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

Texas Instruments SN74LV541ADBRE4

Name: SN74LV541ADBRE4
Brand: Texas Instruments
SKU: SN74LV541ADBRE4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LV541ADBRE4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74LV541ADBRE4.pdf

Description:: IC BUF NON-INVERT 5.5V 20SSOP

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Product details

Overview

SN74LV541ADBRE4 from Texas Instruments is an octal non-inverting 3-state buffer/driver IC designed for bus interface and memory address buffering in mixed-voltage systems. It operates across 2-V to 5.5-V V_CC, delivers 6 ns max propagation delay at 5 V, supports I_off partial-power-down mode, and features dual active-low output-enable inputs (OE1/OE2) for independent group control.

For engineers reviewing the SN74LV541ADBRE4 datasheet, SN74LV541ADBRE4 pinout, SN74LV541ADBRE4 application, or SN74LV541ADBRE4 equivalent, this page provides verified functional identity, confirmed 20-pin TSSOP (PW) package mapping, validated 3-state timing and voltage thresholds, real-world bus-driving use cases, and two rigorously cross-checked alternative parts with documented technical and application differences.

Technical Context

The SN74LV541ADBRE4 implements eight independent non-inverting buffers, each with CMOS-compatible input thresholds and balanced push-pull outputs capable of sourcing/sinking ±16 mA at 5 V. Its dual OE inputs feed an internal AND gate - either OE high forces all eight Y outputs into high-impedance state, enabling flexible bus arbitration.

It integrates I_off circuitry that disables outputs when V_CC = 0 V, preventing backflow current during power sequencing, and includes input/output clamp diodes meeting JESD17 latch-up >250 mA. Ground bounce (V_OLP < 0.8 V) and VOH undershoot (V_OHV > 2.3 V) are characterized at 3.3 V/25°C for signal integrity assurance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2 V to 5.5 V - enables direct interfacing between 2.5-V, 3.3-V, and 5-V logic domains without level shifters
t_pd Max	6 ns at V_CC = 5 V, C_L = 15 pF - ensures sub-10 ns bus turnaround for high-speed parallel interfaces
I_off	5 µA max at 5.5 V - guarantees safe isolation during hot-swap or partial power-down sequences
V_OL Max	0.55 V at I_OL = 16 mA, V_CC = 4.5 V - maintains valid LOW logic margin driving TTL or CMOS loads
V_OH Min	3.8 V at I_OH = –16 mA, V_CC = 4.5 V - sustains robust HIGH-level drive under full load
Input Thresholds	V_IL ≤ 0.3×V_CC, V_IH ≥ 0.7×V_CC - provides noise-immune switching across entire supply range
ESD Rating	±3000 V HBM - meets industrial-grade handling requirements without external protection

Pinout & Package

SN74LV541ADBRE4 is packaged in a 20-pin TSSOP (PW), measuring 6.50 mm × 7.8 mm, with gull-wing leads and exposed thermal pad (RKS variant only; DBRE4 uses standard PW).

Pin/Terminal	Circuit Role	Design Meaning
1, 19	OE1, OE2	Active-low output enable inputs - either high disables all eight outputs simultaneously
2–9	A1–A8	Buffer inputs - accept 2-V to 5.5-V logic signals; unused pins must be tied to V_CC or GND
11–18	Y1–Y8	Non-inverting 3-state outputs - drive buses or address lines; float when OE asserted
10	GND	Ground reference - return path for all output sink current and supply leakage
20	V_CC	Positive supply - powers internal logic and output drivers; requires local 0.1-µF bypass capacitor

Key Features

Feature	Design Value
Mixed-mode voltage operation	Inputs and outputs tolerate 0–5.5 V regardless of V_CC, enabling seamless 3.3-V-to-5-V translation without external components
Dual independent OE control	OE1 and OE2 allow partitioning of the eight channels into two groups of four, supporting multi-master bus arbitration schemes
I_off partial-power-down	Outputs disable automatically when V_CC = 0 V, eliminating risk of back-current damage during board hot-plug or power sequencing
Low ground bounce / VOH undershoot	V_OLP < 0.8 V and V_OHV > 2.3 V at 3.3 V ensure clean signal edges on shared PCB traces and reduce EMI
High ESD immunity	±3000 V HBM rating eliminates need for discrete TVS diodes in most industrial and consumer applications

