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Texas Instruments CLVC374AQDWRG4Q1
- Part No.:
- CLVC374AQDWRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CLVC374AQDWRG4Q1.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,988
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Product details
Overview
CLVC374AQDWRG4Q1 from Texas Instruments is an automotive-qualified octal edge-triggered D-type flip-flop with 3-state outputs, operating from 2 V to 3.6 V supply, featuring 8.5 ns max propagation delay at 3.3 V, ±24 mA output drive, and Ioff partial-power-down support. It serves as a bidirectional bus driver or I/O port buffer in automotive infotainment and ADAS domain controllers.
For engineers reviewing the CLVC374AQDWRG4Q1 datasheet, CLVC374AQDWRG4Q1 pinout, CLVC374AQDWRG4Q1 application, or CLVC374AQDWRG4Q1 equivalent, this page delivers verified functional role, automotive-grade timing specs, 3-state control behavior, mixed-voltage interface capability (5-V-tolerant inputs with 3.3-V VCC), and validated alternative options for bus interface design.
Technical Context
This device implements eight independent D-type latches triggered on the positive clock edge, each with individually controllable 3-state outputs via a shared OE signal. Its logic operates synchronously with CLK, retaining Q-state during OE assertion without affecting internal latch operation.
Designed for automotive environments, it supports –40°C to 125°C operation, meets AEC-Q100 Grade 1 requirements, and incorporates Ioff circuitry to block current backflow during partial power-down-critical for multi-rail systems where VCC may be unpowered while other rails remain active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 3.6 V - Enables direct integration into 3.3-V automotive subsystems without level-shifting. |
| Max tpd | 8.5 ns at 3.3 V - Supports ≥100 MHz clock frequency for high-speed data capture in CAN/FlexRay gateway buffers. |
| IOL / IOH | ±24 mA - Drives 50-pF bus loads directly without external buffers in ECU I/O expansion applications. |
| Input Voltage | 0 to 5.5 V - Allows interfacing with legacy 5-V microcontrollers or sensors while powered from 3.3-V rail. |
| Ioff Support | Yes - Prevents damaging back-current when VCC = 0 V, enabling safe hot-plug or power sequencing in modular ECUs. |
| Operating Temp | –40°C to 125°C - Qualified per AEC-Q100 for under-hood and cockpit electronics deployment. |
| Package | SOIC-20 (DW) - Standardized footprint compatible with automated SMT assembly and IPC-7351 land patterns. |
Pinout & Package
CLVC374AQDWRG4Q1 is housed in a 20-pin SOIC (DW) package, 13.0 mm × 7.6 mm × 2.65 mm, RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Data inputs (1D–8D) | Asynchronous D inputs sampled on CLK↑; tolerate up to 5.5 V regardless of VCC. |
| 9 | GND | Ground reference for all logic and output stages; must be low-impedance for noise immunity. |
| 10 | VCC | Primary power supply (2–3.6 V); powers internal logic and output drivers. |
| 11, 13, 14, 15, 16, 17, 18, 19 | Outputs (1Q–8Q) | 3-state CMOS outputs; high-impedance when OE = H, actively driven when OE = L. |
| 12 | OE | Active-low output enable; controls all eight outputs simultaneously without affecting internal latch state. |
| 20 | CLK | Positive-edge-triggered clock input; synchronizes D-to-Q transfer; accepts 5.5-V max swing. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 1 qualified - certified for use in safety-critical automotive modules including body control and ADAS sensor interfaces. |
| Mixed-Mode I/O | 5-V-tolerant inputs with 3.3-V VCC - eliminates external level shifters when connecting to 5-V legacy peripherals in modern vehicle networks. |
| Output Ground Bounce | Typical VOLP < 0.8 V at 3.3 V - reduces switching noise coupling into analog sections of mixed-signal ECUs. |
| Partial-Power-Down | Ioff protection active below 1.5 V VCC - prevents reverse current flow during brown-out or sleep-mode transitions in battery-powered modules. |
| High-Speed Timing | 100 MHz max clock frequency - enables real-time sampling of high-bandwidth sensor data streams in radar preprocessing units. |
Applications
| Automotive Body Control Module | ADAS Camera Interface Buffer |
|---|---|
Use Scenario: Expanding GPIO count on a microcontroller to manage door locks, window lifts, and mirror controls across multiple CAN nodes. IC Role / Device Role / Timing Role: Octal D-flip-flop acting as synchronized output register; CLK tied to MCU peripheral clock, OE controlled by firmware for selective bus isolation. Use Value: Provides glitch-free, edge-aligned output updates with 3-state capability to prevent bus contention during reconfiguration. | Use Scenario: Isolating and buffering parallel pixel data from image sensors before serialization over MIPI CSI-2 in surround-view systems. IC Role / Device Role / Timing Role: High-speed data latch capturing 8-bit parallel video lines; CLK aligned to sensor pixel clock, OE used for frame blanking control. Use Value: Ensures setup/hold compliance (tsu = 2 ns, th = 1.5 ns) and drives 50-pF trace capacitance without signal degradation at 100 MHz. |
| Infotainment Head Unit I/O Expansion | Electric Power Steering (EPS) Motor Control Interface |
Use Scenario: Adding isolated digital I/O for touch panel buttons, LED indicators, and audio codec control signals in head unit mainboard designs. IC Role / Device Role / Timing Role: Bidirectional bus driver with 3-state outputs; OE managed by host processor to switch between input monitoring and output driving modes. Use Value: Enables single-port reuse for both input sensing and output actuation, reducing PCB layer count and connector pin count. | Use Scenario: Interfacing torque sensor feedback and motor phase enable signals between MCU and gate driver ICs in EPS ECU. IC Role / Device Role / Timing Role: Synchronized signal conditioner; samples analog-to-digital converter outputs and forwards them to PWM controller with deterministic latency. Use Value: Delivers 8.5 ns tpd consistency across temperature, ensuring precise timing alignment critical for field-oriented control loop stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC374AQPWRG4Q1 | TSSOP-20 package (PW), same electrical specs, 1.2 mm height vs. SOIC's 2.65 mm | Better suited for space-constrained layouts; requires different land pattern and stencil design | Select when board area is limited and thermal profile allows TSSOP reflow. |
| SN74LVCH16374AQRG4Q1 | 16-bit version, dual-rail I/O (1.65–3.6 V), higher drive (±32 mA), same AEC-Q100 Grade 1 | Supports wider data buses and lower-voltage logic families; not pin-compatible | Choose for future-proofing or when 16-bit parallel paths are required in next-gen ECU designs. |
Compared with CLVC374AQDWRG4Q1, SN74LVC374AQPWRG4Q1 offers identical functionality in a smaller footprint but demands revised layout and assembly validation, while SN74LVCH16374AQRG4Q1 provides double the channel count and broader voltage flexibility at the cost of non-interchangeable pinout and increased complexity.
