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Nexperia USA Inc. 74ALVC541BQ-Q100X
- Part No.:
- 74ALVC541BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74ALVC541BQ-Q100X.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
74ALVC541BQ-Q100 from Nexperia is an automotive-grade octal buffer/line driver with dual 3-state outputs (OE0 and OE1), Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and operation across 1.65 V to 3.6 V supply at -40 °C to +125 °C. It drives 8-bit parallel data paths in automotive body control modules, infotainment interconnects, and ADAS sensor interface buses.
For engineers reviewing the 74ALVC541BQ-Q100 datasheet, 74ALVC541BQ-Q100 pinout, 74ALVC541BQ-Q100 application, or 74ALVC541BQ-Q100 equivalent, key selection criteria include dual enable timing (ten ≤ 5.6 ns @ 3.6 V), IOFF leakage < ±10 μA at VCC = 0 V, Schmitt-trigger input hysteresis, DHVQFN20 thermal performance, and AEC-Q100 Grade 1 qualification.
Technical Context
This device implements two independent active-low output enables controlling separate groups of four buffered outputs, enabling flexible bus partitioning. Its CMOS architecture delivers low static current (ICC ≤ 80 μA @ 3.6 V) and supports TTL-level interfacing despite 1.65–3.6 V operation.
The IOFF circuit actively disables outputs during power-down to block backflow current, while Schmitt-trigger inputs tolerate slow-rising signals (Δt/ΔV down to 10 ns/V at 3.6 V), making it suitable for noisy automotive environments with long trace routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.65 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, 3.3 V logic domains without level shifters. |
| Operating temperature | -40 °C to +125 °C - Qualified for under-hood and powertrain-adjacent automotive applications. |
| Propagation delay | ≤ 3.5 ns @ VCC = 3.0–3.6 V - Supports high-speed parallel data transfer up to ~140 MHz clock-equivalent rates. |
| IOFF leakage | ±10 μA max @ VCC = 0 V - Prevents damaging back-current when one side of a bus is powered down. |
| Input hysteresis | Schmitt-trigger action - Rejects noise on slow-rising control lines (e.g., wake-up signals, reset nets). |
| ESD rating | HBM > 2000 V, CDM > 1000 V - Robust handling during PCB assembly and in-vehicle ESD events. |
| AEC-Q100 grade | Grade 1 - Certified for automotive use per AEC standard, including HTOL, TC, HAST, and ESD stress tests. |
Pinout & Package
DHVQFN20 package (SOT764-1): 2.5 × 4.5 × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, no leads, thermal pad (non-electrical, optional GND connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Y6) | Data output | Active-high buffered copy of A6; 3-state when OE0 or OE1 is HIGH. |
| 2 (A6) | Data input | CMOS input with Schmitt trigger; tolerant of slow edges and overvoltage to 3.6 V. |
| 3 (A7) | Data input | Input for Y7; shares same Schmitt and overvoltage tolerance as A0–A6. |
| 4 (Y5) | Data output | Buffered output for A5; driven only when corresponding OE is LOW. |
| 5 (A5) | Data input | One of eight inputs; VIH/VIL thresholds scale with VCC (e.g., VIH ≥ 2.0 V @ 3.6 V). |
| 6 (Y4) | Data output | Output for A4; high-impedance state ensures bus isolation when disabled. |
| 7 (A4) | Data input | Input with 3.5 pF typical CI - minimizes capacitive loading on driving source. |
| 8 (Y3) | Data output | Driven by A3; VOL ≤ 0.55 V @ 24 mA sink ensures solid LOW under heavy load. |
| 9 (A3) | Data input | Input with latch-up immunity > 250 mA per JESD78 Class II.A. |
| 10 (Y2) | Data output | Output for A2; VOH ≥ 2.2 V @ 24 mA source maintains valid HIGH at full drive. |
| 11 (A2) | Data input | Input referenced to GND; VI = 0 V to 3.6 V compatible with mixed-voltage systems. |
| 12 (Y1) | Data output | Buffered A1; tdis ≤ 5.3 ns @ 3.6 V enables fast bus release. |
| 13 (A1) | Data input | One of two inputs tied to OE1-controlled outputs (Y0–Y7 grouped by OE0/OE1). |
| 14 (Y0) | Data output | Lowest-order output; enabled by OE0 (pin 19) or OE1 (pin 11) - both must be LOW. |
| 15 (A0) | Data input | First input in 8-bit set; identical electrical specs to A1–A7. |
| 16 (OE1) | Output enable | Active-LOW control for Y0–Y7; HIGH forces all associated outputs to high-Z. |
| 17 (GND) | Ground reference | 0 V return path; thermal pad (pin 1 index area) is electrically isolated unless explicitly connected. |
| 18 (Y7) | Data output | Highest-order output; matches Y0–Y6 timing and drive strength. |
| 19 (OE0) | Output enable | Second active-LOW enable; used with OE1 to partition output groups or provide redundancy. |
| 20 (VCC) | Supply voltage | Power rail; total power dissipation derates linearly at 12.9 mW/K above 111 °C. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | OE0 and OE1 allow selective disabling of output subsets - critical for multi-master bus arbitration. |
| IOFF partial power-down | Blocks reverse current flow when VCC = 0 V, protecting downstream devices during hot-swap or sleep mode. |
| Schmitt-trigger inputs | Input hysteresis rejects noise on long harnesses or unshielded cables common in vehicle networks. |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation from -40 °C to +125 °C ambient - meets automotive powertrain requirements. |
| DHVQFN20 with side-wettable flanks | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield in automotive PCB assembly. |
Applications
| Body Control Module (BCM) Signal Routing | Infotainment Display Interface |
|---|---|