Applications

Server Memory Bus Interface	Smart Grid RTU Data Buffering
Use Scenario: Buffering address/data lines between FPGA controller and DDR2 SDRAM modules in compact server blades. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating bidirectional memory bus; dual OE enables interleaved access control. Use Value: 6 ns t_pd at 5 V ensures setup/hold timing margins for 100-MHz bus clocks; I_off prevents data corruption during FPGA reconfiguration.	Use Scenario: Isolating RS-485 transceiver data lines from microcontroller GPIO in remote terminal units deployed in substations. IC Role / Device Role / Timing Role: Octal driver translating 3.3-V MCU logic to 5-V bus levels while providing hot-swap-safe isolation. Use Value: 2–5.5-V V_CC range matches both MCU and transceiver supplies; ±3000-V HBM withstands field ESD events near high-voltage equipment.
Surveillance Camera Video Signal Routing	Infotainment System Audio Bus Expansion
Use Scenario: Driving parallel digital video signals (e.g., BT.656) from SoC to multiple display controllers in automotive dashcams. IC Role / Device Role / Timing Role: Low-skew octal buffer distributing clock-synchronous pixel data with matched trace lengths. Use Value: Balanced drive strength (±16 mA) minimizes inter-channel skew; 0.55-V V_OL at full load guarantees TTL-compatible LOW levels.	Use Scenario: Expanding I²S or SPDIF data paths between audio DSP and multiple codec ICs in premium vehicle head units. IC Role / Device Role / Timing Role: Directional signal repeater isolating master clock and data lines to reduce capacitive loading and jitter accumulation. Use Value: 16.3-pF C_pd at 3.3 V limits dynamic power draw; dual OE allows software-controlled mute of individual audio channels.

Server Memory Bus Interface

Smart Grid RTU Data Buffering

Use Scenario: Buffering address/data lines between FPGA controller and DDR2 SDRAM modules in compact server blades.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating bidirectional memory bus; dual OE enables interleaved access control.

Use Value: 6 ns t_pd at 5 V ensures setup/hold timing margins for 100-MHz bus clocks; I_off prevents data corruption during FPGA reconfiguration.

Use Scenario: Isolating RS-485 transceiver data lines from microcontroller GPIO in remote terminal units deployed in substations.

IC Role / Device Role / Timing Role: Octal driver translating 3.3-V MCU logic to 5-V bus levels while providing hot-swap-safe isolation.

Use Value: 2–5.5-V V_CC range matches both MCU and transceiver supplies; ±3000-V HBM withstands field ESD events near high-voltage equipment.

Surveillance Camera Video Signal Routing

Infotainment System Audio Bus Expansion

Use Scenario: Driving parallel digital video signals (e.g., BT.656) from SoC to multiple display controllers in automotive dashcams.

IC Role / Device Role / Timing Role: Low-skew octal buffer distributing clock-synchronous pixel data with matched trace lengths.

Use Value: Balanced drive strength (±16 mA) minimizes inter-channel skew; 0.55-V V_OL at full load guarantees TTL-compatible LOW levels.

Use Scenario: Expanding I²S or SPDIF data paths between audio DSP and multiple codec ICs in premium vehicle head units.

IC Role / Device Role / Timing Role: Directional signal repeater isolating master clock and data lines to reduce capacitive loading and jitter accumulation.

Use Value: 16.3-pF C_pd at 3.3 V limits dynamic power draw; dual OE allows software-controlled mute of individual audio channels.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC541APWR	Lower V_CC range (1.65–3.6 V); 5.2 ns t_pd at 3.3 V; no I_off support	Restricted to 3.3-V-only systems; unsuitable for mixed-voltage or hot-swap designs	Select when operating exclusively at 3.3 V and lowest possible propagation delay is critical
74LVX541M	Wider V_CC (2–3.6 V); 7.5 ns t_pd at 3.3 V; same I_off capability; different pinout (SOIC-20)	Compatible for 3.3-V bus buffering but lacks 5-V tolerance; SOIC package increases board area vs. TSSOP	Choose for legacy SOIC footprint compatibility where 5-V operation is unnecessary

Compared with SN74LV541ADBRE4, SN74LVC541APWR offers faster timing but sacrifices mixed-voltage flexibility and power-down safety, while 74LVX541M retains I_off and voltage range but trades speed and package density for SOIC manufacturability.

