Texas Instruments SN74LVC2G241DCUR

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, and supports 5.5-V tolerant inputs - enabling level translation from higher-voltage logic domains into lower-V_CC systems. It is used in bus-oriented receivers, memory address drivers, and signal redriving in compact consumer electronics.

For engineers reviewing the SN74LVC2G241 datasheet, SN74LVC2G241 pinout, SN74LVC2G241 application, or SN74LVC2G241 equivalent, key selection criteria include its dual independent 3-state control (1OE/2OE), I_off support for live insertion and partial-power-down, ±24-mA drive strength at 3.3 V, 4.1-ns t_pd, and VSSOP-8 (DCU) package compatibility with space-constrained PCB layouts.

Technical Context

The SN74LVC2G241 implements two independent CMOS buffer channels, each with noninverting logic and active-low (1OE) or active-high (2OE) output-enable control. Its I_off circuitry disables outputs during power-down, blocking back-current flow when V_CC = 0 V - critical for hot-swap and mixed-supply system integrity.

It operates across 1.65–5.5 V with overvoltage-tolerant inputs (up to 5.5 V regardless of V_CC), enabling down-translation from 5-V logic to 1.8-V/2.5-V/3.3-V domains. The device exhibits balanced rise/fall times (≤10 ns/V at 3.3 V) and low ground bounce (<0.8 V) and undershoot (>2 V) under switching load conditions.

Key Specifications

Pinout & Package

VSSOP-8 (DCU) package: 2.30 mm × 2.00 mm body, 0.5-mm lead pitch, 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 dual 3-state buffer applications.

Compared with SN74LVC2G241, SN74LVC2G125DCUR simplifies control but sacrifices flexible bus arbitration, while 74LVC2G240DCUR introduces mandatory logic inversion - making SN74LVC2G241 uniquely suited for mixed-polarity 3-state control in space-constrained, multi-voltage systems.

Availability

SN74LVC2G241 is available at Aetrix Electronics and suitable for memory address buffering, bus redriving, hot-swappable module interfaces, and level-translated control signaling requiring stable component supply across industrial, computing, and consumer electronics programs.

Supply support for SN74LVC2G241 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 decades of expertise in high-reliability, low-power interface ICs.

The SN74LVC2G241 belongs to TI's LVC logic family - engineered for low-voltage operation (1.65–5.5 V), high noise immunity, and seamless integration in mixed-supply digital systems including portable media players, embedded PCs, and network projectors.

FAQ

What is the function of the 1OE and 2OE pins on the SN74LVC2G241?

The SN74LVC2G241 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 mixed-polarity design allows asymmetric bus control - for example, holding one channel active while tri-stating the other without additional logic. Both pins support I_off behavior during power-down.

Can the SN74LVC2G241 operate with a 1.8-V supply and interface with 5-V inputs?

Yes. The SN74LVC2G241 supports V_CC as low as 1.65 V and accepts input voltages up to 5.5 V regardless of supply voltage - enabling true down-translation. At V_CC = 1.8 V, it delivers valid CMOS output levels (V_OH ≥ 1.2 V, V_OL ≤ 0.45 V) while safely clamping 5-V inputs, eliminating external level shifters in mixed-voltage designs.

Does the SN74LVC2G241 support hot-swap or live-insertion applications?

Yes. The SN74LVC2G241 incorporates I_off circuitry that disables outputs and limits leakage to ±10 µA when V_CC = 0 V. This prevents back-current flow during hot-plug events, protecting both the SN74LVC2G241 and upstream/downstream circuitry - a key requirement for modular systems like docking stations and field-replaceable units.

What is the maximum output current drive capability of the SN74LVC2G241 at 3.3 V?

At V_CC = 3.3 V, the SN74LVC2G241 delivers ±24 mA per output - verified per Electrical Characteristics table (I_OH = –24 mA, I_OL = 24 mA). This enables driving multiple LVC/LVT inputs or moderate PCB trace capacitance without signal degradation, supporting fanout of up to 10 standard CMOS loads.

Is the SN74LVC2G241 available in a lead-free, RoHS-compliant package?

Yes. The SN74LVC2G241DCUR variant uses a VSSOP-8 (DCU) package with NiPdAu lead finish, RoHS-compliant materials, and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH). It is supplied on 3000-unit tape-and-reel with Q3 pin-1 orientation, fully qualified for automated SMT assembly.