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Nexperia USA Inc. 74HC174D-Q100J
- Part No.:
- 74HC174D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC174D-Q100J.pdf
- Description:
- IC FF D-TYPE SNGL 6BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:37,500
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Product details
Overview
74HC174D-Q100 from Nexperia is an automotive-qualified hex positive-edge-triggered D-type flip-flop with asynchronous master reset (MR), operating across 2.0 V to 6.0 V supply, delivering 50 ns typical propagation delay at 4.5 V and supporting -40 °C to +125 °C ambient range. It integrates six independent D-inputs (D0–D5), six Q-outputs (Q0–Q5), shared clock (CP), and common MR in a 16-pin SO16 package - used for synchronous data latching and state retention in engine control units and ADAS sensor interface logic.
For engineers reviewing the 74HC174D-Q100 datasheet, 74HC174D-Q100 pinout, 74HC174D-Q100 application, or 74HC174D-Q100 equivalent, key selection considerations include CMOS-level input compatibility, AEC-Q100 Grade 1 qualification, guaranteed setup/hold timing (12 ns su / 3 ns h at 4.5 V), and SO16 thermal performance up to 125 °C ambient.
Technical Context
This device implements six edge-triggered D-type storage elements sharing one clock and one active-low asynchronous reset. Each flip-flop captures the Dn input on the LOW-to-HIGH transition of CP, provided setup and hold times are met - enabling deterministic state capture in synchronous digital systems.
Input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), and exhibits latch-up immunity >100 mA per JESD78 Class II Level B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 2.0 V to 6.0 V - supports wide-rail automotive power domains including 3.3 V and 5 V logic subsystems |
| Propagation delay (tpd) | 20 ns typ @ 4.5 V, CL = 50 pF - enables reliable operation in 25 MHz synchronous control loops |
| Set-up time (tsu) | 12 ns min @ 4.5 V - defines minimum data stability window before clock edge for valid sampling |
| Hold time (th) | 3 ns min @ 4.5 V - specifies minimum data persistence after clock edge to prevent metastability |
| Operating temperature | -40 °C to +125 °C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
| Input logic level | CMOS-compatible - VIH = 3.15 V min, VIL = 1.35 V max @ VCC = 4.5 V - ensures noise margin >1.3 V |
| Output drive strength | ±4.0 mA @ VCC = 4.5 V - sufficient to drive multiple 74HC inputs or 50 pF PCB traces without buffering |
Pinout & Package
74HC174D-Q100 uses the SOT109-1 plastic small outline package (SO16), 16-lead, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing terminations suitable for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (MR) | Asynchronous master reset | Active-LOW signal that forces all Q outputs LOW regardless of clock state - critical for system initialization and fault recovery |
| 2–7, 10, 12, 15 (Q0–Q5) | Flip-flop outputs | Complementary storage states; each reflects corresponding D-input sampled at prior CP rising edge |
| 3–6, 11, 13, 14 (D0–D5) | Data inputs | Independent parallel data lanes synchronized to CP - supports 6-bit register file or status word capture |
| 8 (GND) | Ground reference | Primary return path for all internal logic and I/O currents; must be low-impedance for noise immunity |
| 9 (CP) | Clock input | Edge-sensitive control signal; only LOW-to-HIGH transitions trigger data capture - immune to glitches on falling edge |
| 16 (VCC) | Positive supply | Power rail for all internal CMOS circuitry; decoupling capacitor required within 10 mm for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient - meets reliability requirements for powertrain and chassis modules |
| Clamped inputs with diode protection | Enables direct connection to 12 V or 24 V subsystems using series current-limiting resistors - eliminates need for external level shifters |
| Low dynamic power dissipation | CPD = 17 pF - limits switching power to <100 μW at 1 MHz with 5 V supply, reducing thermal load in dense PCB layouts |
| High noise immunity | Typical noise margin >1.3 V at 4.5 V supply - suppresses false triggering from EMI in electrically noisy vehicle environments |
| JEDEC-compliant interface | Fully compatible with JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards - ensures interoperability with mixed-voltage logic families |
Applications
| Engine Control Unit (ECU) Status Register | ADAS Camera Interface Buffer |
|---|---|
Use Scenario: Capturing and holding real-time sensor status flags (e.g., knock detection, camshaft position, throttle angle) for diagnostic logging and closed-loop actuator control. IC Role / Device Role / Timing Role: Synchronous 6-bit register storing parallel status bits aligned to ECU main clock domain; MR resets all flags on power-on or fault condition. Use Value: Enables deterministic snapshot of multi-sensor state at precise clock edges - eliminating race conditions during firmware readback and improving OBD-II compliance. | Use Scenario: Temporarily buffering pixel metadata (exposure time, gain setting, frame sync error flags) between image sensor and SoC preprocessor in surround-view camera modules. IC Role / Device Role / Timing Role: Edge-triggered latch synchronizing asynchronous sensor-side signals into the SoC's clock domain; CP driven by pixel clock, MR clears stale metadata on frame boundary. Use Value: Prevents metastability-induced corruption of calibration-critical metadata - ensuring accurate auto-exposure and HDR fusion across multiple camera inputs. |
| Body Control Module (BCM) I/O Expander | Electric Power Steering (EPS) Fault Monitor |
