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Texas Instruments SN74LVC541ADW
- Part No.:
- SN74LVC541ADW
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVC541ADW.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:397
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Product details
Overview
SN74LVC541ADW 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 - used in industrial control backplanes and FPGA I/O expansion.
For engineers reviewing the SN74LVC541ADW datasheet, SN74LVC541ADW pinout, SN74LVC541ADW application, or SN74LVC541ADW equivalent, key selection criteria include 3-state timing behavior, mixed-voltage signal compatibility (5V input/3.3V VCC), thermal performance in SOIC-20, and drive capability up to ±24mA per output at 3V.
Technical Context
The SN74LVC541ADW implements eight independent CMOS buffer channels sharing two synchronized active-low enable inputs (OE1 and OE2), requiring both to be low for output activation. Its balanced push-pull 3-state outputs deliver matched sourcing/sinking strength (±24mA at 3V) and support bidirectional bus contention management via high-impedance isolation.
It integrates partial-power-down protection (Ioff ≤ ±10μA at 5.5V), 5.5V-tolerant inputs compatible with legacy 5V logic, and ground-bounce/undershoot suppression (VOLP < 0.8V, VOHV > 2V at VCC = 3.3V), enabling robust operation in noise-sensitive digital interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65V–3.6V - supports modern low-voltage logic domains while maintaining backward compatibility with 2.5V/3.3V systems |
| Input Voltage Range | 0–5.5V - allows direct interfacing with 5V TTL/CMOS without level shifters |
| Max Propagation Delay | 5.1ns at VCC = 3.3V - enables reliable operation in high-speed data paths up to ~100MHz |
| Output Drive Strength | ±24mA at VCC = 3V - sufficient to drive 50pF loads over 12cm PCB traces per TI layout guidelines |
| Ioff Leakage | ±10μA at VI/VO = 5.5V - prevents back-drive current during hot-swap or partial power-down |
| ESD Rating | ±2000V HBM - meets industrial-grade ESD immunity requirements per ANSI/ESDA/JEDEC JS-001 |
| Operating Temperature | –40°C to +125°C - qualified for extended-temperature industrial and automotive under-hood applications |
Pinout & Package
DW package: SOIC-20, 12.80mm × 10.3mm body, 20-pin surface-mount with gull-wing leads and standard JEDEC MO-001AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OE1, OE2 | Active-low output enable inputs | Both must be low to activate all eight outputs; enables synchronous bus arbitration and power-gating control |
| A1–A8 | Buffer input terminals | Accept 5.5V-tolerant logic signals; each drives corresponding Y output with non-inverting polarity |
| Y1–Y8 | 3-state buffered outputs | Drive high/low actively when enabled; enter high-Z state when either OE is high - prevents bus contention |
| VCC | Positive supply | Single 1.65–3.6V rail powers all buffers and logic; requires local 0.1μF bypass capacitor per TI layout guidance |
| GND | Ground reference | Common return path for all I/O and supply currents; must maintain low-impedance connection to minimize ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5V input tolerance with 3.3V VCC enables seamless integration between legacy and modern logic families without external translators |
| Low ground bounce (VOLP) | <0.8V at VCC = 3.3V ensures stable logic LOW levels during heavy capacitive switching, reducing false triggering |
| Controlled output undershoot (VOHV) | >2V at VCC = 3.3V maintains valid HIGH-level margins during fast edge transitions into mismatched transmission lines |
| Latch-up immunity | >100mA per JESD78 - eliminates risk of destructive latch-up under transient overvoltage or ESD stress |
| Thermal pad option (RKS/VQFN) | Not applicable to DW package - SOIC-20 relies on leadframe conduction; RθJA = 114.8°C/W per datasheet |
Applications
| Industrial Backplane Interface | FPGA I/O Expansion |
|---|---|
Use Scenario: Redriving parallel address/data buses across multi-board chassis with long interconnects. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control synchronizes read/write strobes and isolates master/slave domains during bus arbitration. Use Value: 5.1ns tpd and ±24mA drive ensure signal integrity over 12cm traces; Ioff prevents back-drive damage during board hot-swap. | Use Scenario: Extending limited FPGA GPIO count to drive multiple peripheral modules (ADCs, DACs, sensors). IC Role / Device Role / Timing Role: Level-shifting octal buffer translates 3.3V FPGA outputs to 5V-tolerant peripherals while providing fanout gain. Use Value: 5.5V input tolerance accepts 5V sensor outputs; dual OE pins allow grouped channel enable/disable for power sequencing. |
| Controller Reset Hold Circuit | LED Indicator Driver |
Use Scenario: Holding critical control lines (e.g., nRESET, nINT) in defined state during microcontroller reset sequences. IC Role / Device Role / Timing Role: 3-state buffer latches signal level using OE control, decoupling reset timing from upstream logic propagation delays. Use Value: Guaranteed high-Z disable state (IOZ ≤ ±10μA) prevents unintended assertion; VOL ≤ 0.45V at 4mA ensures clean LED turn-off. | Use Scenario: Driving multiple discrete indicator LEDs from a low-current MCU port. IC Role / Device Role / Timing Role: Current-boosting buffer converts weak GPIO outputs into robust LED sink/source drivers. Use Value: ±24mA per channel supports common-anode/cathode LED configurations; VOLP < 0.8V avoids LED flicker during rapid on/off cycling. |
