74LVC3G07DCUR use, and what are its mechanical dimensions?

The SN74LVC3G07DCUR uses the VSSOP (DCU) package: 8-pin, 2.1 mm × 1.9 mm body size, 0.5-mm lead pitch, and 0.9-mm maximum height. Pin 1 is identified by an index area on the top surface. The package complies with JEDEC MO-187 variation CA and is optimized for space-constrained PCB layouts while maintaining standard reflow compatibility (MSL Level-1, 260°C peak).