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Nexperia USA Inc. 74VHCT541BQ-Q100X
- Part No.:
- 74VHCT541BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74VHCT541BQ-Q100X.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,344
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Product details
Overview
74VHCT541BQ-Q100 from Nexperia is an automotive-grade octal non-inverting 3-state buffer/line driver in DHVQFN20 package, operating from 4.5 V to 5.5 V, with TTL-compatible inputs, 8.0 mA output drive, propagation delay ≤7.0 ns (VCC = 5 V, CL = 50 pF), and AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It enables bidirectional bus isolation in automotive body control modules.
For engineers reviewing the 74VHCT541BQ-Q100 datasheet, 74VHCT541BQ-Q100 pinout, 74VHCT541BQ-Q100 application, or 74VHCT541BQ-Q100 equivalent, key selection considerations include TTL-level input compatibility, 3-state dual-OE control timing (enable/disable <12.5 ns), thermal-enhanced DHVQFN packaging for under-hood reliability, and automotive-qualified static/dynamic performance across full temperature range.
Technical Context
This device implements two independent active-low output enable inputs (OE0, OE1) controlling eight non-inverting buffered outputs (Y0–Y7) driven by corresponding inputs (A0–A7). All inputs feature Schmitt-trigger action and tolerate voltages up to 5.5 V regardless of VCC level.
It operates strictly as a digital buffer-not a level shifter or translator-with defined HIGH/LOW input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) and guaranteed VOL ≤0.55 V at 8.0 mA sink current. Output disable behavior is symmetric: either OE0 or OE1 asserted LOW places all Yn outputs in high-impedance state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures stable operation across automotive battery rail variations including cold-crank transients. |
| Input Compatibility | TTL-level - Accepts standard 0.8 V / 2.0 V logic thresholds, enabling direct interface with legacy microcontrollers and ASICs. |
| Output Drive | ±8.0 mA - Sufficient to drive 50 pF loads with ≤7.0 ns propagation delay, supporting high-speed CAN/LIN subsystem interconnects. |
| Enable Timing | ten ≤12.5 ns, tdis ≤12.5 ns (CL = 50 pF) - Enables fast bus arbitration and dynamic channel switching in multiplexed sensor networks. |
| Temperature Range | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood placement in engine control units and ADAS domain controllers. |
| ESD Robustness | HBM >2000 V, MM >200 V - Mitigates field failures during assembly and service in low-humidity environments. |
| Power Dissipation | Ptot = 500 mW (derated above 111 °C) - Supports continuous operation in thermally constrained DHVQFN20 packages with side-wettable flanks. |
Pinout & Package
DHVQFN20 package (SOT764-1): 2.5 × 4.5 × 0.85 mm body, no leads, 20 terminals, side-wettable flanks for AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE0) | Output enable input | Active-LOW control for all eight outputs; assertion forces Y0–Y7 into high-impedance state. |
| 2–9 (A0–A7) | Data inputs | Non-inverting buffer inputs; Schmitt-triggered for noise immunity on noisy automotive harnesses. |
| 10 (GND) | Ground reference | 0 V return path; thermal pad underneath package must be connected to PCB ground plane for thermal management. |
| 11–18 (Y0–Y7) | Data outputs | 3-state buffered outputs; drive capability ±8.0 mA with VOL ≤0.55 V and VOH ≥3.70 V at VCC = 4.5 V. |
| 19 (OE1) | Output enable input | Redundant active-LOW enable; either OE0 or OE1 asserted disables all outputs-supports fault-tolerant control schemes. |
| 20 (VCC) | Supply voltage | Primary power rail; decoupling capacitor (100 nF) required within 3 mm of pin for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with lifetime reliability testing per automotive stress standards. |
| Dual independent OE inputs | OE0 and OE1 provide redundant or split-bus control logic without external gating, reducing BOM count in safety-critical paths. |
| Input overvoltage tolerance | Accepts VI up to 5.5 V independent of VCC - eliminates need for external level-shifting when interfacing with 5 V sensors or legacy peripherals. |
| Side-wettable flanks (SWF) | Enables automated optical inspection of solder joints on bottom-terminated DHVQFN package, improving manufacturing yield in automotive SMT lines. |
| Balanced propagation delays | tpd variation ≤1.5 ns across all eight channels - ensures deterministic timing in parallel data paths such as ADC result latching or display column drivers. |
Applications
| Body Control Module (BCM) | Instrument Cluster Interface |
|---|---|
Use Scenario: Isolating microcontroller GPIO banks from high-current door lock actuators and window motor drivers. IC Role / Device Role: Octal 3-state buffer providing bidirectional signal conditioning and bus contention prevention between MCU and power driver ICs. Use Value: Prevents back-driving damage during power sequencing; dual OE inputs allow independent control of left/right vehicle side circuits. |
Use Scenario: Driving segmented LCD backlight rows and SPI-controlled LED indicators from a single microcontroller port. IC Role / Device Role: Level-translating buffer with TTL-compatible inputs, translating 3.3 V MCU outputs to robust 5 V drive for display segment drivers. Use Value: Eliminates discrete transistor arrays; Schmitt-trigger inputs suppress EMI-induced glitches on long ribbon cables inside dashboard assemblies. |
| ADAS Camera Sensor Hub | Engine Control Unit (ECU) Diagnostics Port |
