My Inquiry
My Account
Texas Instruments CLVC540AQPWRG4Q1
- Part No.:
- CLVC540AQPWRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CLVC540AQPWRG4Q1.pdf
- Description:
- IC BUFFER INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,925
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CLVC540AQPWRG4Q1 from Texas Instruments is an automotive-qualified octal buffer/driver with 3-state outputs, designed for 2.0 V to 3.6 V VCC operation. It features dual active-low output-enable inputs (OE1, OE2), supports mixed-mode 5-V input/3.3-V VCC interfacing, and delivers 5.3 ns max propagation delay at 3.3 V - ideal for bus driving and memory address buffering in automotive control modules.
For engineers reviewing the CLVC540AQPWRG4Q1 datasheet, CLVC540AQPWRG4Q1 pinout, CLVC540AQPWRG4Q1 application, or CLVC540AQPWRG4Q1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (-40°C to +125°C), Ioff partial-power-down support, 5.5-V tolerant inputs, and TSSOP-20 package compatibility with high-density automotive PCB layouts.
Technical Context
The CLVC540AQPWRG4Q1 implements eight noninverting buffer channels with independent 3-state control via a dual-input AND gate (OE1 and OE2, both active-low). Its Ioff circuitry disables outputs during power-down to prevent backflow current, enabling safe hot-insertion in modular automotive subsystems.
It supports true mixed-voltage operation: inputs tolerate up to 5.5 V regardless of VCC (2.0–3.6 V), allowing direct interface between legacy 5-V logic and modern 3.3-V microcontrollers. Output ground bounce (VOLP) remains below 0.8 V and VOHV undershoot exceeds 2 V at 3.3 V, ensuring signal integrity in noisy vehicle environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 3.6 V - enables direct use with 2.5-V and 3.3-V automotive MCUs without level-shifting. |
| Input Voltage Tolerance | Up to 5.5 V - allows connection to 5-V sensors or legacy peripherals without external clamping. |
| Max Propagation Delay | 5.3 ns at VCC = 3.3 V - supports high-speed data transfer on CAN/LIN peripheral buses or memory address lines. |
| Ioff Support | Yes - prevents damaging current flow when VCC = 0 V, critical for modular ECU power sequencing. |
| Operating Temperature | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and transmission control applications. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50-Ω transmission lines or fan-out to ≥10 LVC loads. |
| ESD Protection | >2000 V HBM, >200 V MM - exceeds automotive system-level ESD immunity requirements per ISO 10605. |
Pinout & Package
TSSOP-20 package (PW), 6.5 mm × 4.4 mm × 1.2 mm height, lead pitch 0.65 mm, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low 3-state enable inputs; both must be low for output drivers to be active - provides dual-control redundancy for safety-critical enable paths. |
| 2–9 | A1–A8 | Noninverting data inputs - placed on left side to simplify routing from MCU GPIO or address bus. |
| 11–18 | Y1–Y8 | Noninverting 3-state outputs - positioned on right side to enable straight-through PCB trace layout across bus lines. |
| 10 | GND | Ground reference - dedicated pin adjacent to VCC for low-inductance decoupling near power entry. |
| 20 | VCC | Supply voltage input - placed opposite GND to minimize supply loop area and reduce switching noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage translation | 5-V-tolerant inputs with 3.3-V VCC operation - eliminates need for discrete level shifters in hybrid-voltage ECUs. |
| Ioff partial-power-down | Outputs automatically disable when VCC = 0 V - prevents backfeed into powered-down domains during sleep/wake transitions. |
| Low ground bounce | VOLP < 0.8 V at 3.3 V - maintains logic low integrity during simultaneous output switching in motor driver interfaces. |
| Automotive qualification | AEC-Q100 Grade 1 certified - validated for continuous operation in engine control, body electronics, and ADAS sensor hubs. |
| High noise immunity | VIL = 0.8 V, VIH = 2.0 V at VCC = 2.7–3.6 V - ensures robust operation amid automotive electrical transients and RF interference. |
Applications
| Engine Control Unit (ECU) Address Buffering | Body Control Module (BCM) I/O Expansion |
|---|---|
|
Use Scenario: Driving 16-bit address bus between 32-bit MCU and external flash memory in gasoline/diesel engine controllers. IC Role / Device Role / Timing Role: Noninverting octal buffer with 3-state control synchronizes with memory read/write strobes to isolate bus during idle cycles. Use Value: 5.3 ns tpd ensures setup/hold timing margins are met at 25 MHz bus clock; Ioff prevents backfeed during MCU reset sequences. |
Use Scenario: Expanding GPIO count for door lock actuators, window lift motors, and interior lighting in centralized BCM designs. IC Role / Device Role / Timing Role: Bidirectional bus driver (with external direction control) interfaces MCU to 8-channel relay driver ICs. Use Value: 5.5-V input tolerance accepts signals from 5-V analog comparators; ±24 mA drive sustains 100-mA relay coil loads via external FETs. |
| ADAS Camera Sensor Interface | Electric Power Steering (EPS) Motor Control |
|
Use Scenario: Level-shifting and buffering parallel pixel data lines from 5-V image sensor to 3.3-V SoC in surround-view systems. IC Role / Device Role / Timing Role: Input-tolerant buffer isolates sensor domain from SoC domain while preserving signal edge rates. Use Value: VOLP < 0.8 V prevents false triggering of SoC input receivers during high-frequency pixel clock edges. |
