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Texas Instruments CLVC574AQPWRG4Q1
- Part No.:
- CLVC574AQPWRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CLVC574AQPWRG4Q1.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,105
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Product details
Overview
CLVC574AQPWRG4Q1 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, featuring 7 ns max propagation delay at 3.3 V, Ioff partial-power-down support, and 5.5-V-tolerant inputs - used in automotive I/O port buffering and bidirectional bus driving.
For engineers reviewing the CLVC574AQPWRG4Q1 datasheet, CLVC574AQPWRG4Q1 pinout, CLVC574AQPWRG4Q1 application, or CLVC574AQPWRG4Q1 equivalent, this page delivers verified timing parameters, automotive-grade thermal and ESD specs, TSSOP-20 package details, and validated alternative options for mixed-voltage system design.
Technical Context
This device implements eight independent D-type latches triggered on the positive clock edge, with a dedicated buffered output-enable (OE) controlling all eight 3-state outputs simultaneously. Its Ioff circuitry disables outputs during power-down to prevent backflow current, enabling safe hot-insertion in partial-power-down systems.
It supports mixed-mode signal operation: inputs tolerate up to 5.5 V while VCC operates at 2.7–3.6 V, allowing direct interfacing between 5-V legacy logic and 3.3-V domains without level shifters. The 20-pin TSSOP package provides compact layout with 0.65-mm pitch and 1.2-mm max height.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 3.6 V - enables compatibility with 2.5-V and 3.3-V supply rails in automotive ECUs. |
| Max tpd | 7 ns at VCC = 3.3 V - ensures sub-10 ns data-to-output timing for high-speed control register updates. |
| Input Voltage Tolerance | Up to 5.5 V - allows direct connection to 5-V microcontrollers or sensors without external clamping. |
| Ioff Support | Yes - prevents damaging current flow when VCC = 0 V, critical for modular automotive subsystems with staggered power sequencing. |
| Operating Temperature | –40°C to +125°C - qualified per AEC-Q100 for engine bay and ADAS domain controller environments. |
| ESD Rating | >2000 V HBM, >200 V MM - exceeds automotive board-level ESD immunity requirements. |
| Output Drive | ±24 mA at VCC = 3.0 V - sufficient to drive 50-pF loads or stubbed CAN/LIN bus lines directly. |
Pinout & Package
TSSOP-20 package (PW), 6.5 mm × 4.4 mm footprint, 1.2 mm max height, 0.65 mm lead pitch, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control for simultaneous 3-state enable/disable of all eight Q outputs. |
| 2–9 | 1D–8D | Data inputs latched on CLK rising edge; 5.5-V tolerant, CMOS-compatible thresholds. |
| 10 | GND | Ground reference for all internal logic and output drivers; must be low-impedance for noise control. |
| 11 | VCC | Primary power supply (2.0–3.6 V); decoupling capacitor required within 10 mm. |
| 12–19 | 1Q–8Q | 3-state buffered outputs; high-impedance state isolates bus during OE high. |
| 20 | CLK | Clock input with Schmitt-trigger hysteresis; minimum pulse width 3.3 ns at 3.3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 1 qualified - certified for use in safety-critical vehicle subsystems including body control and infotainment gateways. |
| Mixed-Voltage Interface | 5.5-V-tolerant inputs with 3.3-V VCC - eliminates need for discrete level translators in 3.3/5-V hybrid architectures. |
| Partial-Power-Down Protection | Ioff limits reverse current to <10 µA when VCC = 0 V - enables hot-swap capability in modular ECU designs. |
| Low Ground Bounce | Typical VOLP < 0.8 V at VCC = 3.3 V - reduces switching noise coupling into adjacent analog or RF circuits. |
| High-Speed Timing | 150 MHz max clock frequency and 2 ns setup/hold - supports real-time sampling in motor control feedback loops. |
Applications
| Automotive Body Control Module | ADAS Camera Interface Buffer |
|---|---|
Use Scenario: Latching sensor status signals (door open/closed, seatbelt fastened) before transmission over LIN bus. IC Role / Device Role / Timing Role: Octal D-flip-flop acting as synchronized input register with glitch-free sampling on CLK edge. Use Value: Ensures deterministic capture of asynchronous mechanical switch inputs under noisy vehicle electrical conditions. |
Use Scenario: Isolating and buffering parallel pixel data from image sensor to SoC during high-speed burst reads. IC Role / Device Role / Timing Role: 3-state output buffer providing bus contention avoidance and load matching for 8-bit parallel video path. Use Value: Prevents signal integrity degradation across long PCB traces by driving capacitive loads up to 50 pF without external termination. |
| Engine Control Unit I/O Expansion | Infotainment System GPIO Hub |
Use Scenario: Expanding MCU GPIO count to manage solenoid drivers, LED indicators, and diagnostic LEDs in constrained ECU layouts. IC Role / Device Role / Timing Role: Edge-triggered register holding command bits until next engine cycle sync pulse. Use Value: Enables precise timing alignment of actuator commands with crankshaft position events via synchronous clocking. |
Use Scenario: Aggregating user interface signals (button presses, rotary encoder pulses) from multiple dashboard controls. IC Role / Device Role / Timing Role: Input latch synchronizing asynchronous human-interface events to the infotainment SoC clock domain. Use Value: Eliminates metastability risk in multi-clock-domain systems while supporting 5-V switch inputs on 3.3-V logic rails. |
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 |
|---|---|---|---|
| SN74LVC574AQDWRQ1 | SOIC-20 package (DW), same electrical specs, 2.65 mm height vs. TSSOP's 1.2 mm. | Better thermal dissipation in high-ambient environments; requires larger PCB area and higher reflow profile. | Select when board space permits and thermal margin >15°C is needed above 125°C ambient. |
| SN74LVCH16374AQRHRRQ1 | 16-bit, dual-rail I/O (1.65–3.6 V), higher drive (±32 mA), but no 5.5-V input tolerance. | Supports voltage translation between 1.8-V and 3.3-V domains, not 3.3-V/5-V mixed systems. | Choose only if system uses exclusively sub-3.3-V logic and requires double channel density. |
Compared with CLVC574AQPWRG4Q1, SN74LVC574AQDWRQ1 offers identical functionality in a thermally robust SOIC package, while SN74LVCH16374AQRHRRQ1 trades 5-V input compatibility for higher channel count and dual-supply flexibility - making CLVC574AQPWRG4Q1 uniquely suited for legacy 5-V peripheral interfacing in space-constrained automotive modules.
