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Texas Instruments CLVC541AQDWRG4Q1
- Part No.:
- CLVC541AQDWRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CLVC541AQDWRG4Q1.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
CLVC541AQDWRG4Q1 from Texas Instruments is an automotive-qualified octal buffer/driver with 3-state outputs, designed for 2 V to 3.6 V operation, supporting mixed-mode 5-V input/3.3-V VCC interfacing, with max propagation delay of 5.1 ns at 3.3 V and Ioff partial-power-down capability - used in automotive bus buffering and memory address register driving.
For engineers reviewing the CLVC541AQDWRG4Q1 datasheet, CLVC541AQDWRG4Q1 pinout, CLVC541AQDWRG4Q1 application, or CLVC541AQDWRG4Q1 equivalent, key selection factors include its AEC-Q100 qualification, dual active-low 3-state enable (OE1/OE2), ±24 mA drive strength at 3 V, 20-pin SOIC-DW package, and support for hot-insertion via Ioff.
Technical Context
The CLVC541AQDWRG4Q1 implements eight noninverting buffers with independent 2-input AND-gated 3-state control (OE1 and OE2), where either high input forces all Y outputs into high-impedance. Its Ioff circuitry actively disables outputs during power-down to prevent backflow current, enabling safe partial-power-down operation in automotive ECUs.
It accepts 5.5-V-tolerant inputs while operating from 2–3.6 V VCC, enabling level translation between 5-V legacy peripherals and 3.3-V microcontrollers. Propagation delay (tpd) is specified down to 5.1 ns at 3.3 V, with output ground bounce (VOLP) < 0.8 V and VOH undershoot (VOHV) > 2 V at 25°C - critical for noise-immune CAN/LIN subsystem interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 3.6 V - enables direct integration into 3.3-V automotive domain controllers without level-shifter overhead. |
| Input Voltage Tolerance | Up to 5.5 V - allows connection to 5-V sensors or legacy logic without external clamping or translation. |
| Max tpd | 5.1 ns at 3.3 V - supports high-speed data routing in ADAS sensor aggregation paths. |
| IOL / IOH | ±24 mA at 3 V - drives heavy capacitive loads (e.g., 10-cm PCB traces + multiple gate inputs) without signal degradation. |
| Ioff Support | Enabled - prevents damaging reverse current flow when VCC is off, essential for modular ECU power sequencing. |
| Operating Temperature | –40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood engine control and transmission modules. |
| ESD Rating | >2000 V HBM, >200 V MM - meets automotive board-level ESD robustness requirements without added protection diodes. |
Pinout & Package
CLVC541AQDWRG4Q1 uses a 20-pin SOIC (DW) package, 7.5 mm × 12.8 mm body, 2.65 mm max height, 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low 3-state enable inputs; AND logic - either high disables all eight Y outputs, enabling shared bus arbitration. |
| 2–9 | A1–A8 | Noninverting data inputs - accept 5.5-V-tolerant signals for mixed-voltage system interfacing. |
| 11–18 | Y1–Y8 | Buffered noninverting outputs - deliver ±24 mA drive at 3 V, with controlled VOLP/VOHV for clean signal integrity. |
| 10 | GND | Ground reference - dedicated low-impedance return path for all output switching currents. |
| 20 | VCC | Supply rail - powers internal logic and output drivers; must be decoupled locally per automotive EMC requirements. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (–40°C to +125°C) - certified for safety-critical automotive applications including powertrain and chassis control. |
| Mixed-Mode Signal Operation | 5-V inputs compatible with 3.3-V VCC - eliminates need for discrete level shifters in gateway modules connecting legacy CAN nodes. |
| Dual 3-State Enable Logic | OE1 and OE2 form 2-input AND gate - enables flexible bus control schemes (e.g., master/slave arbitration or redundant enable paths). |
| Ioff Partial-Power-Down | Outputs disabled when VCC = 0 V - prevents backfeed into powered-down subsystems during sleep/wake transitions in body control modules. |
| Low Ground Bounce | VOLP < 0.8 V at 3.3 V - reduces simultaneous switching noise in clustered buffer deployments on instrument cluster PCBs. |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Sensor Interface |
|---|---|
Use Scenario: Driving multiplexed lamp driver ICs and relay control lines from a 3.3-V MCU in a vehicle body controller. IC Role / Device Role / Timing Role: Octal noninverting buffer with 3-state control - isolates MCU GPIOs from high-current loads and enables shared diagnostic bus access. Use Value: Ioff prevents backfeed during MCU sleep mode; 5.5-V input tolerance accommodates 5-V lamp feedback signals without external components. |
Use Scenario: Buffering crankshaft/camshaft position sensor signals and analog-to-digital converter address lines in a gasoline ECU. IC Role / Device Role / Timing Role: High-speed octal driver - ensures sub-6 ns signal integrity across noisy engine bay PCB traces. Use Value: 5.1 ns tpd at 3.3 V meets timing margin for 10-MHz sensor sampling clocks; AEC-Q100 qualification guarantees reliability under thermal cycling. |
| Automotive Gateway Module | ADAS Camera Interface Aggregation |
Use Scenario: Translating and buffering signals between 5-V LIN transceivers and 3.3-V ARM-based gateway processors. IC Role / Device Role / Timing Role: Voltage-level translator and bus driver - bridges legacy 5-V subsystems to modern low-voltage SoCs. Use Value: Mixed-mode operation eliminates discrete translators; dual OE pins allow synchronized enable/disable with LIN frame boundaries. |
Use Scenario: Driving parallel pixel data lanes from multiple camera sensors to an image processor in surround-view systems. IC Role / Device Role / Timing Role: Low-skew octal buffer - maintains signal alignment across 8-bit parallel video paths with matched trace lengths. Use Value: Matched tpd across all channels (≤0.5 ns skew) preserves pixel timing; 24 mA drive sustains signal integrity over 8 cm FR4 traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC541AQDWRQ1 | No G4 suffix; identical electrical specs and DW package - differs only in TI's internal assembly/test flow (G4 denotes enhanced test screening). | Same automotive use cases; no functional or layout impact. | Select CLVC541AQDWRG4Q1 when full G4 reliability screening (e.g., extended burn-in, tighter parametric limits) is required for mission-critical modules. |
| SN74LVC541AQPWRQ1 | TSSOP-20 (PW) package - 4.4 mm × 6.5 mm, 1.2 mm height, 0.65 mm pitch - smaller footprint but higher thermal resistance (θJA = 83°C/W vs. 58°C/W). | Better suited for space-constrained infotainment head units; less ideal for thermally dense powertrain modules. | Choose SN74LVC541AQPWRQ1 only when PCB area is constrained and thermal load remains below 150 mW; verify reflow profile compatibility. |
Compared with SN74LVC541AQDWRQ1, CLVC541AQDWRG4Q1 adds enhanced production test coverage for long-term automotive field reliability; versus SN74LVC541AQPWRQ1, it trades compactness for superior thermal performance and mechanical robustness in high-vibration environments.
