Texas Instruments SN74LV07ANSR

Overview

SN74LV07ANSR 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 in positive polarity, supports mixed-mode voltage translation (e.g., 3.3-V input to 5-V bus), sinks up to 16 mA per output at 5 V, and features I_off for partial power-down protection. It is used in server backplane level-shifting and telecom infrastructure bus interfaces.

For engineers reviewing the SN74LV07ANSR datasheet, SN74LV07ANSR pinout, SN74LV07ANSR application, or SN74LV07ANSR equivalent, key selection criteria include open-drain drive capability, 5.5-V input/output tolerance, I_off current limiting during power sequencing, and SOP-14 package compatibility with legacy board layouts.

Technical Context

The SN74LV07ANSR implements six independent non-inverting buffers, each with an open-drain output stage enabling wired-OR logic and level translation across voltage domains. Its inputs tolerate voltages up to 5.5 V regardless of V_CC, and its outputs support pull-up to any rail ≤5.5 V.

It incorporates I_off circuitry that disables all outputs when V_CC = 0 V, preventing back-current flow and ensuring safe hot-insertion in powered-backplane systems. Latch-up performance exceeds 100 mA per JESD 78 Class II.

Key Specifications

Pinout & Package

SOP-14 package (10.30 mm × 5.30 mm body size, 1.75 mm max height), surface-mount, gull-wing leads, RoHS-compliant NIPDAU finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV07ANSR, SN74LVC07APWR offers higher drive strength but mandates TSSOP-14 layout change, while 74AHC1G07SE-7 provides identical voltage range in minimal footprint but requires six devices to match channel count-making SN74LV07ANSR optimal for cost- and area-sensitive multi-signal buffering.

Availability

SN74LV07ANSR is available at Aetrix Electronics and suitable for server backplane interfaces, telecom line card control, and industrial PLC I/O expansion requiring stable component supply and long-term industrial temperature support (–40°C to 125°C).

Supply support for SN74LV07ANSR 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 over 90 years of innovation in industrial, automotive, and communications markets.

The SN74LV07ANSR belongs to TI's LV logic family, engineered for low-voltage operation with high noise immunity and mixed-signal interoperability-targeting applications demanding robust level translation and power-aware design.

FAQ

What is the maximum sink current per output of the SN74LV07ANSR?

The SN74LV07ANSR supports up to 16 mA sink current per output when V_CC = 5 V, as specified in the Electrical Characteristics table under I_OL. At lower V_CC values (e.g., 3.3 V), the guaranteed minimum is 8 mA. Exceeding these limits risks exceeding absolute maximum ratings and may degrade reliability or cause thermal shutdown in sustained operation.

Does the SN74LV07ANSR support level translation between different voltage domains?

Yes, the SN74LV07ANSR supports bidirectional level translation: its inputs tolerate voltages 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 can accept 5-V inputs and drive a 5-V bus via external pull-up-enabling seamless interfacing between 3.3-V MCUs and 5-V peripherals in the SN74LV07ANSR design.

What is the purpose of the I_off feature in the SN74LV07ANSR?

The I_off feature in the SN74LV07ANSR disables all outputs when V_CC = 0 V, limiting I_off current to 5 µA maximum. This prevents damaging back-current flow from live I/O lines into the unpowered device-a critical safeguard during hot-swap operations, power sequencing, or partial system shutdown. The SN74LV07ANSR maintains this behavior across its full –40°C to 125°C operating range.

Can unused inputs on the SN74LV07ANSR be left floating?

No, unused inputs on the SN74LV07ANSR must be tied to either V_CC or GND to prevent undefined logic states and potential increased ICC or oscillation. TI's datasheet explicitly requires this in Section 7.3. Floating inputs may cause excessive current draw or erratic output behavior. For the SN74LV07ANSR, tying unused A-inputs to V_CC ensures stable high-level output disable, while tying to GND forces low-level output enable-both valid depending on system intent.

What package type does the SN74LV07ANSR use, and what are its key mechanical dimensions?

The SN74LV07ANSR uses the SOP-14 package (orderable code NS), with nominal body dimensions of 10.30 mm × 5.30 mm and maximum height of 1.75 mm. It features gull-wing leads, RoHS-compliant NIPDAU plating, and MSL Level-1 rating for unlimited floor life at ≤30°C/60% RH. This package is pin-compatible with legacy SOIC-14 footprints but has wider lead pitch (1.27 mm) and longer body than standard SOIC (D), requiring verification against IPC-7351 land patterns.