onsemi MC74LVX50DR2

Overview

MC74LVX50DR2 from onsemi is a hex non-inverting buffer IC designed for level-shifting and noise-immune signal distribution in mixed-voltage systems. It features six independent buffer channels, operates from 2.0 V to 3.6 V, delivers 4.1 ns typical propagation delay at 3.3 V, supports 5.5 V-tolerant inputs, and drives ±25 mA output current - used in industrial control backplanes and low-voltage FPGA I/O interfacing.

For engineers reviewing the MC74LVX50DR2 datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance (up to 5.5 V), guaranteed 2.0–3.6 V supply range, balanced propagation delays across all six channels, and SOIC-14 package compatibility with legacy 3.3 V/5.0 V interface designs.

Technical Context

The MC74LVX50DR2 implements three-stage CMOS buffering per channel to ensure high noise immunity (VNIH/VNIL = 28% VCC) and stable rail-to-rail output swing. Its input structure tolerates up to 5.5 V regardless of VCC, enabling direct connection between 5.0 V logic and 3.3 V systems without external level shifters.

All six buffers are electrically isolated with individual input and output terminals; no shared internal nodes exist between channels. Power-down protection prevents current injection during power sequencing, and output skew is limited to 1.5 ns (max) under matched load conditions.

Key Specifications

Pinout & Package

MC74LVX50DR2 is packaged in a 14-pin SOIC-NB (Case 751A) surface-mount package with standard 1.27 mm pitch, 8.75 mm × 3.9 mm body size, and Pb-free RoHS-compliant finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer applications.

Compared with SN74LVC6T244RTER and 74LVC1G125GW,6, the MC74LVX50DR2 uniquely delivers six synchronized, unidirectional, 5.5 V-tolerant buffers in a single SOIC-14 package - making it optimal for deterministic signal fanout where timing alignment and mixed-voltage interoperability are mandatory.

Availability

MC74LVX50DR2 is available at Aetrix Electronics and suitable for industrial automation, FPGA interface design, and sensor hub integration requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for MC74LVX50DR2 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and logic solutions for automotive, industrial, and cloud infrastructure markets.

The MC74LVX50DR2 belongs to the LVX low-voltage logic family, engineered specifically for robust 2.0–3.6 V operation with enhanced noise immunity and mixed-voltage interface capability in industrial and communications equipment.

FAQ

What is the maximum input voltage rating for MC74LVX50DR2?

The MC74LVX50DR2 supports DC input voltages up to 5.5 V regardless of VCC level, enabling safe interfacing with 5.0 V logic families while operating from a 3.3 V supply. This rating is specified in the Absolute Maximum Ratings table and validated across −40°C to +85°C ambient temperature.

Does MC74LVX50DR2 require external pull-up or pull-down resistors on unused inputs?

Yes - per the datasheet Note 5, unused inputs on MC74LVX50DR2 must be tied to a defined logic level (VCC or GND) and cannot be left floating. This prevents undefined output states, excessive current draw, and potential latch-up in the CMOS input structure.

What is the guaranteed propagation delay matching between outputs of MC74LVX50DR2?

The MC74LVX50DR2 guarantees output-to-output skew of ≤1.5 ns (max) for both tOSHL and tOSLH under VCC = 3.3 V and CL = 50 pF conditions. This tight skew enables precise timing alignment across all six buffered outputs in clock distribution or parallel control applications.

Is MC74LVX50DR2 compatible with lead-free reflow soldering processes?

Yes - MC74LVX50DR2 is Pb-free and RoHS-compliant, qualified for standard lead-free reflow profiles including JEDEC J-STD-020. Its SOIC-14 package has a maximum lead temperature rating of 260°C for 10 seconds, matching industry-standard Pb-free assembly requirements.

Can MC74LVX50DR2 operate reliably at 2.0 V supply voltage?

Yes - MC74LVX50DR2 is fully characterized down to 2.0 V VCC, with guaranteed VIH ≥ 1.5 V, VIL ≤ 0.5 V, and tPLH/tPHL ≤ 12.5 ns (max) at 2.7 V. At 2.0 V, all DC and AC parameters meet specifications across the full −40°C to +85°C operating range.