Texas Instruments SN74LVC2G241DCTR

Overview

SN74LVC2G241 from Texas Instruments is a dual 1-bit noninverting buffer/driver with independent 3-state outputs, designed for 1.65-V to 5.5-V V_CC operation. It delivers ±24-mA output drive at 3.3 V, achieves 4.1-ns max propagation delay at 3.3 V, supports 5.5-V tolerant inputs, and features I_off for live insertion and partial-power-down protection. It serves as a redriver in bus interface and memory address driver applications.

For engineers reviewing the SN74LVC2G241 datasheet, SN74LVC2G241 pinout, SN74LVC2G241 application, or SN74LVC2G241 equivalent, key selection criteria include 3-state control logic (active-low 1OE / active-high 2OE), NanoFree™ SM8 package compatibility, 1.65–5.5-V supply range, overvoltage-tolerant inputs, and I_off-enabled back-drive protection in powered-down systems.

Technical Context

The SN74LVC2G241 implements two independent CMOS buffer channels, each with separate output-enable controls: 1OE (active low) and 2OE (active high). Its logic behavior follows positive-logic truth tables-output Y drives A when its OE is asserted, else enters high-impedance state. The device uses standard LVC process technology with balanced rise/fall times and rail-to-rail output swing.

It supports mixed-voltage interfacing via 5.5-V-tolerant inputs while operating from as low as 1.65 V, enabling down-translation from higher-voltage domains. I_off circuitry actively disables outputs during power-down, blocking current flow between powered and unpowered sections of a system-critical for hot-swap and partial-power-down architectures.

Key Specifications

Pinout & Package

SN74LVC2G241DCTR is packaged in an 8-pin SM8 (Small Outline Package), measuring 2.95 mm × 2.80 mm, with exposed pad thermal enhancement and lead-free (Sn) finish. The package supports automated placement and reflow per JEDEC Level-1 moisture sensitivity rating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 3-state buffer applications.

Compared with SN74LVC2G241DCTR, SN74LVC2G125DCTR offers uniform enable polarity but lacks mixed-mode OE flexibility, while SN74AUP2G241DCTR trades drive strength and voltage range for ultra-low power-making SN74LVC2G241DCTR optimal for industrial and consumer bus redriving where robustness and compatibility outweigh minimum power goals.

Availability

SN74LVC2G241DCTR is available at Aetrix Electronics and suitable for memory address buffering, bus redriving, hot-swap module interfaces, and partial-power-down system control requiring stable component supply across automotive, industrial, and consumer electronics programs.

Supply support for SN74LVC2G241DCTR 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 decades of experience in logic IC design and manufacturing.

The SN74LVC2G241 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for high-speed, low-power, mixed-voltage interfacing in space-constrained applications such as portable media players, network projectors, and embedded PCs.

FAQ

What is the function of the 1OE and 2OE pins on the SN74LVC2G241DCTR?

The SN74LVC2G241DCTR features two independent output-enable controls: 1OE is active-low and enables Channel 1 (1A→1Y) when low; 2OE is active-high and enables Channel 2 (2A→2Y) when high. This asymmetric enable scheme allows independent, timing-isolated control of each buffer-enabling flexible bus arbitration and staggered enable sequencing not possible with uniform-OE devices like the SN74LVC2G125DCTR.

Can the SN74LVC2G241DCTR operate with a 1.65-V supply and still accept 5-V input signals?

Yes. The SN74LVC2G241DCTR supports 1.65-V to 5.5-V V_CC operation and has 5.5-V tolerant inputs-meaning it can reliably accept 5-V logic levels on all A and OE pins even when powered from 1.65 V. This capability enables direct down-translation from legacy 5-V subsystems without external level shifters, preserving signal integrity and reducing component count in mixed-voltage designs.

Does the SN74LVC2G241DCTR support hot-swap or live-insertion applications?

Yes. The SN74LVC2G241DCTR incorporates I_off circuitry that disables outputs and limits leakage to <±10 µA when V_CC = 0 V. This prevents damaging back-current flow during hot-swap events-such as inserting a peripheral card into a powered-backplane system-and eliminates the need for external isolation components, making it suitable for modular computing and telecom infrastructure applications.

What is the maximum output drive capability of the SN74LVC2G241DCTR at 3.3 V?

At V_CC = 3.3 V, the SN74LVC2G241DCTR delivers ±24 mA per output-verified per Electrical Characteristics table in the official datasheet. This drive strength supports driving 50-pF loads with fast edge rates while maintaining VOL ≤ 0.55 V and VOH ≥ 2.3 V, making it suitable for redriving memory address lines, clock nets, and noisy interconnects in AV receivers and embedded PCs.

Which package variant does the SN74LVC2G241DCTR use, and what are its mechanical dimensions?

The SN74LVC2G241DCTR uses the SM8 (Small Outline Package) with 8 pins, also referred to as DCT package. Its nominal body size is 2.95 mm × 2.80 mm, with a lead-free (Sn) finish and JEDEC Level-1 moisture sensitivity rating. The package includes an exposed thermal pad and is optimized for high-density PCB layouts in space-constrained consumer electronics such as portable media players and GPS navigation devices.