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Nexperia USA Inc. 74LVC574ABQ-Q100X
- Part No.:
- 74LVC574ABQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74LVC574ABQ-Q100X.pdf
- Description:
- 74LVC574ABQ-Q100/SOT764/DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,839
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Product details
Overview
74LVC574ABQ-Q100 from Nexperia is an automotive-grade octal positive-edge-triggered D-type flip-flop with 3-state outputs, 5.5 V tolerant inputs/outputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage interfacing (3.3 V ↔ 5 V), and functions reliably across −40 °C to +125 °C for automotive body control modules and ADAS domain controllers.
For engineers reviewing the 74LVC574ABQ-Q100 datasheet, 74LVC574ABQ-Q100 pinout, 74LVC574ABQ-Q100 application, or 74LVC574ABQ-Q100 equivalent, this device is selected for high-reliability data latching in CAN/LIN subsystems, infotainment bus buffering, and ECU input signal synchronization where voltage translation and AEC-Q100 Grade 1 compliance are mandatory.
Technical Context
This device implements eight independent edge-triggered D-flip-flops sharing a common clock (CP) and active-low output enable (OE). Each flip-flop captures Dn on the LOW-to-HIGH CP transition, with set-up time as low as 2.0 ns at VCC = 3.3 V and hold time of +1.5 ns.
The 3-state outputs are fully decoupled from register state-OE assertion forces Qn into high-impedance without altering stored data. Schmitt-trigger inputs tolerate slow-rising signals, and IOFF circuitry blocks backflow current when VCC = 0 V, enabling safe hot-insertion in powered-backplane systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Input Voltage Tolerance | Up to 5.5 V - Allows connection to 5 V microcontrollers or sensors while powered from 3.3 V rails. |
| Propagation Delay (tpd) | 1.5 ns (min) to 9.0 ns (max) at VCC = 3.3 V - Supports >120 MHz operation in synchronous data capture paths. |
| Set-up / Hold Time | 2.0 ns / +1.5 ns at VCC = 3.3 V - Tight timing margins simplify timing closure in high-speed digital interfaces. |
| IOFF Leakage | < ±20 μA at VCC = 0 V, VI/VO = 5.5 V - Prevents destructive back-current during partial system power-down. |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - Qualified for under-hood and powertrain applications per automotive reliability standards. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Robust handling in automated assembly and field service environments. |
Pinout & Package
DHVQFN20 package (SOT764-1): 2.5 × 4.5 × 0.85 mm body, 20-terminal thermal-enhanced quad flat no-lead with exposed thermal pad (non-soldered by default).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground node; electrically isolated thermal pad requires floating or GND connection if soldered. |
| 2–9 | D0–D7 | Asynchronous data inputs; Schmitt-triggered for noise immunity on slow-rising control signals. |
| 10 | CP | Positive-edge clock input; triggers all eight flip-flops simultaneously on LOW-to-HIGH transition. |
| 11 | OE | Active-low 3-state enable; disables outputs without affecting internal register state. |
| 12–19 | Q0–Q7 | Registered outputs; tri-stated when OE = HIGH, driven actively when OE = LOW. |
| 20 | VCC | Core supply rail; powers logic and IO buffers; IOFF circuitry remains functional even when VCC = 0 V. |
Key Features
| Feature | Design Value |
|---|---|
| 5.5 V tolerant I/O | Enables direct connection to legacy 5 V peripherals without external translators in mixed-voltage ECUs. |
| IOFF partial power-down | Blocks reverse current flow when VCC is off, protecting downstream circuits during battery disconnect or sleep mode. |
| Schmitt-trigger inputs | Accepts slow or noisy signals (e.g., from mechanical switches or long PCB traces) without external hysteresis components. |
| Flow-through pinout | Minimizes trace crossovers and routing congestion in dense automotive PCB layouts (Dn/Qn aligned on opposite sides). |
| AEC-Q100 Grade 1 | Validated for continuous operation at +125 °C ambient, meeting thermal requirements for engine bay and transmission control units. |
Applications
| Body Control Module (BCM) | ADAS Camera Interface |
|---|---|
Use Scenario: Latching door lock status, window position, and mirror adjustment commands from LIN bus nodes. IC Role / Device Role / Timing Role: Synchronous data register capturing command bytes on rising edge of system clock synchronized to LIN frame timing. Use Value: 5.5 V tolerance allows direct interface with 5 V LIN transceivers; IOFF prevents backfeed during BCM sleep mode. |
Use Scenario: Buffering parallel pixel data from image sensor to SoC MIPI bridge during startup calibration. IC Role / Device Role / Timing Role: Edge-triggered latch holding stable sensor output while SoC initializes its video pipeline. Use Value: 1.5 ns min tpd ensures sub-cycle alignment with 120 MHz pixel clocks; Schmitt inputs suppress EMI-induced glitches on flex cable lines. |
| Infotainment Head Unit | Powertrain Control Unit (PCU) |
Use Scenario: Isolating display backlight PWM signals from MCU GPIOs during firmware updates. IC Role / Device Role / Timing Role: 3-state buffer enabling dynamic reconfiguration of PWM routing without hardware redesign. Use Value: Independent OE control allows real-time switching between MCU and dedicated backlight controller; AEC-Q100 ensures reliability over 15-year vehicle lifecycle. |
