Texas Instruments SN74LV07AD

Overview

SN74LV07AD from Texas Instruments is a hex buffer/driver IC with open-drain outputs, designed for 2-V to 5.5-V V_CC operation. It performs Y = A logic (non-inverting), supports mixed-mode voltage translation, features I_off power-down protection, and delivers up to 16 mA sink current at 5 V - used in bus interface, LED driving, and wired-OR logic circuits.

For engineers reviewing the SN74LV07AD datasheet, SN74LV07AD pinout, SN74LV07AD application, or SN74LV07AD equivalent, key selection criteria include open-drain output drive capability, 5.5-V input/output tolerance, I_off functionality for partial power-down systems, and SOIC-14 package compatibility with legacy 5-V/3.3-V mixed-signal designs.

Technical Context

The SN74LV07AD implements six independent non-inverting buffers, each with an open-drain output stage enabling wired-AND/wired-OR configurations. Its I_off circuitry actively disables outputs when V_CC = 0 V, preventing back-current flow during power sequencing.

All inputs tolerate voltages up to 5.5 V regardless of V_CC level (2 V–5.5 V), supporting voltage-level translation between 2.5-V, 3.3-V, and 5-V CMOS domains. Propagation delay ranges from 3.4 ns to 10.4 ns (V_CC = 5 V / 2.5 V, C_L = 15 pF), with guaranteed operation from –40°C to +125°C.

Key Specifications

Pinout & Package

SN74LV07AD is packaged in a 14-pin SOIC (D) body measuring 8.65 mm × 3.91 mm, with 1.27-mm lead pitch and 1.75-mm maximum height. The package is RoHS-compliant, lead-finished with NiPdAu, and rated MSL Level-1 (unlimited floor life).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV07AD, SN74LVC2G07DCUR offers density and efficiency at the cost of voltage flexibility, while MC74LCX07DR2 trades I_off safety for higher drive - making SN74LV07AD the optimal balance for industrial mixed-voltage control interfaces.

Availability

SN74LV07AD is available at Aetrix Electronics and suitable for industrial bus interface, LED status indication, wired-AND logic, and mixed-signal system reset coordination requiring stable component supply across extended temperature and mixed-voltage operating conditions.

Supply support for SN74LV07AD 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 communications markets.

The SN74LV07AD belongs to TI's LV-A logic family, engineered for robust mixed-voltage interoperability and safe partial-power-down operation in industrial control and infrastructure equipment.

FAQ

What is the maximum sink current per output of the SN74LV07AD?

The SN74LV07AD supports up to 16 mA sink current per output when V_CC = 5 V, as specified in the Electrical Characteristics table (I_OL = 16 mA, V_OL ≤ 0.55 V). At lower V_CC levels, the drive capability scales down - e.g., 8 mA at 3 V and 2 mA at 2.3 V. This rating assumes proper PCB layout and thermal management to maintain junction temperature within limits.

Does the SN74LV07AD support voltage translation between 3.3-V and 5-V logic domains?

Yes, the SN74LV07AD supports bidirectional voltage translation: its inputs tolerate up to 5.5 V regardless of V_CC, and its open-drain outputs can be pulled up to any voltage ≤5.5 V. For example, with V_CC = 3.3 V, it accepts 5-V inputs and drives a 5-V pull-up network - enabling seamless interfacing between 3.3-V microcontrollers and 5-V peripherals without external level shifters.

What does the I_off feature do in the SN74LV07AD?

The I_off feature in the SN74LV07AD disables all outputs when V_CC = 0 V, limiting leakage current to ≤5 µA. This prevents damaging back-current flow through the device during power-down, hot insertion, or asymmetric power sequencing - a critical requirement in modular systems like telecom line cards or industrial backplanes where subsystems power up/down independently.

Can unused inputs on the SN74LV07AD be left floating?

No, unused inputs on the SN74LV07AD must be tied to either V_CC or GND. Floating CMOS inputs cause undefined logic states, increased power consumption, and potential oscillation due to noise susceptibility. TI's application report SCBA004 explicitly recommends biasing all unused inputs to a valid logic level - typically V_CC for this non-inverting buffer to ensure predictable high-Z output behavior.

Is the SN74LV07AD pin-compatible with other 14-pin hex buffer families?

The SN74LV07AD shares the same SOIC-14 pinout (D package) and functional mapping as industry-standard hex open-drain buffers including SN74LS07 and SN74HC07, but differs electrically: it operates down to 2 V, tolerates 5.5-V inputs, and includes I_off. While mechanical pin alignment matches, direct substitution requires verification of V_CC, drive strength, and power-down behavior - especially in mixed-voltage or hot-swap designs.