Use Scenario: Multiplexing multiple camera sensor data lanes onto shared MIPI CSI-2 serializer inputs while maintaining signal integrity. IC Role / Device Role: Low-skew octal buffer isolating sensor I/O from host processor, with fast enable/disable for lane arbitration. Use Value: Propagation delay matching ≤1.5 ns ensures synchronized sampling across all eight data lines, critical for pixel alignment accuracy. |
Use Scenario: Providing isolated, noise-immune connection between ECU's diagnostic UART and external OBD-II connector pins. IC Role / Device Role: 3-state line driver buffering UART TX/RX signals, with OE controlled by ECU firmware to prevent bus conflicts during reprogramming. Use Value: HBM >2000 V ESD rating protects against technician-handling events; thermal QFN package withstands under-hood ambient temperatures. |
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 |
|---|---|---|---|
| 74LVC541APW-Q100 | CMOS input (1.7 V–5.5 V), lower drive (±24 mA), faster tpd (≤5.2 ns), same DHVQFN20 package | Requires CMOS-level input sources; unsuitable for direct TTL interface without pull-up or translation | Select when interfacing with modern 1.8 V/3.3 V MCUs and higher-speed buses where TTL compatibility is unnecessary. |
| SN74HCT541QPWRQ1 | Same TTL input spec, SOIC-20 package (SOT163-1), higher Ptot (750 mW), no side-wettable flanks | Larger footprint; lacks AOI support and thermal performance of DHVQFN; better suited for prototyping or low-volume repair | Select for legacy board redesigns requiring pin-for-pin SOIC replacement or where reflow process does not support QFN handling. |
Compared with 74LVC541APW-Q100, the 74VHCT541BQ-Q100 provides guaranteed TTL input compatibility essential for mixed-voltage systems; compared with SN74HCT541QPWRQ1, it delivers superior thermal performance and automated assembly support via DHVQFN20 with side-wettable flanks.
Availability
74VHCT541BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, ADAS sensor hubs, and engine control unit diagnostics requiring stable component supply with AEC-Q100 compliance and extended temperature operation.
Supply support for 74VHCT541BQ-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 global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions, with leadership in automotive-qualified components and advanced packaging technologies.
The 74VHCT series targets automotive and industrial applications demanding robust digital interfacing, featuring TTL-compatible inputs, AEC-Q100 qualification, and thermally enhanced packages optimized for under-hood and chassis-mounted electronics.
FAQ
Is the 74VHCT541BQ-Q100 pin-compatible with the 74VHC541BQ-Q100?
Yes - both share identical pinout, package (DHVQFN20), and functional architecture. The key difference is input threshold: 74VHCT541BQ-Q100 accepts TTL levels (VIH = 2.0 V min), while 74VHC541BQ-Q100 requires CMOS levels (VIH = 3.85 V min at VCC = 5.5 V). Swapping requires verifying source logic family compatibility.
Can OE0 and OE1 be tied together for single-enable operation?
Yes - OE0 and OE1 may be paralleled to a single control signal without external logic. The device's functional table confirms that asserting either OE input LOW disables all outputs; tying them together maintains full 3-state functionality while simplifying routing and reducing GPIO usage.
What is the role of the exposed thermal pad on the DHVQFN20 package?
The exposed pad (terminal 1 index area, labeled GND in Fig. 4) is electrically connected to internal die substrate and must be soldered to a PCB ground plane. It serves dual purposes: thermal dissipation (reducing θJA by ~30%) and EMI suppression. Per datasheet note, it may remain floating only if unsoldered - but soldering is mandatory for rated thermal performance.
Does the 74VHCT541BQ-Q100 support hot insertion or live bus swapping?
No - the device lacks powered-off protection or bus-hold circuitry. Inputs and outputs are not designed for hot-plug operation. Applying signals while VCC is unpowered risks violating absolute maximum ratings (e.g., VI > −0.5 V), potentially causing latch-up or permanent damage. Power sequencing must ensure VCC is stable before applying input signals.
74VHCT541BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHCT
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DHVQFN (4.5x2.5)
74VHCT541BQ-Q100X FAQ
1.How can I place an order for 74VHCT541BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHCT541BQ-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 74VHCT541BQ-Q100X reliable?
The price and inventory of 74VHCT541BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHCT541BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74VHCT541BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHCT541BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHCT541BQ-Q100X?
74VHCT541BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHCT541BQ-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 74VHCT541BQ-Q100X?
For technical support, including 74VHCT541BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHCT541BQ-Q100X requirements.
6.How does Aetrix verify that 74VHCT541BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74VHCT541BQ-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 74VHCT541BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74VHCT541BQ-Q100X?
All 74VHCT541BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74VHCT541BQ-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 74VHCT541BQ-Q100X part is unused and in its original packaging.
Return procedure for 74VHCT541BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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