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

Texas Instruments SN74LVC541AQPWREP

Name: SN74LVC541AQPWREP
Brand: Texas Instruments
SKU: SN74LVC541AQPWREP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC541AQPWREP

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: SN74LVC541AQPWREP.pdf

Description:: IC BUF NON-INVERT 3.6V 20TSSOP

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Product details

Overview

SN74LVC541AQPWREP from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for 2.0 V to 3.6 V V_CC operation. It features dual active-low output-enable inputs (OE1, OE2), supports mixed-mode 3.3-V/5-V signal translation, delivers 24 mA sink/source drive per output at 3.0 V, and operates across –40°C to 125°C for aerospace and industrial bus interfacing.

For engineers reviewing the SN74LVC541AQPWREP datasheet, SN74LVC541AQPWREP pinout, SN74LVC541AQPWREP application, or SN74LVC541AQPWREP equivalent, key selection criteria include its I_off-enabled partial-power-down capability, 5.1 ns max propagation delay at 3.3 V, 5.5 V-tolerant inputs, and TSSOP-20 package compatibility with high-density PCB layouts.

Technical Context

The SN74LVC541AQPWREP implements a dual-gated 3-state control architecture: both OE1 and OE2 must be low to enable all eight Y outputs; either high forces all outputs into high-impedance. Its input structure accepts voltages up to 5.5 V independent of V_CC, enabling level-shifting between 3.3-V logic domains and legacy 5-V peripherals.

It integrates I_off circuitry that disables outputs during power-down, preventing backflow current when V_CC = 0 V. The device is characterized for extended temperature operation (–40°C to 125°C) and qualified per JEDEC standards including HAST, temperature cycling, and electromigration testing for high-reliability applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.0 V to 3.6 V - Enables direct integration into 3.3-V systems without level shifters
Input Voltage Tolerance	0 V to 5.5 V - Allows safe interfacing with 5-V microcontrollers or sensors while powered from 3.3 V
t_pd Max	5.1 ns at V_CC = 3.3 V - Supports high-speed address/data bus buffering up to ~100 MHz system timing
I_OL/I_OH	±24 mA at V_CC = 3.0 V - Drives standard TTL loads or multiple CMOS inputs without external buffers
I_off Support	Yes - Prevents damaging current flow when V_CC is unpowered, critical for hot-swap and partial-power-down systems
Operating Temperature	–40°C to 125°C - Qualified for under-hood automotive, avionics, and industrial control environments
ESD Rating	±2 kV HBM - Meets minimum robustness requirements for handling and board assembly

Pinout & Package

TSSOP-20 package (PW), 6.5 mm × 4.4 mm footprint, 1.2 mm max height, lead pitch 0.65 mm, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	OE1, OE2	Active-low dual output-enable inputs - Both must be low to assert outputs; either high places all Y outputs in high-Z
2–9	A1–A8	Noninverting data inputs - Accept 5.5-V-tolerant signals regardless of V_CC level
11–18	Y1–Y8	3-state buffered outputs - Provide 24-mA drive strength and support bus-sharing topologies
10	GND	Ground reference - Must be connected to system ground plane for noise immunity and proper I_off operation
20	V_CC	Supply voltage - Powers internal logic and output drivers; decoupling capacitor required within 1 cm

Key Features

Feature	Design Value
Mixed-mode signal operation	5-V-tolerant inputs on 3.3-V supply - Eliminates need for external level translators in hybrid-voltage systems
I_off partial-power-down protection	Outputs disabled with zero current backflow when V_CC = 0 V - Enables safe insertion/removal in live-backplane applications
Controlled baseline & DMS support	Single-fab, single-test-site manufacturing - Ensures long-term supply continuity and consistent parametric performance
Low ground bounce (V_OLP)	<0.8 V typical at V_CC = 3.3 V - Reduces switching noise coupling into sensitive analog sections
High-speed enable/disable	t_en = 7.0 ns, t_dis = 7.0 ns at V_CC = 3.3 V - Minimizes bus contention windows during dynamic bus arbitration

Applications

Memory Address Buffering	Industrial Bus Interface
Use Scenario: Buffering 8-bit address lines between a 3.3-V microcontroller and parallel SRAM or EPROM. IC Role / Device Role / Timing Role: Noninverting octal buffer with 3-state outputs isolating address bus during memory read/write cycles. Use Value: 5.1 ns t_pd ensures setup/hold timing margins are maintained; I_off prevents bus leakage when memory is deselected.	Use Scenario: Interfacing a 3.3-V FPGA I/O bank to legacy 5-V industrial I/O modules via shared data bus. IC Role / Device Role / Timing Role: Level-translating buffer enabling bidirectional 5-V signal reception and 3.3-V signal transmission. Use Value: 5.5-V-tolerant inputs accept 5-V logic highs safely; 24-mA drive strength meets 5-V TTL fanout requirements.
Avionics Data Acquisition	Automotive Powertrain Control
Use Scenario: Isolating sensor ADC address/control lines in a DO-160G-compliant flight data recorder module. IC Role / Device Role / Timing Role: High-reliability octal buffer operating across –40°C to 125°C with qualified pedigree per JEDEC HAST and temperature cycling. Use Value: Extended temperature rating and enhanced DMS support ensure uninterrupted operation during thermal transients and long service life.	Use Scenario: Driving CAN controller address latches and diagnostic port signals in engine control units exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Robust 3-state buffer providing noise-immune signal routing between MCU and peripheral ICs. Use Value: Low V_OLP <0.8 V minimizes ground bounce interference with adjacent analog sensor circuits.

Memory Address Buffering

Industrial Bus Interface

Use Scenario: Buffering 8-bit address lines between a 3.3-V microcontroller and parallel SRAM or EPROM.