Availability
CLVC574AQPWRG4Q1 is available at Aetrix Electronics and suitable for automotive body control, ADAS sensor interface, and engine management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CLVC574AQPWRG4Q1 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 ICs, with over 50 years of innovation in high-reliability silicon solutions.
The SN74LVC574A-Q1 product line delivers AEC-Q100-qualified logic devices optimized for automotive signal integrity, power sequencing, and mixed-voltage interoperability in harsh-temperature environments.
FAQ
What is the maximum clock frequency supported by CLVC574AQPWRG4Q1?
The CLVC574AQPWRG4Q1 supports a maximum clock frequency of 150 MHz at VCC = 3.3 V, as specified in the switching characteristics table. This rating holds across the full operating temperature range (–40°C to +125°C) and enables use in high-speed automotive data acquisition paths where deterministic sampling is required.
Does CLVC574AQPWRG4Q1 support 5-V input signals while powered from a 3.3-V supply?
Yes, CLVC574AQPWRG4Q1 accepts input voltages up to 5.5 V regardless of VCC level (2.0–3.6 V), enabling direct interfacing with 5-V microcontrollers, sensors, or legacy peripherals without external level-shifting circuitry - a key feature confirmed in the "Mixed-Mode Signal Operation" section of the datasheet.
What is the purpose of the Ioff feature in CLVC574AQPWRG4Q1?
The Ioff feature in CLVC574AQPWRG4Q1 disables output drivers when VCC = 0 V, limiting reverse current to less than 10 µA. This prevents damaging backflow through the device during partial power-down sequences - essential for automotive modules with independent power domains and hot-swap requirements.
Can CLVC574AQPWRG4Q1 outputs drive a 50-pF capacitive load reliably?
Yes, CLVC574AQPWRG4Q1 is characterized to drive 50-pF loads with guaranteed timing: tpd ≤ 7 ns and tdis ≤ 6.4 ns at VCC = 3.3 V. The typical output capacitance (Co) is 5.5 pF, and the device's ±24 mA drive strength ensures clean signal edges even under full capacitive loading typical of automotive PCB interconnects.
Is CLVC574AQPWRG4Q1 pin-compatible with standard SN74LVC574A variants?
Yes, CLVC574AQPWRG4Q1 shares identical pinout and functionality with non-automotive SN74LVC574A parts in TSSOP-20 (PW) packaging, including SN74LVC574APWR. Electrical specifications, timing, and logic behavior are fully aligned - only qualification grade (AEC-Q100) and marking differ.
CLVC574AQPWRG4Q1 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
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 150 MHz
- Max Propagation Delay @ V, Max CL:
- 7ns @ 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-TSSOP
CLVC574AQPWRG4Q1 FAQ
1.How can I place an order for CLVC574AQPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVC574AQPWRG4Q1 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 CLVC574AQPWRG4Q1 reliable?
The price and inventory of CLVC574AQPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVC574AQPWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CLVC574AQPWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVC574AQPWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVC574AQPWRG4Q1?
CLVC574AQPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVC574AQPWRG4Q1 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 CLVC574AQPWRG4Q1?
For technical support, including CLVC574AQPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVC574AQPWRG4Q1 requirements.
6.How does Aetrix verify that CLVC574AQPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CLVC574AQPWRG4Q1 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 CLVC574AQPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CLVC574AQPWRG4Q1?
All CLVC574AQPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CLVC574AQPWRG4Q1, 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 CLVC574AQPWRG4Q1 part is unused and in its original packaging.
Return procedure for CLVC574AQPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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