Use Scenario: Extending microcontroller GPIO count to manage door lock actuators, mirror controls, and interior lighting drivers in centralized BCM designs. IC Role / Device Role / Timing Role: Parallel-output register receiving serial-shifted configuration data via SPI; CP clocks in each 6-bit chunk, MR initializes outputs to safe (OFF) state at startup. Use Value: Reduces MCU pin count and firmware overhead while guaranteeing fail-safe default output states - meeting ISO 26262 ASIL-B functional safety constraints. | Use Scenario: Monitoring torque sensor discrepancies, motor phase current imbalances, and CAN timeout events in EPS electronic control units. IC Role / Device Role / Timing Role: Dedicated fault latch capturing transient error conditions (e.g., overcurrent pulse, sensor dropout) on rising edge of dedicated fault strobe; MR clears latched faults after ECU diagnostic confirmation. Use Value: Provides auditable, glitch-immune fault history storage - enabling deterministic fault escalation and ASIL-D compliant error handling per ISO 26262. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT174D-Q100 | TTL-compatible inputs (VIH = 2.0 V min); identical timing, packaging, and AEC-Q100 qualification | Preferred where interfacing legacy 5 V TTL logic or microcontrollers with non-CMOS output drivers | Select when driving from older 5 V microcontrollers or industrial PLC outputs lacking CMOS-level swing |
| SN74HC174QPWRQ1 | TI's AEC-Q100 Grade 1 variant; same pinout and function but different AC characteristics (tpd = 23 ns @ 4.5 V) | Used in TI-based automotive platforms requiring TI-qualified supply chain traceability | Choose for TI ecosystem alignment or dual-sourcing requirements in Tier-1 production programs |
Compared with 74HCT174D-Q100, the HC version offers higher noise margin for modern CMOS microcontrollers, while SN74HC174QPWRQ1 provides alternate qualification documentation and minor timing variation - both retain identical SO16 footprint and reset behavior for drop-in layout reuse.
Availability
74HC174D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS camera interfaces, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for 74HC174D-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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions - headquartered in Nijmegen, Netherlands, with manufacturing in Europe and Asia.
This device belongs to Nexperia's automotive-qualified 74HC logic family, designed specifically for robust, low-power, pin-compatible replacements of legacy TTL and CMOS registers in safety-critical vehicle subsystems.
FAQ
Is 74HC174D-Q100 pin-compatible with non-automotive 74HC174 variants?
Yes - it shares identical pinout, electrical behavior, and SO16 package (SOT109-1) with standard 74HC174 devices. However, only the -Q100 suffix denotes AEC-Q100 Grade 1 qualification, extended temperature testing, and automotive-specific reliability screening - making it suitable for production vehicles where standard versions are not approved.
What is the maximum clock frequency supported at 125 °C ambient?
At VCC = 4.5 V and Tamb = +125 °C, the maximum guaranteed clock frequency is 20 MHz (tpd ≤ 41 ns, tW ≥ 20 ns). This is derived from the -40 °C to +125 °C dynamic characteristics table, where fmax = 20 MHz is specified under those conditions - sufficient for most automotive control loop timing budgets.
Can MR be left unconnected if asynchronous reset is not needed?
No - MR is an active-LOW input with no internal pull-up. Leaving it floating risks unintended reset due to noise coupling. It must be tied to VCC via a 10 kΩ resistor or driven actively HIGH in normal operation to ensure reliable flip-flop functionality.
Does this device support hot insertion or live insertion into powered systems?
No - 74HC174D-Q100 lacks hot-swap protection features such as power-up 3-state or Ioff. Applying VCC before GND, or connecting inputs before supply stabilization, may cause latch-up or excessive current. Follow Nexperia's recommended power sequencing: GND first, then VCC, then inputs - especially in modular automotive ECUs with field-replaceable boards.
74HC174D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 6
- Clock Frequency:
- 107 MHz
- Max Propagation Delay @ V, Max CL:
- 28ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC174D-Q100J FAQ
1.How can I place an order for 74HC174D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC174D-Q100J 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 74HC174D-Q100J reliable?
The price and inventory of 74HC174D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC174D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC174D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC174D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC174D-Q100J?
74HC174D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC174D-Q100J 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 74HC174D-Q100J?
For technical support, including 74HC174D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC174D-Q100J requirements.
6.How does Aetrix verify that 74HC174D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC174D-Q100J 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 74HC174D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC174D-Q100J?
All 74HC174D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC174D-Q100J, 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 74HC174D-Q100J part is unused and in its original packaging.
Return procedure for 74HC174D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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