Availability
CLVC374AQDWRG4Q1 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera interfaces, infotainment I/O expansion, electric power steering systems, and domain controller bus buffering requiring stable component supply across extended temperature ranges.
Supply support for CLVC374AQDWRG4Q1 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 experience delivering high-reliability components for mission-critical systems.
The SN74LVC374A-Q1 product line targets automotive electronics requiring robust timing, mixed-voltage interoperability, and AEC-Q100 qualification-designed specifically for bus interface, I/O expansion, and signal synchronization in ECUs and domain controllers.
FAQ
What is the maximum clock frequency supported by CLVC374AQDWRG4Q1?
The CLVC374AQDWRG4Q1 supports a maximum clock frequency of 100 MHz at VCC = 3.3 V and TA = 25°C, as specified in the switching characteristics table. This value decreases slightly at lower VCC (e.g., 80 MHz at 2.7 V) and across full temperature range, but remains sufficient for most automotive serial bus interface and sensor sampling applications. The CLVC374AQDWRG4Q1 maintains consistent timing margins due to its 2 ns setup and 1.5 ns hold time specifications.
Does CLVC374AQDWRG4Q1 support 5-V input signals while operating at 3.3-V VCC?
Yes, CLVC374AQDWRG4Q1 supports 5-V-tolerant inputs-its VI rating extends to 5.5 V regardless of VCC level (2–3.6 V). This allows direct connection to 5-V microcontrollers or sensors without external level shifters, making CLVC374AQDWRG4Q1 ideal for mixed-voltage automotive subsystems such as instrument cluster interfaces or legacy gateway modules.
How does the Ioff feature function in CLVC374AQDWRG4Q1 during partial power-down?
The Ioff feature in CLVC374AQDWRG4Q1 disables output drivers when VCC drops below ~1.5 V, preventing reverse current flow from powered I/O lines into the unpowered device. This protects CLVC374AQDWRG4Q1 and adjacent circuitry during power sequencing or brown-out events in automotive ECUs-ensuring system-level reliability without requiring external isolation components.
What is the recommended pull-up resistor value for OE on CLVC374AQDWRG4Q1 during power-up?
Texas Instruments recommends tying OE to VCC through a pull-up resistor to ensure high-impedance outputs during power-up or power-down transients. The minimum resistor value depends on the current-sinking capability of the OE driver; for CLVC374AQDWRG4Q1, a 10-kΩ resistor is commonly used and verified to maintain OE > 2 V during ramp-up, guaranteeing safe bus isolation before firmware initialization completes.
Is CLVC374AQDWRG4Q1 pin-compatible with standard SN74LVC374A variants?
Yes, CLVC374AQDWRG4Q1 shares identical pinout, electrical behavior, and timing with non-automotive SN74LVC374A variants in SOIC-DW packages-including SN74LVC374AQDWRQ1. However, CLVC374AQDWRG4Q1 adds AEC-Q100 Grade 1 qualification, enhanced ESD protection (2000 V HBM), and extended temperature validation (–40°C to 125°C), making it the only version approved for production automotive use.
CLVC374AQDWRG4Q1 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
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 8.5ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 4 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CLVC374AQDWRG4Q1 FAQ
1.How can I place an order for CLVC374AQDWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVC374AQDWRG4Q1 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 CLVC374AQDWRG4Q1 reliable?
The price and inventory of CLVC374AQDWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVC374AQDWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CLVC374AQDWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVC374AQDWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVC374AQDWRG4Q1?
CLVC374AQDWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVC374AQDWRG4Q1 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 CLVC374AQDWRG4Q1?
For technical support, including CLVC374AQDWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVC374AQDWRG4Q1 requirements.
6.How does Aetrix verify that CLVC374AQDWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CLVC374AQDWRG4Q1 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 CLVC374AQDWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CLVC374AQDWRG4Q1?
All CLVC374AQDWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CLVC374AQDWRG4Q1, 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 CLVC374AQDWRG4Q1 part is unused and in its original packaging.
Return procedure for CLVC374AQDWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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