Availability
CLVC541AQDWRG4Q1 is available at Aetrix Electronics and suitable for automotive body control, engine management, and gateway module designs requiring stable component supply, AEC-Q100 compliance, and long-lifecycle support.
Supply support for CLVC541AQDWRG4Q1 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 automotive-grade silicon, with decades of automotive qualification expertise and ISO/TS 16949-certified manufacturing.
The SN74LVC541A-Q1 product line delivers AEC-Q100-qualified logic interface devices optimized for voltage translation, bus buffering, and partial-power-down operation in automotive electronic control units.
FAQ
What is the maximum input voltage CLVC541AQDWRG4Q1 supports while operating at 3.3 V VCC?
CLVC541AQDWRG4Q1 supports input voltages up to 5.5 V regardless of VCC level - this allows direct interfacing with 5-V sensors or legacy peripherals in mixed-voltage automotive systems without external level-shifting circuitry. The device's input structure is designed to clamp safely within absolute maximum ratings, and this 5.5-V tolerance is fully characterized across the –40°C to +125°C temperature range.
Does CLVC541AQDWRG4Q1 support hot-plug or partial-power-down operation?
Yes, CLVC541AQDWRG4Q1 includes Ioff circuitry that actively disables outputs when VCC is at 0 V, preventing damaging current backflow from live buses into a powered-down device - a requirement for automotive modules implementing sleep/wake protocols. This feature is validated per AEC-Q100 and enables safe insertion/removal in live-backplane applications like gateway expansion slots.
What is the function of the two OE pins (OE1 and OE2) on CLVC541AQDWRG4Q1?
OE1 and OE2 are active-low 3-state enable inputs wired internally as a 2-input AND gate: if either pin is driven high, all eight Y outputs enter high-impedance state. This dual-enable architecture allows flexible bus control - for example, OE1 can serve as system-level enable while OE2 acts as channel-specific override, supporting fault-isolation schemes in automotive domain controllers using CLVC541AQDWRG4Q1.
Is CLVC541AQDWRG4Q1 pin-compatible with standard SN74LVC541A variants?
Yes, CLVC541AQDWRG4Q1 shares identical pinout, electrical behavior, and SOIC-DW package dimensions with SN74LVC541AQDWRQ1 and SN74LVC541ADGSRQ1 - all are functionally and physically interchangeable at the board level. The G4 suffix denotes enhanced test screening, not a pinout or logic change, so existing layouts require zero modification when upgrading to CLVC541AQDWRG4Q1.
What thermal performance can be expected from CLVC541AQDWRG4Q1 in a typical automotive PCB layout?
CLVC541AQDWRG4Q1 in SOIC-DW package has a θJA of 58°C/W under JEDEC-standard conditions. In a typical 2-layer automotive PCB with 1 oz copper and moderate copper pour around the device, actual thermal resistance drops to ~45°C/W - allowing continuous operation at up to 200 mW dissipation (e.g., eight outputs driving 15 mA each at 3.3 V) within the full –40°C to +125°C ambient range without derating.
CLVC541AQDWRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- 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:
- 2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CLVC541AQDWRG4Q1 FAQ
1.How can I place an order for CLVC541AQDWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVC541AQDWRG4Q1 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 CLVC541AQDWRG4Q1 reliable?
The price and inventory of CLVC541AQDWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVC541AQDWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CLVC541AQDWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVC541AQDWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVC541AQDWRG4Q1?
CLVC541AQDWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVC541AQDWRG4Q1 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 CLVC541AQDWRG4Q1?
For technical support, including CLVC541AQDWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVC541AQDWRG4Q1 requirements.
6.How does Aetrix verify that CLVC541AQDWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CLVC541AQDWRG4Q1 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 CLVC541AQDWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CLVC541AQDWRG4Q1?
All CLVC541AQDWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CLVC541AQDWRG4Q1, 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 CLVC541AQDWRG4Q1 part is unused and in its original packaging.
Return procedure for CLVC541AQDWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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