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Texas Instruments SN74LV541ADBRG4
- Part No.:
- SN74LV541ADBRG4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
SN74LV541ADBRG4.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,058
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Product details
Overview
SN74LV541ADBRG4 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 from 2 V to 5.5 V VCC, delivers 6 ns max propagation delay at 5 V, supports Ioff partial-power-down mode, and features dual active-low output-enable inputs (OE1/OE2) for independent group control.
For engineers reviewing the SN74LV541ADBRG4 datasheet, SN74LV541ADBRG4 pinout, SN74LV541ADBRG4 application, or SN74LV541ADBRG4 equivalent, this device is selected for high-speed, low-voltage bus driving where controlled output enable timing, ground-bounce mitigation (<0.8 V at 3.3 V), and robust ESD protection (±3000 V HBM) are critical in industrial and consumer electronics designs.
Technical Context
The SN74LV541ADBRG4 implements eight independent non-inverting buffers, each with CMOS-compatible input thresholds and balanced push-pull 3-state outputs. Its dual OE architecture enables two groups of four channels to be enabled/disabled separately, supporting flexible bus arbitration schemes without external logic.
It integrates Ioff circuitry that disables all outputs when VCC = 0 V, preventing backflow current during hot-insertion or power sequencing. The device meets JESD17 latch-up immunity (>250 mA) and uses standard TTL/CMOS-compatible voltage thresholds across its full 2–5.5 V operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC 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. |
| Max tpd @ 5 V | 6 ns - Ensures sub-10 ns signal propagation for high-speed address/data bus buffering in servers and network switches. |
| Ioff Current | ≤5 µA - Guarantees safe isolation during partial power-down, protecting downstream circuits from reverse current. |
| VOH / VOL @ 3.3 V | VOH ≥2.48 V, VOL ≤0.44 V @ 8 mA - Provides noise margins >0.7 V under typical load, ensuring reliable logic-level compatibility. |
| HBM ESD Rating | ±3000 V - Meets industrial handling requirements and reduces need for external protection on board-level I/O lines. |
| Operating Temp | –40°C to +125°C - Supports deployment in automotive infotainment, surveillance cameras, and smart grid infrastructure. |
| Input Thresholds | VIH = VCC × 0.7, VIL = VCC × 0.3 - Maintains consistent switching points across supply voltages for predictable timing behavior. |
Pinout & Package
SN74LV541ADBRG4 is packaged in a 20-pin SSOP (DB) package measuring 7.2 mm × 7.8 mm, with gull-wing leads and exposed thermal pad not present (RGY/RKS packages have pad; DB does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable inputs - Either high disables all eight outputs; used for group-selectable 3-state control. |
| 2–9 | A1–A8 | Buffer inputs - Accept CMOS/TTL-compatible signals; must be tied to VCC or GND if unused to prevent floating. |
| 11–18 | Y1–Y8 | Non-inverting 3-state outputs - Drive buses or registers; high-impedance state prevents contention during shared-bus operation. |
| 10 | GND | Ground reference - Sinks total output and supply current; requires low-impedance PCB plane for noise control. |
| 20 | VCC | Positive supply - Powers internal logic and output drivers; requires local 0.1 µF bypass capacitor per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage operation | Inputs and outputs tolerate 0–5.5 V regardless of VCC - Enables seamless interfacing between disparate voltage rails (e.g., 3.3 V MCU to 5 V peripheral). |
| Output ground bounce (VOLP) | <0.8 V at VCC = 3.3 V - Reduces simultaneous switching noise, improving signal integrity on dense PCBs with multiple drivers. |
| Output VOH undershoot (VOHV) | >2.3 V at VCC = 3.3 V - Preserves high-level noise margin during fast transitions, critical for reliable sampling by downstream receivers. |
| Partial-power-down support | Ioff ≤5 µA - Allows safe insertion/removal in live backplanes and modular systems without disrupting adjacent powered components. |
| Latch-up immunity | >250 mA per JESD17 - Ensures robustness against transient overcurrent events in harsh electrical environments like industrial motor controls. |
Applications
| Smart Grid Meters | Surveillance Camera Systems |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from high-capacitance metering bus lines carrying pulse-width modulated energy data. IC Role / Device Role / Timing Role: Octal buffer providing bidirectional signal conditioning and 3-state isolation between MCU and isolated RS-485 transceivers. Use Value: Prevents bus contention during firmware updates and enables deterministic timing with 6 ns max tpd at 5 V for time-critical tariff switching. |
Use Scenario: Driving multiple video decoder ASIC address lines from a single ARM processor in multi-sensor camera hubs. IC Role / Device Role / Timing Role: Address register buffer with dual OE control allowing selective activation of sensor-specific memory banks. Use Value: Eliminates need for discrete pull-ups and ensures clean 3.3 V logic levels across 50 pF loads, meeting MIPI CSI-2 timing budgets. |
| Network Switch Backplanes | Automotive Infotainment Head Units |
Use Scenario: Buffering control signals between switch fabric ASICs and PHY layer devices operating at different supply voltages. IC Role / Device Role / Timing Role: Voltage-translating bus driver enabling interoperability between 2.5 V packet scheduler and 3.3 V Ethernet PHYs. Use Value: Achieves <0.8 V ground bounce and ±3000 V HBM protection, reducing bit error rates in high-density switch PCB layouts. |
Use Scenario: Interfacing infotainment SoC GPIOs to legacy CAN/LIN transceiver control pins requiring 5 V logic levels. IC Role / Device Role / Timing Role: Level-shifting buffer with Ioff support for safe hot-plug of USB-C modules during vehicle runtime. Use Value: Enables 5 V output drive while maintaining 2.5 V input compatibility and –40°C to +125°C operation for under-dash mounting. |
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 VCC min (1.65 V), higher speed (4.5 ns @ 3.3 V), no Ioff support | Better suited for ultra-low-voltage portable designs but lacks partial-power-down capability | Select when operating below 2 V or prioritizing speed over hot-swap safety |
| 74LVX541M | Narrower VCC range (2.7–3.6 V), lower drive (±12 mA), same 20-pin SOIC package | Optimized for 3.3 V-only systems with reduced power consumption and smaller footprint | Choose for cost-sensitive 3.3 V-only applications where 5.5 V tolerance and Ioff are unnecessary |
Compared with SN74LV541ADBRG4, SN74LVC541APWR offers faster performance at lower voltage but sacrifices Ioff-based power sequencing safety, while 74LVX541M trades voltage flexibility and drive strength for lower static power in fixed 3.3 V environments.