Use Scenario: Isolating and buffering I/O between microcontroller GPIO banks and external relays, LED drivers, or sensor inputs in a vehicle BCM. IC Role / Device Role / Timing Role: Octal buffer providing level-shifted, noise-immune signal conditioning with fast enable/disable for power-gated subsystems. Use Value: Dual OE pins allow staggered activation of lighting zones or window motor controls, reducing inrush current during wake-up sequences. | Use Scenario: Driving parallel RGB data lines and control signals (HSYNC/VSYNC/DE) from SoC to TFT display panel in head unit. IC Role / Device Role / Timing Role: Line driver ensuring signal integrity across 10+ cm flex cable runs with minimal skew between bits. Use Value: ≤ 3.5 ns propagation delay and matched rise/fall times maintain timing margins for 24-bit RGB @ 60 Hz refresh. |
| Radar Sensor Data Aggregation | ADAS Camera Interface Buffering |
Use Scenario: Consolidating parallel status outputs (e.g., fault flags, detection zones) from multiple millimeter-wave radar ICs into MCU interrupt lines. IC Role / Device Role / Timing Role: 3-state buffer enabling shared interrupt bus with priority-based arbitration via OE timing. Use Value: IOFF protection prevents backfeed from powered radar units into unpowered MCU domain during partial system shutdown. | Use Scenario: Buffering parallel pixel data and frame sync signals between image sensor and video processor in surround-view camera ECU. IC Role / Device Role / Timing Role: High-drive buffer maintaining signal fidelity over 5–8 cm PCB traces with 24 mA output capability. Use Value: Schmitt-trigger inputs reject EMI from nearby switching regulators, eliminating false triggers on frame start pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC541AQPWRQ1 | TI part with identical pinout, same AEC-Q100 Grade 1, but higher ICC (max 10 μA vs. 80 μA) and slower tpd (5.5 ns vs. 3.5 ns @ 3.3 V). | Lower static power suits always-on monitoring nodes; slower speed limits use in high-refresh displays. | Select when ultra-low quiescent current outweighs speed requirements in battery-backed modules. |
| 74LVC541APW-Q100 | Nexperia TSSOP20 variant (SOT360-1); same logic, but 0.65 mm pitch, no side-wettable flanks, lower thermal resistance (10.0 mW/K derate vs. 12.9 mW/K). | Better suited for manual rework or legacy TSSOP assembly lines; less robust AOI capability than DHVQFN. | Choose for cost-sensitive non-safety-critical modules where AOI is not mandated and board space allows larger footprint. |
Compared with SN74LVC541AQPWRQ1, the 74ALVC541BQ-Q100 offers 35% faster propagation and higher drive strength; versus 74LVC541APW-Q100, it provides superior solder-joint inspection capability and slightly better thermal performance in compact layouts.
Availability
74ALVC541BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment display interfaces, and ADAS sensor aggregation requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for 74ALVC541BQ-Q100 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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components optimized for automotive, industrial, and mobile applications.
The 74ALVC logic family targets automotive signal integrity and power efficiency, delivering advanced features like IOFF and Schmitt triggers within AEC-Q100 qualified packages for harsh-environment digital interfacing.
FAQ
What is the function of the thermal pad on the DHVQFN20 package?
The exposed thermal pad (pin 1 index area) in the SOT764-1 package is electrically isolated and has no mandatory connection. If soldered, it must remain floating or connect to GND - it serves only thermal conduction, not signal or power return. No electrical functionality depends on its use.
Can OE0 and OE1 be tied together for single-enable operation?
Yes - OE0 and OE1 may be paralleled to simplify control logic, but doing so eliminates independent group enable capability. The device will behave as a standard octal buffer with one 3-state control. Input loading increases slightly due to dual gate capacitance, but remains within spec.
How does the IOFF feature protect during partial power-down?
When VCC = 0 V, the IOFF circuit disables all outputs regardless of OE state, limiting OFF-state leakage to ±10 μA maximum. This prevents reverse current from externally powered buses flowing through the device into the unpowered VCC rail - avoiding latch-up or damage to upstream supplies.
Is the 74ALVC541BQ-Q100 compatible with 5 V-tolerant systems?
No - inputs are overvoltage tolerant to 3.6 V only, and outputs swing rail-to-rail (0 V to VCC). Direct connection to 5 V logic violates absolute maximum ratings. A level-shifter or resistor-divider network is required for interoperability with 5 V domains.
74ALVC541BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVC
- 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:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DHVQFN (4.5x2.5)
74ALVC541BQ-Q100X FAQ
1.How can I place an order for 74ALVC541BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC541BQ-Q100X 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 74ALVC541BQ-Q100X reliable?
The price and inventory of 74ALVC541BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC541BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74ALVC541BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC541BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC541BQ-Q100X?
74ALVC541BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC541BQ-Q100X 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 74ALVC541BQ-Q100X?
For technical support, including 74ALVC541BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC541BQ-Q100X requirements.
6.How does Aetrix verify that 74ALVC541BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74ALVC541BQ-Q100X 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 74ALVC541BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74ALVC541BQ-Q100X?
All 74ALVC541BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC541BQ-Q100X, 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 74ALVC541BQ-Q100X part is unused and in its original packaging.
Return procedure for 74ALVC541BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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