Texas Instruments CD74HC4050NSR

Overview

CD74HC4050NSR from Texas Instruments is a non-inverting hex buffer IC designed for high-to-low voltage level translation, supporting input voltages up to 15 V while operating from a 2–6 V supply. It delivers 6 ns typical propagation delay at 5 V/15 pF, operates across –55°C to +125°C, and drives up to 15 LSTTL loads - ideal for interfacing legacy high-voltage logic with modern low-voltage microcontrollers.

For engineers reviewing the CD74HC4050NSR datasheet, CD74HC4050NSR pinout, CD74HC4050NSR application, or CD74HC4050NSR equivalent, key selection criteria include its 16-pin SOP package, rail-to-rail input tolerance (–0.5 V to 16 V), CMOS/TTL-compatible output drive, and absence of inversion in signal path - critical for bidirectional bus buffering and mixed-supply system integration.

Technical Context

The CD74HC4050NSR implements six independent non-inverting buffer channels using silicon-gate CMOS technology. Its modified input protection structure enables robust 15-V tolerant inputs without external clamping, while maintaining standard CMOS output characteristics (VOH ≥ 4.4 V, VOL ≤ 0.1 V at VCC = 4.5 V).

It operates across the full military temperature range (–55°C to +125°C) and supports dual-supply interface scenarios: high-side logic (e.g., 12 V sensors) connects to inputs, while outputs reference the local 3.3 V or 5 V domain - no level-shifting resistors or active translators required.

Key Specifications

Pinout & Package

CD74HC4050NSR uses a 16-pin SOP (Small Outline Package) with 1.27 mm pitch, JEDEC MS-012 compliant, and moisture sensitivity level 1 (260°C reflow compatible). Pin 1 is marked via laser etch or mold notch; tape-and-reel packaging uses quadrant Q1 orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-inverting buffer applications.

Compared with SN74LVC1G17DBVR and CD74HC4050M96, the CD74HC4050NSR uniquely combines six independent 15 V-tolerant inputs in a compact SOP package - delivering higher integration density and broader voltage interoperability than the single-channel LVC option, and smaller form factor than the SOIC variant.

Availability

CD74HC4050NSR is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control, and legacy bus bridging applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HC4050NSR 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 high-reliability components.

The CD74HC4050NSR belongs to TI's HC-series high-speed CMOS logic family, engineered for robust mixed-voltage system interfacing in harsh environments - particularly targeting industrial automation, automotive subsystems, and defense-grade electronics.

FAQ

What is the maximum input voltage rating for CD74HC4050NSR?

The CD74HC4050NSR supports an absolute maximum input voltage of –0.5 V to 16 V, as specified in its Absolute Maximum Ratings table. This allows direct connection to 12 V or 15 V logic sources without external clamping. Operation above 16 V risks permanent damage, and inputs below –0.5 V may activate internal diodes. The CD74HC4050NSR maintains full functionality within this range across its entire –55°C to +125°C operating temperature span.

Can CD74HC4050NSR be used as a level shifter between 12 V and 3.3 V logic domains?

Yes, the CD74HC4050NSR is explicitly designed for high-to-low voltage level translation. With 15 V-tolerant inputs and outputs referenced to a 3.3 V VCC, it converts 12 V signals to clean 0–3.3 V logic levels. No external resistors or power supplies are needed - the CD74HC4050NSR handles the translation internally via its modified input protection structure, making it ideal for interfacing legacy 12 V peripherals with modern 3.3 V microcontrollers.

Does CD74HC4050NSR invert the input signal?

No, the CD74HC4050NSR is a non-inverting hex buffer. Each of its six channels passes the input signal to the corresponding output with identical polarity - a logic HIGH on input 1A produces a HIGH on output 1Y, and likewise for all other pairs. This distinguishes it from the CD74HC4049 (inverting version); the CD74HC4050NSR is selected specifically when signal polarity preservation is required in bus buffering or control line routing.

What is the package type and dimensions of CD74HC4050NSR?

The CD74HC4050NSR uses a 16-pin SOP (Small Outline Package) with JEDEC MS-012 outline, 1.27 mm lead pitch, and body dimensions of 10.2 mm × 5.3 mm × 1.75 mm (L × W × H). It is supplied in tape-and-reel format (2000 units per reel), MSL Level-1 rated for 260°C reflow, and features NIPDAU lead finish. Pin 1 orientation follows quadrant Q1 per TI's tape specification.

Is CD74HC4050NSR suitable for automotive under-hood applications?

Yes, the CD74HC4050NSR is qualified for operation from –55°C to +125°C and meets TI's automotive-grade reliability standards for plastic packages. Its wide temperature range, 15 V input tolerance, and robust ESD protection make it suitable for under-hood applications such as engine control module I/O conditioning, battery monitoring interfaces, and body control unit wake-up signal routing - provided board-level thermal design maintains junction temperature below 150°C.