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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments SN74LVTH241NSR

Name: SN74LVTH241NSR
Brand: Texas Instruments
SKU: SN74LVTH241NSR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVTH241NSR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-SOIC (0.209", 5.30mm Width)

Datasheet:: SN74LVTH241NSR.pdf

Description:: IC BUFFER NON-INVERT 3.6V 20SO

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Product details

Overview

SN74LVTH241NSR from Texas Instruments is an octal noninverting buffer/driver IC designed for 3.3-V V_CC operation with 5-V tolerant inputs and outputs, supporting mixed-mode signal interfacing between 3.3-V and 5-V systems. It features bus-hold circuitry on all data inputs, I_off protection for hot insertion, and operates down to 2.7 V supply voltage. It is used in backplane interface, memory address buffering, and legacy bus bridging applications.

For engineers reviewing the SN74LVTH241NSR datasheet, SN74LVTH241NSR pinout, SN74LVTH241NSR application, or SN74LVTH241NSR equivalent, key selection criteria include its 20-pin SSOP package, dual 4-bit output-enable control (1OE/2OE), TTL-compatible input thresholds at 3.3-V V_CC, bus-hold functionality eliminating external resistors, and guaranteed hot-insertion support via I_off and power-up 3-state.

Technical Context

The SN74LVTH241NSR implements two independent 4-bit noninverting buffer sections, each with dedicated output-enable inputs (1OE and 2OE). Its logic behavior is defined by active-low enable for section 1 and active-high enable for section 2 - enabling flexible bus partitioning and directional control without external inversion.

Bus-hold circuitry actively maintains valid logic states on undriven A-inputs with ±75 µA hold current at V_CC = 3 V, while I_off limits current flow when V_CC = 0, preventing backdrive damage during hot insertion. The device enters high-impedance state when V_CC is below 1.5 V or when OE signals are asserted per function table.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.7 V to 3.6 V - supports unregulated battery operation and ensures compatibility with standard 3.3-V supply rails.
Input Voltage Tolerance	−0.5 V to 7 V - enables direct connection to 5-V TTL buses without level-shifting components.
I_OL / I_OH	64 mA / −32 mA at V_CC = 3 V - drives heavy capacitive loads and multiple TTL inputs in legacy bus environments.
t_PLH/t_PHL	1.1 ns to 3.9 ns (V_CC = 3.3 V, C_L = 50 pF) - provides fast propagation for high-speed address/data buffering in industrial controllers.
Bus-Hold Current	±75 µA at V_CC = 3 V - eliminates need for external pullup/pulldown resistors on floating data lines, reducing BOM count and layout complexity.
I_off	±100 µA at V_CC = 0 - prevents damaging current backflow during hot-plug events, critical for modular backplane systems.
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded applications including programmable logic controllers and test equipment.

Pinout & Package

SN74LVTH241NSR is housed in a 20-pin Small Outline Package (SSOP), designated DB package per TI documentation, with 0.65 mm lead pitch, 7.4 mm body width, and 2.0 mm max height. Pin 1 index area is located at top-left corner with beveled edge marking.

Pin/Terminal	Circuit Role	Design Meaning
1OE	Section 1 Output Enable (active low)	Controls Y1–Y4 drivers; low enables noninverted pass-through from A1–A4 to Y1–Y4.
2OE	Section 2 Output Enable (active high)	Controls Y1–Y4 drivers; high enables noninverted pass-through from A1–A4 to Y1–Y4.
A1–A4	Data inputs for section 1	Accept 5-V-tolerant signals; bus-hold circuitry maintains logic state if left floating.
2A1–2A4	Data inputs for section 2	Identical electrical behavior to A1–A4; electrically isolated but share same bus-hold architecture.
Y1–Y4	Outputs for section 1	Drive 5-V TTL loads at 3.3-V V_CC; high-impedance when 1OE is high or 2OE is low.
2Y1–2Y4	Outputs for section 2	Same drive strength and timing as Y1–Y4; independently controlled by 2OE.
GND	Ground reference	Primary return path for all I/O and supply currents; requires low-inductance PCB connection.
V_CC	Positive supply	3.3-V nominal supply; must be decoupled locally with 0.1 µF ceramic capacitor near pin 20.