Use Scenario: Isolating MCU PWM outputs from gate-driver inputs in dual-motor EPS systems with independent torque control loops. IC Role / Device Role / Timing Role: 3-state-enabled buffer gates PWM signals to prevent shoot-through during controller fault recovery. Use Value: Dual OE inputs allow hardware-based fail-safe disable via separate safety MCU pins - meeting ASIL-B diagnostic coverage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC540AQPWRQ1 | No G4 suffix; same PW package, identical electrical specs, but lacks TI's enhanced green marking (G4 = halogen-free, matte tin finish). | Identical functional behavior in all automotive applications; differs only in material composition compliance documentation. | Select CLVC540AQPWRG4Q1 when halogen-free manufacturing and IPC-1752-compliant materials reporting are required. |
| SN74LVC540ADGSRQ1 | VSSOP-20 (DGS) package: 4.5 mm × 3.0 mm, 0.5-mm pitch; higher thermal resistance (θJA = 135°C/W vs. 83°C/W for PW). | Better suited for ultra-compact modules where board area is constrained, but requires tighter layout control for thermal management. | Choose SN74LVC540ADGSRQ1 only when footprint reduction outweighs thermal derating needs in sealed enclosures. |
Compared with SN74LVC540AQPWRQ1, CLVC540AQPWRG4Q1 adds halogen-free compliance and matte tin finish for stricter environmental programs; versus SN74LVC540ADGSRQ1, it offers lower thermal impedance and broader reflow process margin in standard automotive SMT lines.
Availability
CLVC540AQPWRG4Q1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera interfaces requiring stable component supply across extended automotive product lifecycles.
Supply support for CLVC540AQPWRG4Q1 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 over 50 years of automotive qualification expertise.
The SN74LVC-Q1 series delivers AEC-Q100-qualified logic devices optimized for reliability, mixed-voltage interoperability, and thermal robustness in automotive electronic control units.
FAQ
What is the operating temperature range for CLVC540AQPWRG4Q1?
The CLVC540AQPWRG4Q1 is rated for –40°C to +125°C ambient operation and is AEC-Q100 Grade 1 qualified. This range covers under-hood engine control, transmission control, and chassis module environments where sustained high-temperature exposure occurs. All electrical parameters in the datasheet are guaranteed across this full range.
Does CLVC540AQPWRG4Q1 support partial power-down operation?
Yes, CLVC540AQPWRG4Q1 includes Ioff circuitry that disables all outputs when VCC = 0 V, preventing current backflow from live inputs into a powered-down system domain. This feature is essential for modular automotive ECUs undergoing selective power cycling and is verified per JESD78 latch-up testing.
Can CLVC540AQPWRG4Q1 interface between 5-V and 3.3-V logic domains?
Yes, CLVC540AQPWRG4Q1 accepts input voltages up to 5.5 V while operating from a 2.0–3.6 V VCC supply. This allows direct connection of 5-V sensors or legacy peripherals to 3.3-V microcontrollers without external level shifters - confirmed by VI absolute maximum rating and VIH/VIL specifications across VCC.
What is the maximum propagation delay of CLVC540AQPWRG4Q1 at 3.3 V?
The maximum propagation delay (tpd) of CLVC540AQPWRG4Q1 is 5.3 ns at VCC = 3.3 V, TA = 25°C, with CL = 50 pF. This value is measured from input transition to valid output transition and is guaranteed across the full operating temperature range per the switching characteristics table.
Is CLVC540AQPWRG4Q1 pin-compatible with other packages in the SN74LVC540A-Q1 family?
CLVC540AQPWRG4Q1 uses the TSSOP-20 (PW) package with standard 0.65-mm pitch and JEDEC MO-153 outline. It shares identical pin numbering and function mapping with SN74LVC540AQPWRQ1 and SN74LVC540ADGSRQ1, though VSSOP-20 (DGS) has different physical dimensions and thermal characteristics requiring layout revision.
CLVC540AQPWRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, 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-TSSOP
CLVC540AQPWRG4Q1 FAQ
1.How can I place an order for CLVC540AQPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVC540AQPWRG4Q1 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 CLVC540AQPWRG4Q1 reliable?
The price and inventory of CLVC540AQPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVC540AQPWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CLVC540AQPWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVC540AQPWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVC540AQPWRG4Q1?
CLVC540AQPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVC540AQPWRG4Q1 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 CLVC540AQPWRG4Q1?
For technical support, including CLVC540AQPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVC540AQPWRG4Q1 requirements.
6.How does Aetrix verify that CLVC540AQPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CLVC540AQPWRG4Q1 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 CLVC540AQPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CLVC540AQPWRG4Q1?
All CLVC540AQPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CLVC540AQPWRG4Q1, 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 CLVC540AQPWRG4Q1 part is unused and in its original packaging.
Return procedure for CLVC540AQPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CLVC540AQPWRG4Q1 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