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 |
|---|---|---|---|
| SN74LVC244ADW | Two independent 4-channel groups with separate OE controls; identical voltage specs and timing | Enables asymmetric enable control (e.g., group A active while group B disabled); less suitable for fully synchronized 8-channel enable | Choose when independent gating of two 4-bit buses is required; not drop-in for SN74LVC541ADW's dual-OE architecture |
| 74LVC541APW | TSSOP-20 package (6.5mm × 6.4mm); same electrical specs but higher thermal resistance (RθJA = 120.3°C/W vs. 114.8°C/W) | Better PCB space efficiency; lower thermal mass limits sustained high-current operation in compact layouts | Prefer for space-constrained designs where SOIC-20 footprint is unavailable; verify thermal derating at full load |
Compared with SN74LVC244ADW and 74LVC541APW, the SN74LVC541ADW provides unified 8-channel enable control ideal for synchronous bus hold applications, superior thermal dissipation in SOIC-20, and proven reliability in industrial backplane deployments.
Availability
SN74LVC541ADW is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, controller reset hold circuits, and LED indicator driving requiring stable component supply across extended temperature ranges.
Supply support for SN74LVC541ADW 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 90 years of innovation in industrial, automotive, and communications markets.
The SN74LVC541ADW belongs to TI's LVC logic family, engineered for low-voltage, high-speed, mixed-signal interfacing in space- and power-constrained embedded systems.
FAQ
What is the maximum operating temperature range for the SN74LVC541ADW?
The SN74LVC541ADW is rated for operation from –40°C to +125°C ambient temperature, meeting extended-temperature requirements for industrial control, automotive under-hood, and harsh-environment applications. This range is validated per TI's production test flow and aligns with the SN74LVC541ADW's SOIC-20 package thermal characteristics (RθJA = 114.8°C/W).
Does the SN74LVC541ADW support 5V logic inputs while powered at 3.3V?
Yes, the SN74LVC541ADW supports 5.5V-tolerant inputs across its full 1.65V–3.6V VCC range. When powered at 3.3V, it reliably accepts 0–5.5V input signals without damage or level-shifting circuitry - a core feature enabling interoperability between 3.3V controllers and legacy 5V peripherals in the SN74LVC541ADW design.
How does the dual-output-enable architecture of the SN74LVC541ADW function?
The SN74LVC541ADW requires both OE1 and OE2 pins to be driven low simultaneously to activate all eight outputs. If either OE is high, all Y1–Y8 outputs enter high-impedance state. This AND-gated enable logic ensures fail-safe bus isolation and simplifies synchronous control in multi-master systems using the SN74LVC541ADW.
What is the recommended bypass capacitor for the SN74LVC541ADW?
Texas Instruments specifies a 0.1μF ceramic capacitor placed as close as possible to the VCC and GND pins of the SN74LVC541ADW. This minimizes high-frequency supply noise and stabilizes transient current demands during output switching. For enhanced noise rejection, a parallel 1μF capacitor may be added - both values are validated in TI's layout guidelines for the SN74LVC541ADW SOIC-20 package.
Can the SN74LVC541ADW drive a 50pF capacitive load while meeting timing specifications?
Yes, the SN74LVC541ADW is characterized to drive ≤50pF loads while maintaining full timing compliance (tpd ≤ 5.1ns at 3.3V). TI's application guidance confirms this limit ensures signal integrity across 12cm PCB traces. Exceeding 50pF increases propagation delay and may cause ringing - verified in SN74LVC541ADW simulation curves and layout recommendations.
SN74LVC541ADW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
SN74LVC541ADW FAQ
1.How can I place an order for SN74LVC541ADW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC541ADW 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 SN74LVC541ADW reliable?
The price and inventory of SN74LVC541ADW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC541ADW is usually 5 days.
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4.How is shipping managed for SN74LVC541ADW?
SN74LVC541ADW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC541ADW 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 SN74LVC541ADW?
For technical support, including SN74LVC541ADW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC541ADW requirements.
6.How does Aetrix verify that SN74LVC541ADW is sourced from the original manufacturer or authorized distributors?
All SN74LVC541ADW 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 SN74LVC541ADW meets industry standards.
7.What is the process for return or replacement of SN74LVC541ADW?
All SN74LVC541ADW units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC541ADW, 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 SN74LVC541ADW part is unused and in its original packaging.
Return procedure for SN74LVC541ADW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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