Key Features

Feature	Design Value
Mixed-mode signal interface	5-V input/output voltage tolerance with 3.3-V V_CC enables seamless interconnection between legacy 5-V logic and modern 3.3-V microcontrollers.
Bus-hold circuitry	Eliminates external pullup/pulldown resistors on all eight data inputs, reducing component count and board space in high-density designs.
I_off and power-up 3-state	Prevents current backflow and driver conflict during hot insertion or power sequencing, meeting industrial modularity requirements.
Output ground bounce (V_OLP)	<0.8 V at V_CC = 3.3 V - minimizes noise coupling into sensitive analog sections during switching transitions.
Latch-up immunity	>500 mA per JESD 17 - ensures robustness against transient overcurrent events in noisy industrial environments.

Applications

Industrial Backplane Interface	Memory Address Buffering
Use Scenario: Interfacing a 3.3-V FPGA to a 5-V ISA-style backplane with shared address/data lines. IC Role / Device Role / Timing Role: Bidirectional buffer isolating voltage domains while preserving signal integrity and timing margins. Use Value: Enables direct connection without level shifters; bus-hold prevents floating states during bus arbitration gaps.	Use Scenario: Driving 16-bit address lines from a 3.3-V microcontroller to multiple 5-V SRAM chips. IC Role / Device Role / Timing Role: Noninverting voltage-tolerant driver providing fanout and noise margin for parallel memory access. Use Value: Delivers 64 mA sink current per output to meet TTL input loading requirements across full temperature range.
Legacy Bus Bridging	Hot-Swappable Module Control
Use Scenario: Adapting 3.3-V CPLD outputs to 5-V PCI Local Bus segments in test instrumentation. IC Role / Device Role / Timing Role: Level-translating buffer with configurable enable control for selective bus segment activation. Use Value: Dual OE inputs allow independent gating of upper/lower byte lanes, simplifying protocol-aware enable sequencing.	Use Scenario: Enabling/disabling peripheral modules in a field-replaceable I/O chassis with live power. IC Role / Device Role / Timing Role: Hot-insertion-safe buffer ensuring no backdrive or contention during module insertion/removal. Use Value: I_off and power-up 3-state guarantee zero current flow when V_CC is absent, protecting host controller pins.

Industrial Backplane Interface

Memory Address Buffering

Use Scenario: Interfacing a 3.3-V FPGA to a 5-V ISA-style backplane with shared address/data lines.

IC Role / Device Role / Timing Role: Bidirectional buffer isolating voltage domains while preserving signal integrity and timing margins.

Use Value: Enables direct connection without level shifters; bus-hold prevents floating states during bus arbitration gaps.

Use Scenario: Driving 16-bit address lines from a 3.3-V microcontroller to multiple 5-V SRAM chips.

IC Role / Device Role / Timing Role: Noninverting voltage-tolerant driver providing fanout and noise margin for parallel memory access.

Use Value: Delivers 64 mA sink current per output to meet TTL input loading requirements across full temperature range.

Legacy Bus Bridging

Hot-Swappable Module Control

Use Scenario: Adapting 3.3-V CPLD outputs to 5-V PCI Local Bus segments in test instrumentation.

IC Role / Device Role / Timing Role: Level-translating buffer with configurable enable control for selective bus segment activation.

Use Value: Dual OE inputs allow independent gating of upper/lower byte lanes, simplifying protocol-aware enable sequencing.

Use Scenario: Enabling/disabling peripheral modules in a field-replaceable I/O chassis with live power.

IC Role / Device Role / Timing Role: Hot-insertion-safe buffer ensuring no backdrive or contention during module insertion/removal.

Use Value: I_off and power-up 3-state guarantee zero current flow when V_CC is absent, protecting host controller pins.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC244APWR	Lower drive strength (24 mA sink), no bus-hold, 1.65–3.6 V V_CC range, TSSOP-20 package.	Suitable for lower-power 3.3-V-only systems; lacks 5-V tolerance and hot-insertion features.	Select when cost and power efficiency outweigh mixed-voltage and hot-swap requirements.
74ALVC244MTCX	Higher speed (t_PD ≈ 2.5 ns), no bus-hold, 2.3–3.6 V V_CC, SOIC-20 package, ±24 mA I_O.	Optimized for high-speed 3.3-V digital interfaces; not rated for 5-V input tolerance or industrial temperature range.	Choose for compact, high-frequency data paths where voltage translation is handled externally.

