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Texas Instruments SN74LVC541ADGVRE4
- Part No.:
- SN74LVC541ADGVRE4
- Manufacturer:
- Texas Instruments
- Package:
- 20-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVC541ADGVRE4.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20TVSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC541ADGVRE4 from Texas Instruments is an octal non-inverting buffer with 3-state outputs, designed for bus interface and signal redriving in 1.65V–3.6V systems. It features dual active-low output enables (OE1/OE2), 5.1ns max propagation delay at 3.3V, 5.5V-tolerant inputs, and Ioff support for live insertion in partial-power-down applications.
For engineers reviewing the SN74LVC541ADGVRE4 datasheet, SN74LVC541ADGVRE4 pinout, SN74LVC541ADGVRE4 application, or SN74LVC541ADGVRE4 equivalent, key selection criteria include 3-state drive capability, mixed-mode voltage compatibility (5V inputs into 3.3V VCC), ground-bounce/undershoot performance, and TVSOP-20 package suitability for high-density PCB layouts.
Technical Context
The SN74LVC541ADGVRE4 implements eight independent CMOS buffer channels sharing two synchronized active-low output enable inputs-both OE1 and OE2 must be low to activate outputs. Its balanced push-pull 3-state outputs drive high/low or enter high-impedance mode without leakage exceeding ±10 µA in Ioff state.
It supports mixed-voltage operation: inputs tolerate up to 5.5V regardless of VCC (1.65–3.6V), enabling direct interfacing between 5V legacy logic and 3.3V domains. Output VOH/VOL specifications are defined per load current (e.g., VOH ≥ 2.2V at IOH = –12mA, VCC = 2.7V) and scale predictably across supply voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65V to 3.6V - Enables operation across 1.8V and 3.3V logic families without level shifters. |
| Input Voltage Tolerance | Up to 5.5V - Allows direct connection to 5V signals while powered from 3.3V or lower supplies. |
| Max Propagation Delay | 5.1ns at VCC = 3.3V - Supports >100MHz signal redriving in short-trace digital interfaces. |
| Output Drive Strength | ±24mA at VCC = 3.0V - Sufficient to drive 50pF loads or terminate transmission lines with series damping. |
| Ioff Current | ±10µA max - Ensures safe back-drive protection and hot-plug capability during power sequencing. |
| ESD Rating (HBM) | ±2000V - Meets industrial-grade robustness requirements for board-level handling and assembly. |
| Operating Temperature | –40°C to +125°C - Qualified for automotive under-hood and industrial control environments. |
Pinout & Package
SN74LVC541ADGVRE4 is packaged in a 20-pin TVSOP (Thin Very Small Outline Package) with 0.5mm pitch, body size 5.0mm × 4.4mm, and total footprint 5.0mm × 6.4mm - optimized for space-constrained PCBs requiring fine-pitch surface-mount assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OE1, OE2 | Active-low output enable inputs | Both must be low to enable all eight buffers; provides synchronous 3-state control for bus arbitration. |
| A1–A8 | Buffer input terminals | CMOS-compatible inputs accepting 0–5.5V; require termination to VCC/GND if unused to prevent floating. |
| Y1–Y8 | Buffer output terminals | 3-state CMOS outputs capable of sourcing/sinking ±24mA; high-impedance when OE1/OE2 high. |
| VCC | Positive supply | 1.65–3.6V supply pin; requires local 0.1µF bypass capacitor placed adjacent to pin 20. |
| GND | Ground reference | Signal and power return path; must be low-impedance with unbroken ground plane beneath traces. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5V-tolerant inputs allow seamless interfacing between 5V peripherals and 3.3V microcontrollers without external level translators. |
| Ioff partial-power-down | Prevents current backflow when VCC = 0V, enabling safe live insertion into powered-backplane systems. |
| Low ground bounce (VOLP) | Typical <0.8V at VCC = 3.3V - reduces noise coupling into shared ground planes during simultaneous switching. |
| Controlled output undershoot (VOHV) | Typical >2V at VCC = 3.3V - minimizes false triggering on downstream CMOS inputs during fast edge transitions. |
| Latch-up immunity | Exceeds 100mA per JESD78 - ensures robustness against transient overcurrent events in noisy industrial environments. |
Applications
| Bus Signal Redriving | LED Indicator Driving |
|---|---|
Use Scenario: Extending trace length between FPGA and memory controller beyond 12cm while maintaining signal integrity. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer redriving parallel address/data bus signals with controlled edge rates. Use Value: Enables reliable 100+ MHz operation by compensating for capacitive loading and trace loss without adding timing skew. | Use Scenario: Driving multiple discrete LEDs from a low-current GPIO port of an ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: High-current buffer translating weak MCU outputs into 20mA LED drive capability. Use Value: Eliminates need for discrete transistors or current-limiting resistors per LED, reducing BOM count and layout area. |
| Controller Reset Hold | Transmission Line Termination |
Use Scenario: Holding peripheral enable lines in known state during system reset sequence initiated by PMIC. IC Role / Device Role / Timing Role: 3-state latch holding signal stable while upstream controller is in reset or power-down. Use Value: Prevents spurious peripheral activation or data corruption during boot initialization sequences. | Use Scenario: Driving 50Ω coaxial cable or PCB microstrip line to remote sensor node in factory automation system. IC Role / Device Role / Timing Role: Impedance-matched driver with source-series termination capability (via external Rd). Use Value: Suppresses reflections and ringing on long traces, verified via simulated eye diagrams with Rd = 22Ω–33Ω. |
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 |
|---|---|---|---|
| SN74LVC541APWRE4 | TSSOP-20 package (6.5mm × 6.4mm); 120.3°C/W RθJA vs. 128.7°C/W for DGV | Slightly better thermal performance; larger footprint may impact ultra-dense layouts | Preferred where board real estate allows and thermal margin is critical at full 24mA load. |
| 74LVC541AD,212 | NXP SO-20 package (12.8mm × 10.3mm); higher RθJA (114.8°C/W), no Ioff spec listed | Legacy industrial availability; lacks documented live-insertion support | Selected only for drop-in replacement in existing SOIC footprints with relaxed hot-swap requirements. |
Compared with SN74LVC541APWRE4 and 74LVC541AD,212, the SN74LVC541ADGVRE4 offers the smallest PCB footprint among TI/NXP octal LVC buffers while retaining full Ioff and 5.5V input tolerance-making it optimal for space-constrained, mixed-voltage embedded systems requiring hot-plug resilience.
