Texas Instruments SN74LVC2G07DBVR

Overview

SN74LVC2G07DBVR from Texas Instruments is a dual open-drain buffer IC designed for level translation and wired-OR logic functions in 1.65-V to 5.5-V systems. It delivers 32-mA sink current per output, supports 5.5-V tolerant inputs, and achieves 3.7-ns propagation delay at 3.3 V - enabling robust I²C bus buffering, LED driving, and mixed-voltage interface isolation.

For engineers reviewing the SN74LVC2G07DBVR datasheet, SN74LVC2G07DBVR pinout, SN74LVC2G07DBVR application, or SN74LVC2G07DBVR equivalent, key selection criteria include open-drain drive capability, Ioff partial-power-down support, 5.5-V input tolerance, and SOT-23 (DBV) package compatibility with high-density PCB layouts.

Technical Context

The SN74LVC2G07DBVR implements two independent non-inverting open-drain buffers, each requiring external pull-up resistors to define logic-high voltage levels. Its Ioff circuitry actively disables outputs during power-down, blocking back-drive current and enabling live insertion in hot-swap systems.

Input voltage tolerance up to 5.5 V allows interfacing with legacy 5-V logic while operating from 1.65–5.5-V VCC. The device's VOL ≤ 0.55 V at 24 mA (3.3 V) and tpd ≤ 3.7 ns (3.3 V, –40°C to 85°C) confirm its suitability for timing-critical bidirectional bus applications such as SMBus and GPIO expansion.

Key Specifications

Pinout & Package

SOT-23 (DBV) package: 6-pin surface-mount, 2.90 mm × 1.60 mm body size, tape-and-reel (3000 pcs), RoHS-compliant, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G07DBVR and NC7WZ07P6X, the SN74LVC2G07DBVR uniquely balances dual-channel functionality, 32-mA sink strength, and 3.7-ns speed in the industry-standard SOT-23 footprint - making it optimal for space-constrained, mixed-voltage embedded interfaces requiring reliability and scalability.

Availability

SN74LVC2G07DBVR is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C bus extension, LED status indication, and GPIO expansion requiring stable component supply across automotive, medical, and industrial production cycles.

Supply support for SN74LVC2G07DBVR 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 90 years of innovation in industrial, automotive, and consumer electronics.

The SN74LVC2G07DBVR belongs to TI's LVC logic family - engineered for low-voltage operation, high noise immunity, and seamless voltage translation across heterogeneous digital subsystems.

FAQ

What is the maximum sink current supported by SN74LVC2G07DBVR at 3.3 V?

The SN74LVC2G07DBVR supports up to 24 mA sink current per output at 3.3 V while maintaining VOL ≤ 0.55 V, as specified in the Electrical Characteristics table (IOL = 24 mA, VCC = 3 V). This rating ensures reliable operation with standard 4.7-kΩ pull-up resistors on 3.3-V I²C buses.

Does SN74LVC2G07DBVR support partial power-down functionality?

Yes, SN74LVC2G07DBVR includes Ioff circuitry that disables outputs when VCC = 0 V, limiting Ioff to ±10 μA. This feature prevents damaging back-current flow during hot-swap or multi-rail power sequencing - critical for systems with independent domain power management.

Can SN74LVC2G07DBVR be used for level translation between 5-V and 3.3-V logic?

Yes, SN74LVC2G07DBVR accepts input voltages up to 5.5 V regardless of VCC, enabling direct connection to 5-V sources. When powered from 3.3 V, its open-drain outputs interface cleanly with 5-V pull-ups - supporting both up-translation (3.3-V input → 5-V output) and down-translation (5-V input → 3.3-V domain).

What is the propagation delay of SN74LVC2G07DBVR at 5 V?

At VCC = 5 V and TA = –40°C to 85°C, the SN74LVC2G07DBVR has a maximum propagation delay (tpd) of 2.9 ns, as specified in the Switching Characteristics table. This ultra-low latency supports high-speed digital control loops and real-time peripheral handshaking.

Is SN74LVC2G07DBVR compatible with standard SOT-23 footprints?

Yes, SN74LVC2G07DBVR uses the DBV package - a standard 6-pin SOT-23 variant with 2.90 mm × 1.60 mm body size and Q3 pin-1 quadrant orientation. It is mechanically and solder-reflow compatible with industry-standard SOT-23 land patterns and pick-and-place tooling.