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Nexperia USA Inc. 74LVC541ABQ,115
- Part No.:
- 74LVC541ABQ,115
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74LVC541ABQ,115.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,861
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Product details
Overview
74LVC541ABQ,115 from Nexperia is an octal 3-state buffer/line driver with dual output enables (OE1, OE2), 5 V-tolerant I/O, and Schmitt-trigger inputs. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features IOFF partial power-down protection. Used in bus interface and level-shifting applications in industrial control and embedded data acquisition.
For engineers reviewing the 74LVC541ABQ,115 datasheet, 74LVC541ABQ,115 pinout, 74LVC541ABQ,115 application, or 74LVC541ABQ,115 equivalent, key selection criteria include 5 V-tolerant input voltage range (–0.5 V to +5.5 V), propagation delay ≤6.5 ns at 3.3 V, IOFF leakage <±10 μA at VCC = 0 V, and DHVQFN20 thermal-enhanced package compatibility with high-density PCB layouts.
Technical Context
This device implements dual independent 3-state enable logic (active-low OE1/OE2) controlling two groups of four buffered outputs each, enabling selective bus partitioning. Its Schmitt-trigger inputs accept slow-rising signals down to 10 ns/V transition rate, while IOFF circuitry actively disables outputs during power-down to block backflow current.
The DHVQFN20 package (SOT764-1) provides 20 terminals in a 2.5 × 4.5 × 0.85 mm footprint with exposed thermal pad, supporting thermal dissipation up to 500 mW at ≤111 °C ambient before derating. Static drive strength is specified at –24 mA VOH and 24 mA VOL under 3.0 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains |
| Input Voltage Range | –0.5 V to +5.5 V - Supports 5 V-tolerant operation without external level shifters |
| Propagation Delay | ≤6.5 ns at VCC = 3.3 V - Ensures timing compliance in 100 MHz+ parallel bus systems |
| IOFF Leakage Current | <±10 μA at VCC = 0 V - Prevents damaging backflow during hot-swap or partial power-down |
| Operating Temperature | –40 °C to +125 °C - Qualified for extended industrial and automotive-adjacent environments |
| ESD Protection | HBM >2000 V, CDM >1000 V - Robust handling in automated assembly and field service |
| Power Dissipation | 500 mW max (derated above 111 °C) - Sustains continuous operation in thermally constrained enclosures |
Pinout & Package
DHVQFN20 package (SOT764-1): 2.5 × 4.5 × 0.85 mm body, no leads, 20-terminal quad flat layout with exposed thermal pad (GND-connected or floating per design).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Y6 | Buffered output for A6 input; 3-state controlled by OE1/OE2 |
| 2 | A6 | Data input for Y6 output; Schmitt-triggered for noise immunity |
| 3 | A7 | Data input for Y7 output; compatible with 5 V TTL and CMOS sources |
| 4 | Y5 | Buffered output for A5 input; shares OE1/OE2 enable logic |
| 5 | A5 | Data input for Y5 output; 5 V tolerant up to +5.5 V |
| 6 | Y4 | Buffered output for A4 input; driven only when OE1=LOW or OE2=LOW |
| 7 | A4 | Data input for Y4 output; VIH threshold 2.0 V at VCC ≥2.7 V |
| 8 | Y3 | Buffered output for A3 input; high-impedance when both OEs HIGH |
| 9 | A3 | Data input for Y3 output; VOL ≤0.55 V at 24 mA sink |
| 10 | Y2 | Buffered output for A2 input; supports bus hold-off during disable |
| 11 | A2 | Data input for Y2 output; II input leakage <±5 μA at 5.5 V |
| 12 | Y1 | Buffered output for A1 input; VOH ≥2.2 V at –24 mA source |
| 13 | A1 | Data input for Y1 output; Δt/ΔV min 10 ns/V at VCC ≥2.7 V |
| 14 | Y0 | Buffered output for A0 input; matches standard 74-series pinout mapping |
| 15 | A0 | Data input for Y0 output; functional across full –40 °C to +125 °C range |
| 16 | OE2 | Active-low output enable for Y0–Y3 group; independent of OE1 |
| 17 | GND | Ground reference (0 V); thermal pad may be connected to GND plane |
| 18 | Y7 | Buffered output for A7 input; final output in Y0–Y7 sequence |
| 19 | OE1 | Active-low output enable for Y4–Y7 group; enables bus segmentation |
| 20 | VCC | Positive supply (1.2–3.6 V); decoupling required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant I/O | Inputs and outputs withstand –0.5 V to +5.5 V regardless of VCC setting, eliminating external clamping diodes |
| Dual 3-state enables | OE1 controls Y4–Y7; OE2 controls Y0–Y3 - enables split-bus isolation in multi-master systems |
| Schmitt-trigger inputs | Hysteresis ≥0.3 V at VCC = 3.3 V - rejects noise on slow-rising control lines (e.g., reset, enable) |
| IOFF partial power-down | Outputs disabled and leakage limited to ±10 μA when VCC = 0 V - safe for live insertion into powered backplanes |
| JEDEC-compliant voltage ranges | Fully specified for JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) |
Applications
| Industrial Bus Interface | Embedded Level Translation |
|---|---|
Use Scenario: Isolating microcontroller GPIO banks from noisy 5 V sensor buses in PLC I/O modules. IC Role / Device Role / Timing Role: Octal buffer providing direction-controlled signal conditioning and 3-state bus arbitration. Use Value: Dual OE pins allow independent gating of analog front-end and digital peripheral buses, reducing cross-talk during concurrent access. | Use Scenario: Interfacing a 3.3 V FPGA I/O bank to legacy 5 V UART peripherals in medical diagnostic equipment. IC Role / Device Role / Timing Role: Voltage-level translator with Schmitt-trigger inputs tolerating slow RS-232 edge rates. Use Value: Eliminates need for discrete resistor-divider networks or dedicated level-shifters, saving board space and BOM cost. |