Availability
SN74LVC541ADGVRE4 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, medical diagnostic equipment, and IoT edge gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC541ADGVRE4 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 expertise in logic IC design and manufacturing reliability.
The SN74LVC541ADGVRE4 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for high-speed, low-power, mixed-voltage interfacing in space- and power-sensitive embedded systems.
FAQ
What is the maximum operating temperature range for the SN74LVC541ADGVRE4?
The SN74LVC541ADGVRE4 is rated for operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD47 stress testing and supports deployment in automotive under-hood modules, industrial motor drives, and outdoor telecom infrastructure where thermal extremes occur. The device's thermal metrics (RθJA = 128.7°C/W in TVSOP) ensure junction temperature remains within safe limits under typical 24mA-per-output loading at 125°C ambient.
Does the SN74LVC541ADGVRE4 support 5V input signals when powered from 3.3V?
Yes, the SN74LVC541ADGVRE4 accepts input voltages up to 5.5V regardless of VCC level (1.65V–3.6V), enabling direct interfacing with 5V TTL or legacy logic without external level shifters. This mixed-mode capability is explicitly guaranteed in the Recommended Operating Conditions table and confirmed by absolute maximum ratings. Inputs remain fully compatible with 5V signals even when VCC = 1.8V or 2.5V, making SN74LVC541ADGVRE4 ideal for heterogeneous voltage domain bridging.
How do the dual output enable pins (OE1 and OE2) function on the SN74LVC541ADGVRE4?
The SN74LVC541ADGVRE4 requires both OE1 and OE2 to be driven low simultaneously to enable all eight buffer outputs. If either OE1 or OE2 is high, all Y1–Y8 outputs enter high-impedance state. This AND-gated enable logic prevents accidental bus contention during power-up or reset sequences. The functional table in Section 7.4 confirms that only the "L L" combination yields active outputs; all other combinations (L H, H L, H H) force Z-state. This design enhances system-level fault tolerance in multi-controller bus architectures.
What is the purpose of the Ioff specification in the SN74LVC541ADGVRE4 datasheet?
The Ioff specification (±10µA max) defines leakage current at inputs and outputs when VCC = 0V, enabling safe live insertion into powered-backplane systems. When the SN74LVC541ADGVRE4 is unpowered but connected to active 5V buses, Ioff prevents damaging back-current flow into its internal circuitry. This feature is critical for hot-swap applications like modular PLC I/O cards or server blade interconnects, where components may be added/removed without shutting down the entire system-ensuring compliance with IEC 61000-4-2 and system-level safety standards.
Can the SN74LVC541ADGVRE4 drive a 50Ω transmission line directly?
The SN74LVC541ADGVRE4 can drive a 50Ω transmission line when used with proper source-series termination (e.g., 22Ω–33Ω resistor placed near the Yx output). Its ±24mA drive strength at 3.0V VCC provides sufficient current to develop ~1.5V across 50Ω, meeting LVCMOS signaling thresholds. Layout guidelines in Section 8.4 mandate trace lengths <12cm and impedance-controlled routing; simulations in Figure 8-2 confirm clean eye diagrams with Rd = 33Ω. Direct connection without termination causes reflections and violates the 50pF capacitive load limit specified in Section 8.2.1.1.
SN74LVC541ADGVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 20-TFSOP (0.173", 4.40mm 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TVSOP
SN74LVC541ADGVRE4 FAQ
1.How can I place an order for SN74LVC541ADGVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC541ADGVRE4 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 SN74LVC541ADGVRE4 reliable?
The price and inventory of SN74LVC541ADGVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC541ADGVRE4 is usually 5 days.
3.What payment methods are accepted for SN74LVC541ADGVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC541ADGVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC541ADGVRE4?
SN74LVC541ADGVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC541ADGVRE4 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 SN74LVC541ADGVRE4?
For technical support, including SN74LVC541ADGVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC541ADGVRE4 requirements.
6.How does Aetrix verify that SN74LVC541ADGVRE4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC541ADGVRE4 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 SN74LVC541ADGVRE4 meets industry standards.
7.What is the process for return or replacement of SN74LVC541ADGVRE4?
All SN74LVC541ADGVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC541ADGVRE4, 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 SN74LVC541ADGVRE4 part is unused and in its original packaging.
Return procedure for SN74LVC541ADGVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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