Compared with SN74LVTH241NSR, SN74LVC244APWR offers lower static power but requires external biasing for unused inputs and cannot interface directly with 5-V buses; 74ALVC244MTCX delivers faster timing but sacrifices mixed-mode capability and industrial temperature support.

Availability

SN74LVTH241NSR is available at Aetrix Electronics and suitable for industrial backplane interface, memory address buffering, and hot-swappable module control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVTH241NSR 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 experience in industrial-grade interface ICs.

The SN74LVTH241NSR belongs to TI's LVTH logic family, engineered specifically for mixed-voltage system interfacing and hot-plug reliability in industrial automation, test equipment, and legacy bus extension applications.

FAQ

What is the maximum input voltage rating for SN74LVTH241NSR?

The SN74LVTH241NSR supports input voltages from −0.5 V to 7 V, enabling direct connection to 5-V TTL buses without external level-shifting circuitry. This specification is verified under absolute maximum ratings and applies across the full operating temperature range of −40°C to +85°C. The device maintains functional integrity at 5.5-V input levels per recommended operating conditions, making SN74LVTH241NSR suitable for mixed-signal interfacing in industrial control systems.

Does SN74LVTH241NSR require external pullup resistors on its inputs?

No, SN74LVTH241NSR does not require external pullup or pulldown resistors due to integrated bus-hold circuitry on all eight data inputs. This feature actively maintains valid logic states on undriven inputs with ±75 µA hold current at V_CC = 3 V. Using external resistors with SN74LVTH241NSR is explicitly discouraged in the datasheet, as it may interfere with bus-hold operation and increase power consumption unnecessarily.

Can SN74LVTH241NSR be used in hot-swap applications?

Yes, SN74LVTH241NSR is fully specified for hot-insertion applications using both I_off and power-up 3-state technologies. When V_CC = 0, I_off limits current to ±100 µA, preventing backdrive damage. During power-up/down, outputs remain in high-impedance state until V_CC exceeds 1.5 V, avoiding bus contention. These features are validated per TI's design and testing protocols for SN74LVTH241NSR.

What is the output drive capability of SN74LVTH241NSR at 3.3-V V_CC?

At V_CC = 3 V, SN74LVTH241NSR delivers 64 mA sink current (I_OL) and −32 mA source current (I_OH) per output, sufficient to drive multiple TTL inputs or moderate capacitive loads. These values are guaranteed across the full operating temperature range and are measured under standard test conditions with C_L = 50 pF. This drive strength ensures reliable signal integrity in memory address and data bus applications.

Is SN74LVTH241NSR compatible with 2.7-V operation?

Yes, SN74LVTH241NSR is fully specified for operation down to 2.7 V V_CC, supporting unregulated battery-powered systems. All recommended operating conditions-including VIH = 2 V, VIL = 0.8 V, and I_OL/I_OH drive strength-are guaranteed at 2.7 V. Propagation delay increases modestly (t_PLH/t_PHL up to 3.9 ns at V_CC = 2.7 V), but remains within functional timing budgets for most industrial control applications using SN74LVTH241NSR.

SN74LVTH241NSR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVTH

Package/Case:: 20-SOIC (0.209", 5.30mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 32mA, 64mA

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SO

SN74LVTH241NSR FAQ

1.How can I place an order for SN74LVTH241NSR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVTH241NSR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN74LVTH241NSR reliable?

The price and inventory of SN74LVTH241NSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH241NSR is usually 5 days.

3.What payment methods are accepted for SN74LVTH241NSR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH241NSR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LVTH241NSR?

SN74LVTH241NSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVTH241NSR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN74LVTH241NSR?

For technical support, including SN74LVTH241NSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH241NSR requirements.

6.How does Aetrix verify that SN74LVTH241NSR is sourced from the original manufacturer or authorized distributors?

All SN74LVTH241NSR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74LVTH241NSR meets industry standards.

7.What is the process for return or replacement of SN74LVTH241NSR?

All SN74LVTH241NSR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH241NSR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN74LVTH241NSR part is unused and in its original packaging.

Return procedure for SN74LVTH241NSR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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