Use Scenario: Capturing throttle position sensor (TPS) analog-to-digital converter outputs before CAN transmission. IC Role / Device Role / Timing Role: Synchronized sampling register aligning ADC results to engine control loop timing windows. Use Value: −40 °C to +125 °C operation matches TPS environmental envelope; 2.0 ns setup time accommodates fast-changing engine load conditions. |
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 |
|---|---|---|---|
| SN74LVC574APWRE4 | Same logic function but TSSOP20 (SOT360-1); higher thermal resistance (10.0 mW/K derating above 100 °C vs. 12.9 mW/K for DHVQFN). | Preferred for manual rework or prototyping; less suitable for high-power-density under-hood modules. | Select when board-level repairability outweighs thermal performance in non-critical zones. |
| 74LVC574APW-Q100 | Identical electrical specs and AEC-Q100 qualification; differs only in TSSOP20 packaging and temperature test profile (−40 °C to +125 °C same). | Used in cost-sensitive instrument cluster designs where TSSOP footprint reduces PCB layer count. | Choose for legacy TSSOP-compatible layouts or where thermal dissipation is managed via heatsinking. |
Compared with SN74LVC574APWRE4 and 74LVC574APW-Q100, the 74LVC574ABQ-Q100 offers superior thermal performance in space-constrained automotive modules due to its DHVQFN20 package's lower junction-to-ambient resistance and smaller footprint-critical for ADAS and powertrain applications where ambient temperatures exceed 100 °C.
Availability
74LVC574ABQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera interfaces, infotainment head units, and powertrain control units requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for 74LVC574ABQ-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 specializing in high-performance logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade reliability and manufacturing scalability.
The 74LVC574A-Q100 belongs to Nexperia's automotive logic portfolio, engineered specifically for robust data latching and voltage translation in harsh-temperature ECU environments where safety, longevity, and interoperability are non-negotiable.
FAQ
Can 74LVC574ABQ-Q100 operate with a 1.2 V supply while interfacing with 5 V inputs?
Yes. The device is fully specified down to 1.2 V VCC and accepts input voltages up to 5.5 V regardless of supply level. This enables direct connection to 5 V sensors or microcontrollers without level-shifting circuitry, reducing BOM count and layout complexity in mixed-voltage automotive subsystems.
What happens to the outputs when VCC = 0 V and OE is asserted?
When VCC = 0 V, the IOFF circuitry activates automatically, forcing all outputs into high-impedance regardless of OE state. This prevents back-current from 5 V signal lines into the unpowered IC, satisfying ISO 16750-2 requirements for battery disconnect scenarios in automotive systems.
Is the DHVQFN20 package lead-free and RoHS-compliant?
Yes. The SOT764-1 (DHVQFN20) package uses lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Nexperia confirms full material declaration and substance compliance documentation is available upon request.
How does the Schmitt-trigger input improve noise immunity in automotive environments?
Schmitt-trigger inputs provide hysteresis (typically 0.3–0.5 V), rejecting transient noise below the threshold window. In automotive applications-such as door switch sensing or HVAC actuator feedback-this eliminates false triggering caused by EMI, contact bounce, or long harness-induced ringing without requiring external RC filters.
74LVC574ABQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-VFQFN Exposed Pad
- 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:
- 200 MHz
- Max Propagation Delay @ V, Max CL:
- 9ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DHVQFN (4.5x2.5)
74LVC574ABQ-Q100X FAQ
1.How can I place an order for 74LVC574ABQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC574ABQ-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 74LVC574ABQ-Q100X reliable?
The price and inventory of 74LVC574ABQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC574ABQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74LVC574ABQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC574ABQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC574ABQ-Q100X?
74LVC574ABQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC574ABQ-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 74LVC574ABQ-Q100X?
For technical support, including 74LVC574ABQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC574ABQ-Q100X requirements.
6.How does Aetrix verify that 74LVC574ABQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74LVC574ABQ-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 74LVC574ABQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74LVC574ABQ-Q100X?
All 74LVC574ABQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC574ABQ-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 74LVC574ABQ-Q100X part is unused and in its original packaging.
Return procedure for 74LVC574ABQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC574ABQ-Q100X Tags
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