Availability
SN74LV541ADBRG4 is available at Aetrix Electronics and suitable for smart grid meters, surveillance camera systems, network switch backplanes, and automotive infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LV541ADBRG4 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 for industrial, automotive, and consumer markets.
The SN74LV541ADBRG4 belongs to TI's LV logic family, engineered for low-voltage, high-noise-immunity digital interfacing in mixed-supply systems where reliability across wide temperature and voltage ranges is essential.
FAQ
What is the maximum capacitive load SN74LV541ADBRG4 can drive while maintaining specified timing?
The SN74LV541ADBRG4 is characterized for loads up to 50 pF in its switching specifications. At CL = 50 pF and VCC = 5 V, tpd remains ≤8 ns. Driving larger capacitances increases propagation delay and may degrade VOL/VOH margins; TI recommends limiting total load to 50 pF for guaranteed compliance with datasheet timing and voltage specs.
How should unused inputs be terminated on SN74LV541ADBRG4?
All unused inputs on SN74LV541ADBRG4 must be tied to either VCC or GND to prevent floating states that cause excessive ICC and potential oscillation. TI specifies a 10-kΩ pull-up or pull-down resistor as typical; direct connection is acceptable if the input is permanently unused. Leaving inputs unconnected violates recommended operating conditions and risks functional instability.
Does SN74LV541ADBRG4 support hot-swap or live-insertion applications?
Yes, SN74LV541ADBRG4 supports hot-swap via its Ioff feature: when VCC = 0 V, output leakage is limited to ≤5 µA, preventing damaging backflow current into powered downstream circuits. This allows safe insertion into live backplanes - provided OE1 and OE2 are held high (disabled) during insertion to maintain outputs in high-impedance state.
What is the purpose of the dual OE inputs (OE1 and OE2) on SN74LV541ADBRG4?
OE1 and OE2 are active-low inputs controlling two independent groups of four buffers each (A1–A4/Y1–Y4 and A5–A8/Y5–Y8). If either OE is high, its corresponding group enters high-impedance state. This enables selective bus arbitration - for example, isolating memory-mapped peripherals while keeping communication interfaces active - without requiring external gating logic.
Can SN74LV541ADBRG4 operate reliably at 2.5 V VCC?
Yes, SN74LV541ADBRG4 is fully specified from 2 V to 5.5 V. At VCC = 2.5 V, it delivers tpd ≤13.5 ns (CL = 15 pF), VIH = 1.75 V, VIL = 0.75 V, and VOH/VOL meet all electrical characteristics. Its balanced CMOS outputs maintain symmetrical drive strength down to 2 V, making it suitable for battery-powered or low-power industrial sensors.
SN74LV541ADBRG4 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
SN74LV541ADBRG4 FAQ
1.How can I place an order for SN74LV541ADBRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LV541ADBRG4 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 SN74LV541ADBRG4 reliable?
The price and inventory of SN74LV541ADBRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV541ADBRG4 is usually 5 days.
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SN74LV541ADBRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LV541ADBRG4 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 SN74LV541ADBRG4?
For technical support, including SN74LV541ADBRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV541ADBRG4 requirements.
6.How does Aetrix verify that SN74LV541ADBRG4 is sourced from the original manufacturer or authorized distributors?
All SN74LV541ADBRG4 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 SN74LV541ADBRG4 meets industry standards.
7.What is the process for return or replacement of SN74LV541ADBRG4?
All SN74LV541ADBRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV541ADBRG4, 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 SN74LV541ADBRG4 part is unused and in its original packaging.
Return procedure for SN74LV541ADBRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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