Texas Instruments SN74LVC2G07DCKRE4

Overview

SN74LVC2G07DCKRE4 from Texas Instruments is a dual open-drain buffer IC designed for level translation and wired-OR logic implementation in 1.65-V to 5.5-V systems. It features two independent open-drain outputs capable of sinking up to 32 mA at 4.5 V, supports 5.5-V-tolerant inputs, and delivers 3.7 ns max propagation delay at 3.3 V - enabling use in I²C bus buffering, LED driving, and mixed-voltage interface isolation.

For engineers reviewing the SN74LVC2G07DCKRE4 datasheet, SN74LVC2G07DCKRE4 pinout, SN74LVC2G07DCKRE4 application, or SN74LVC2G07DCKRE4 equivalent, this device is selected for low-power, high-sink-current open-drain interfacing where voltage translation (e.g., 1.8-V MCU to 3.3-V peripheral) and partial-power-down robustness via Ioff are required.

Technical Context

The SN74LVC2G07DCKRE4 implements two non-inverting open-drain buffers with independent inputs (1A, 2A) and outputs (1Y, 2Y), requiring external pull-up resistors to define high-level output states. Its Ioff circuitry actively disables outputs during power-down, blocking back-drive current and supporting live insertion in hot-swap systems.

Input voltage tolerance up to 5.5 V enables bidirectional level translation across supply domains (e.g., 1.8-V input driving 5-V bus), while its 10-μA max ICC and 3.5-pF typical input capacitance minimize dynamic loading on driving sources - critical for high-speed, low-noise digital interfaces.

Key Specifications

Pinout & Package

SN74LVC2G07DCKRE4 is packaged in a 6-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for space-constrained portable and embedded applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G07DCKRE4, SN74LVC1G07DCKR offers functional equivalence per channel but doubles component count for dual functionality, while NC7WZ07P6X trades Ioff and pin compatibility for marginally lower cost - making SN74LVC2G07DCKRE4 optimal for space-constrained, hot-swap-critical dual-buffer designs.

Availability

SN74LVC2G07DCKRE4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, I²C bus extension, wearable LED driving, and hot-swap power sequencing requiring stable component supply and long-term lifecycle support.

Supply support for SN74LVC2G07DCKRE4 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 and embedded processing technologies, with decades of expertise in logic, interface, and power management ICs.

The SN74LVC2G07DCKRE4 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for low-voltage operation, high noise immunity, and seamless voltage translation in portable, industrial, and communications equipment.

FAQ

What is the maximum sink current supported by SN74LVC2G07DCKRE4 at 3.3 V?

The SN74LVC2G07DCKRE4 supports a maximum sink current of 24 mA at VCC = 3.3 V while maintaining VOL ≤ 0.55 V, as specified in the Electrical Characteristics table under IOL test conditions. This rating ensures reliable operation with standard 3.3-V pull-up configurations and moderate capacitive loads.

Does SN74LVC2G07DCKRE4 support level translation between 1.8-V and 5-V logic domains?

Yes, SN74LVC2G07DCKRE4 supports bidirectional level translation: its inputs tolerate up to 5.5 V regardless of VCC, and its open-drain outputs can be pulled up to any voltage ≤ 5.5 V. When powered from 1.8 V, it can safely interface with 5-V peripherals - provided the pull-up resistor connects to the 5-V rail.

Is SN74LVC2G07DCKRE4 pin-compatible with other SC70-6 open-drain buffers?

No - SN74LVC2G07DCKRE4 uses TI's standard SC70-6 pinout (1A-GND-2A-2Y-VCC-1Y). It is not pin-compatible with ON Semiconductor's NC7WZ07P6X (VCC-GND-1A-1Y-2A-2Y) or Diodes Inc.'s AZ1013-02WR (different pin assignment), requiring PCB layout verification before substitution.

How does the Ioff feature of SN74LVC2G07DCKRE4 protect the system during partial power-down?

The Ioff circuitry in SN74LVC2G07DCKRE4 disables both outputs when VCC = 0 V, limiting input/output leakage to ±10 μA. This prevents back-driving current from live inputs into a powered-down section - critical for hot-swap modules, battery-backed subsystems, and multi-rail FPGAs where rail sequencing is asynchronous.

What is the typical propagation delay of SN74LVC2G07DCKRE4 at 25°C and 3.3-V supply?

The typical propagation delay (tpd) of SN74LVC2G07DCKRE4 is 2.9 ns at VCC = 3.3 V ± 0.3 V and TA = 25°C, with a guaranteed maximum of 3.7 ns across –40°C to 85°C. This low latency supports clean signal integrity in high-speed digital control loops and timing-critical I/O expansion.