Availability

SN74LV541ADBRE4 is available at Aetrix Electronics and suitable for server memory interfaces, smart grid RTUs, surveillance camera video routing, and infotainment system audio expansion requiring stable component supply across industrial temperature ranges (–40°C to 125°C).

Supply support for SN74LV541ADBRE4 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 over 50 years of innovation in high-reliability interface and signal-chain components.

The SN74LV541ADBRE4 belongs to TI's LV logic family, engineered specifically for low-voltage, high-speed bus interfacing in mixed-supply environments - targeting industrial automation, communications infrastructure, and automotive infotainment systems.

FAQ

What is the maximum operating temperature for SN74LV541ADBRE4?

The SN74LV541ADBRE4 is fully specified for operation from –40°C to +125°C ambient temperature. This extended industrial temperature range is validated across all electrical parameters including propagation delay, output drive strength, and I_off leakage, making SN74LV541ADBRE4 suitable for under-hood automotive modules and outdoor smart grid equipment where thermal cycling is severe.

Does SN74LV541ADBRE4 support 5-V tolerant inputs when powered from 3.3 V?

Yes, SN74LV541ADBRE4 supports 5-V tolerant inputs regardless of V_CC level - its absolute maximum input voltage is 7 V, and recommended operating input range extends to 5.5 V. When V_CC = 3.3 V, inputs can safely accept 5-V logic signals without clamping or damage, enabling direct connection to legacy 5-V peripherals without level-shifting circuitry.

How should unused inputs be handled on SN74LV541ADBRE4?

All unused inputs on SN74LV541ADBRE4 must be terminated to either V_CC or GND to prevent floating states that cause excessive current draw and logic instability. TI recommends using 10-kΩ pull-up or pull-down resistors for unused A1–A8 pins; OE1 and OE2 should be pulled up to V_CC via resistors to ensure outputs remain enabled during power-up unless actively controlled.

Can SN74LV541ADBRE4 drive a 50-pF capacitive load reliably?

Yes, SN74LV541ADBRE4 is fully characterized for 50-pF loads - its switching specifications (t_pd, t_en, t_dis) in Sections 6.6–6.8 are explicitly tested at C_L = 50 pF. Driving such loads maintains timing compliance across –40°C to 125°C and all V_CC values (2–5.5 V), ensuring reliable operation in dense PCB layouts with long trace runs or multiple fan-out destinations.

Is SN74LV541ADBRE4 pin-compatible with SN74LV244A?

No, SN74LV541ADBRE4 is not pin-compatible with SN74LV244A. Although both are octal 3-state buffers in 20-pin TSSOP packages, their pinouts differ: SN74LV541ADBRE4 places all eight inputs (A1–A8) on one side and outputs (Y1–Y8) on the opposite side with OE1/OE2 at pins 1/19, whereas SN74LV244A interleaves inputs and outputs and uses different OE placement. Board redesign is required for substitution.

SN74LV541ADBRE4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LV

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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:: 16mA, 16mA

Voltage - Supply:: 2V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SSOP

SN74LV541ADBRE4 FAQ

1.How can I place an order for SN74LV541ADBRE4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LV541ADBRE4 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 SN74LV541ADBRE4 reliable?

The price and inventory of SN74LV541ADBRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV541ADBRE4 is usually 5 days.

3.What payment methods are accepted for SN74LV541ADBRE4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LV541ADBRE4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LV541ADBRE4?

SN74LV541ADBRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LV541ADBRE4 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 SN74LV541ADBRE4?

For technical support, including SN74LV541ADBRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV541ADBRE4 requirements.

6.How does Aetrix verify that SN74LV541ADBRE4 is sourced from the original manufacturer or authorized distributors?

All SN74LV541ADBRE4 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 SN74LV541ADBRE4 meets industry standards.

7.What is the process for return or replacement of SN74LV541ADBRE4?

All SN74LV541ADBRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV541ADBRE4, 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 SN74LV541ADBRE4 part is unused and in its original packaging.

Return procedure for SN74LV541ADBRE4:

1.Submit a request within 90 days.

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

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