| Mixed-Voltage Memory Expansion | Hot-Swappable Module Control |
Use Scenario: Driving address/data lines between a 1.8 V SoC and 3.3 V SRAM in portable test instrumentation. IC Role / Device Role / Timing Role: Bidirectional buffer with 5 V-tolerant inputs ensuring compatibility with multiple memory vendors' timing specs. Use Value: Propagation delay ≤5.1 ns at 3.3 V meets 100 MHz synchronous SRAM access requirements without added timing margin. | Use Scenario: Enabling/disabling power rails and status signals for field-replaceable compute modules in telecom base stations. IC Role / Device Role / Timing Role: IOFF-protected buffer preventing backfeed during module insertion/removal under power. Use Value: IOFF leakage <±10 μA at VCC = 0 V ensures no current flows into unpowered modules, meeting IEC 61000-4-2 system-level ESD robustness. |
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 | TSSOP20 package (SOT360-1); 4.4 mm body width; 10.0 mW/K thermal derating above 100 °C | Lower profile but reduced thermal mass; less suitable for sustained 500 mW operation in sealed enclosures | Select for space-constrained boards where thermal load is moderate and reflow compatibility with fine-pitch processes is critical |
| 74LVC541AD,118 | SO20 package (SOT163-1); 7.5 mm body width; 12.3 mW/K derating above 109 °C; higher parasitic inductance | Through-hole compatible footprint; longer lead inductance limits >50 MHz operation in high-speed routing | Select for legacy designs requiring SOIC hand-soldering or compatibility with existing SO20 footprints and test fixtures |
Compared with SN74LVC541APWR and 74LVC541AD,118, the 74LVC541ABQ,115 offers superior thermal performance in compact layouts due to its DHVQFN20 exposed-pad construction, while maintaining identical logic function, voltage tolerance, and timing behavior - making it optimal for thermally dense industrial controllers.
Availability
74LVC541ABQ,115 is available at Aetrix Electronics and suitable for industrial bus interface, embedded level translation, mixed-voltage memory expansion, and hot-swappable module control requiring stable component supply across extended temperature ranges.
Supply support for 74LVC541ABQ,115 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
Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.
The 74LVC541A series belongs to Nexperia's low-voltage CMOS logic portfolio, designed specifically for robust mixed-voltage interfacing in space- and power-constrained embedded systems operating across –40 °C to +125 °C.
FAQ
What is the maximum input voltage the 74LVC541ABQ,115 can tolerate when VCC = 1.8 V?
The device supports input voltages from –0.5 V to +5.5 V regardless of VCC level. At VCC = 1.8 V, inputs remain fully 5 V-tolerant per Table 4 limiting values and Section 1 general description - enabling direct connection to 5 V sensors or microcontrollers without external protection components.
How does the IOFF feature behave during system power sequencing?
When VCC drops to 0 V, the IOFF circuitry forces all outputs into high-impedance state with leakage current limited to ±10 μA (Table 6), preventing backflow from powered buses into the unpowered device. This behavior is verified across –40 °C to +125 °C and satisfies JEDEC JESD78 latch-up immunity requirements.
Can OE1 and OE2 be tied together for single-enable operation?
Yes - OE1 and OE2 may be paralleled to a common control signal without adverse effects. The input clamp current rating (±50 mA) and VIH/VIL thresholds ensure reliable logic-level recognition. Functional Table 3 confirms identical output behavior when either or both enables are asserted LOW.
Is the thermal pad on the DHVQFN20 package electrically connected internally?
No - the exposed thermal pad (terminal 1 index area) has no internal electrical connection. Per Section 5.1 pinning, it may be left floating or soldered to a GND plane for thermal enhancement, but must not be connected to any voltage other than GND to avoid violating absolute maximum ratings.
74LVC541ABQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-VFQFN Exposed Pad
- 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:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DHVQFN (4.5x2.5)
74LVC541ABQ,115 FAQ
1.How can I place an order for 74LVC541ABQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC541ABQ,115 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 74LVC541ABQ,115 reliable?
The price and inventory of 74LVC541ABQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC541ABQ,115 is usually 5 days.
3.What payment methods are accepted for 74LVC541ABQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC541ABQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC541ABQ,115?
74LVC541ABQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC541ABQ,115 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 74LVC541ABQ,115?
For technical support, including 74LVC541ABQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC541ABQ,115 requirements.
6.How does Aetrix verify that 74LVC541ABQ,115 is sourced from the original manufacturer or authorized distributors?
All 74LVC541ABQ,115 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 74LVC541ABQ,115 meets industry standards.
7.What is the process for return or replacement of 74LVC541ABQ,115?
All 74LVC541ABQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC541ABQ,115, 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 74LVC541ABQ,115 part is unused and in its original packaging.
Return procedure for 74LVC541ABQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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