IC Role / Device Role / Timing Role: Noninverting octal buffer with 3-state outputs isolating address bus during memory read/write cycles.

Use Value: 5.1 ns t_pd ensures setup/hold timing margins are maintained; I_off prevents bus leakage when memory is deselected.

Use Scenario: Interfacing a 3.3-V FPGA I/O bank to legacy 5-V industrial I/O modules via shared data bus.

IC Role / Device Role / Timing Role: Level-translating buffer enabling bidirectional 5-V signal reception and 3.3-V signal transmission.

Use Value: 5.5-V-tolerant inputs accept 5-V logic highs safely; 24-mA drive strength meets 5-V TTL fanout requirements.

Avionics Data Acquisition

Automotive Powertrain Control

Use Scenario: Isolating sensor ADC address/control lines in a DO-160G-compliant flight data recorder module.

IC Role / Device Role / Timing Role: High-reliability octal buffer operating across –40°C to 125°C with qualified pedigree per JEDEC HAST and temperature cycling.

Use Value: Extended temperature rating and enhanced DMS support ensure uninterrupted operation during thermal transients and long service life.

Use Scenario: Driving CAN controller address latches and diagnostic port signals in engine control units exposed to under-hood temperatures.

IC Role / Device Role / Timing Role: Robust 3-state buffer providing noise-immune signal routing between MCU and peripheral ICs.

Use Value: Low V_OLP <0.8 V minimizes ground bounce interference with adjacent analog sensor circuits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC541APWRE4	Commercial-grade (–40°C to 85°C), same pinout and electrical specs except temp range and qualification pedigree	Lacks extended temperature rating and enhanced DMS support; not suitable for aerospace or under-hood use	Select only for cost-sensitive commercial designs where full QML-EP qualification is unnecessary
SN74LVC541A-Q1	Automotive AEC-Q100 Grade 1 (–40°C to 125°C), identical functionality with additional automotive reliability testing	Includes AEC-Q100 stress validation (e.g., HTOL, ESD, EMC); certified for safety-critical vehicle subsystems	Preferred for automotive ECUs requiring ISO 26262-aligned component assurance

Compared with SN74LVC541APWRE4, the SN74LVC541AQPWREP adds extended temperature operation and military/aerospace pedigree; compared with SN74LVC541A-Q1, it trades automotive-specific validation for broader defense and industrial qualification scope.

Availability

SN74LVC541AQPWREP is available at Aetrix Electronics and suitable for aerospace data acquisition, industrial bus interfacing, and automotive powertrain control requiring stable component supply over extended product lifecycles.

Supply support for SN74LVC541AQPWREP 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and design-in support.

The SN74LVC541AQPWREP belongs to TI's LVC logic family, engineered for low-voltage, high-speed, mixed-signal interface applications in harsh-environment systems demanding extended temperature operation and supply chain stability.

FAQ

What is the maximum operating voltage for inputs on the SN74LVC541AQPWREP?

The SN74LVC541AQPWREP supports input voltages from 0 V to 5.5 V, independent of V_CC. This allows the SN74LVC541AQPWREP to safely interface with 5-V logic sources while powered from a 3.3-V supply, eliminating external level shifters in mixed-voltage systems.

Does the SN74LVC541AQPWREP support partial-power-down operation?

Yes, the SN74LVC541AQPWREP includes I_off circuitry that disables outputs and blocks current backflow when V_CC is at 0 V. This feature makes the SN74LVC541AQPWREP suitable for hot-swap applications and systems requiring controlled power sequencing without risk of damage.

What is the propagation delay of the SN74LVC541AQPWREP at 3.3 V?

The SN74LVC541AQPWREP has a maximum propagation delay (t_pd) of 5.1 ns at V_CC = 3.3 V and T_A = 25°C. This specification enables reliable use in high-speed digital interfaces such as memory address buses and FPGA-to-peripheral interconnects.

Is the SN74LVC541AQPWREP pin-compatible with standard SOIC-packaged versions?

No - the SN74LVC541AQPWREP uses a TSSOP-20 package (PW), while SOIC versions like SN74LVC541AQDWREP use DW packaging. Though functionally identical and electrically compatible, the SN74LVC541AQPWREP requires a different PCB footprint and stencil design due to its 0.65-mm pitch versus SOIC's 1.27-mm pitch.

What qualification standards apply to the SN74LVC541AQPWREP?

The SN74LVC541AQPWREP is qualified per JEDEC standards including Highly Accelerated Stress Test (HAST), temperature cycling, autoclave, electromigration, and bond intermetallic life testing. These tests validate reliability for extended temperature operation (–40°C to 125°C) and long-term deployment in aerospace and industrial systems.

SN74LVC541AQPWREP Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 8

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 2V ~ 3.6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

SN74LVC541AQPWREP FAQ

1.How can I place an order for SN74LVC541AQPWREP through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC541AQPWREP 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 SN74LVC541AQPWREP reliable?

The price and inventory of SN74LVC541AQPWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC541AQPWREP is usually 5 days.

3.What payment methods are accepted for SN74LVC541AQPWREP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC541AQPWREP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LVC541AQPWREP?

SN74LVC541AQPWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC541AQPWREP 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 SN74LVC541AQPWREP?

For technical support, including SN74LVC541AQPWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC541AQPWREP requirements.

6.How does Aetrix verify that SN74LVC541AQPWREP is sourced from the original manufacturer or authorized distributors?

All SN74LVC541AQPWREP 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 SN74LVC541AQPWREP meets industry standards.

7.What is the process for return or replacement of SN74LVC541AQPWREP?

All SN74LVC541AQPWREP units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC541AQPWREP, 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 SN74LVC541AQPWREP part is unused and in its original packaging.

Return procedure for SN74LVC541AQPWREP:

1.Submit a request within 90 days.

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

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