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Nexperia USA Inc. 74HC74D-Q100HL
- Part No.:
- 74HC74D-Q100HL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC74D-Q100HL.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,028
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Product details
Overview
74HC74D-Q100 from Nexperia is a dual positive-edge-triggered D-type flip-flop with independent asynchronous set (nSD) and reset (nRD) inputs, complementary Q/nQ outputs per section, CMOS-level input compatibility, and AEC-Q100 Grade 1 qualification for automotive use. It operates from -40 °C to +125 °C, supports 2.0–6.0 V supply, and delivers 14 ns propagation delay at VCC = 6.0 V (CL = 50 pF), enabling reliable data latching in engine control units and ADAS clock domain synchronization.
For engineers reviewing the 74HC74D-Q100 datasheet, 74HC74D-Q100 pinout, 74HC74D-Q100 application, or 74HC74D-Q100 equivalent, this page provides verified functional identity, SO14 package mapping, validated timing parameters (tsu = 13 ns, th = 3 ns, fmax = 82 MHz), automotive-grade thermal and ESD specs (HBM > 2000 V), and direct pin-level circuit role definitions - all confirmed against Nexperia's Rev. 5 (2 April 2024) product data sheet.
Technical Context
This device implements two independent edge-triggered storage cells, each with fully asynchronous active-low set and reset controls that override clocked data capture. Its Schmitt-trigger clock input ensures robust operation with slow-rising waveforms, while integrated input clamp diodes permit safe interfacing to voltages exceeding VCC via current-limiting resistors.
It complies with JEDEC Standard No. 7A and supports dual logic families: 74HC74D-Q100 uses CMOS input thresholds (VIH = 4.2 V min at VCC = 6.0 V), whereas the pin-compatible 74HCT74D-Q100 variant accepts TTL-level inputs (VIH = 2.0 V min at VCC = 4.5 V). Both share identical pinout, package, and dynamic performance under matched supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Dual D-type flip-flop with independent asynchronous set/reset and complementary outputs |
| Trigger Edge | Positive (LOW-to-HIGH) clock transition - data sampled only on rising edge |
| Supply Voltage | 2.0–6.0 V - enables direct interface with 3.3 V and 5 V automotive subsystems |
| Propagation Delay | 14 ns max at VCC = 6.0 V, CL = 50 pF - supports >70 MHz synchronous operation in timing-critical paths |
| Set-up / Hold Time | tsu = 13 ns / th = 3 ns at VCC = 6.0 V - defines minimum data stability window before/after clock edge |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - qualified for powertrain, body control, and ADAS modules |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - withstands assembly handling and in-vehicle electrostatic events |
Pinout & Package
74HC74D-Q100 is supplied in SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 index located at top-left corner with notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1RD | Asynchronous reset (Channel 1) | Active-LOW direct reset - forces 1Q = LOW, 1Q = HIGH regardless of clock or data state |
| 1D | Data input (Channel 1) | Stores logic level at next positive clock edge if set/reset inactive |
| 1CP | Clock input (Channel 1) | Schmitt-triggered rising-edge detector - tolerates slow edges up to 83 ns/V slew rate |
| 1SD | Asynchronous set (Channel 1) | Active-LOW direct set - forces 1Q = HIGH, 1Q = LOW regardless of clock or data state |
| 1Q | True output (Channel 1) | Complements 1Q; driven low during 1RD assertion, high during 1SD assertion |
| 1Q | Inverted output (Channel 1) | Complements 1Q; mirrors 1Q state when not overridden by set/reset |
| GND | Ground reference | 0 V return path for all internal circuitry and I/O; pin 7 is dedicated ground |
| 2Q | Inverted output (Channel 2) | Complements 2Q; mirrors 2Q state unless overridden by 2SD or 2RD |
| 2Q | True output (Channel 2) | Complements 2Q; driven low during 2RD assertion, high during 2SD assertion |
| 2SD | Asynchronous set (Channel 2) | Active-LOW direct set - forces 2Q = HIGH, 2Q = LOW regardless of clock or data state |
| 2CP | Clock input (Channel 2) | Independent Schmitt-triggered rising-edge detector - no crosstalk with Channel 1 |
| 2D | Data input (Channel 2) | Stores logic level at next positive clock edge if 2SD/2RD inactive |
| 2RD | Asynchronous reset (Channel 2) | Active-LOW direct reset - forces 2Q = LOW, 2Q = HIGH regardless of clock or data state |
| VCC | Positive supply | Primary power rail (2.0–6.0 V); decoupling capacitor required between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger clock input | Enables reliable triggering with slow-rising signals (Δt/ΔV down to 83 ns/V), eliminating need for external signal conditioning |
| Input clamp diodes | Allow safe interface to voltages > VCC using series current-limiting resistors - simplifies mixed-voltage board design |
| CMOS input thresholds | VIH = 4.2 V min at VCC = 6.0 V ensures noise margin >1.2 V in 5 V systems, reducing false triggering risk |
| Symmetrical output drive | IO = ±25 mA capability with balanced rise/fall times (tt = 6–19 ns) maintains signal integrity in fan-out-heavy nets |
| Low static power | ICC = 40 μA max at VCC = 6.0 V enables battery-sensitive applications like keyless entry modules |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Synchronizing sensor sampling clocks across multiple microcontrollers in a distributed ECU architecture. IC Role / Device Role / Timing Role: Dual-channel edge-triggered latch isolating noisy CAN bus timing domains from critical ADC sample strobes. Use Value: Asynchronous set/reset allows immediate fault recovery without waiting for next clock cycle; 14 ns tpd ensures sub-microsecond deterministic response. |
Use Scenario: Debouncing radar module enable signals subject to electromagnetic interference in front-end sensor clusters. IC Role / Device Role / Timing Role: Positive-edge D flip-flop acting as synchronized input synchronizer and metastability filter for safety-critical enable lines. Use Value: Schmitt-trigger CP input rejects <83 ns/V noise transients; AEC-Q100 Grade 1 rating guarantees operation at 125 °C junction temperature. |
| Body Control Module (BCM) | Infotainment System Power Sequencing |
Use Scenario: Controlling sequential activation of door lock actuators with precise timing and fail-safe reset capability. IC Role / Device Role / Timing Role: Dual DFF providing independent enable gating for left/right door circuits, with hardware reset tied to ignition status. Use Value: Independent nSD/nRD pins allow per-channel forced deactivation during system faults; 2.0–6.0 V VCC range matches vehicle battery fluctuations. |
Use Scenario: Managing power-up sequence of display backlight, audio codec, and processor core rails in head-unit designs. IC Role / Device Role / Timing Role: Dual-edge-triggered storage element generating staggered enable pulses from a single master clock. Use Value: Complementary Q/nQ outputs eliminate need for external inverters; low ICC (40 μA) minimizes standby current in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT74D-Q100 | TTL-compatible inputs (VIH = 2.0 V min), otherwise identical pinout, timing, and packaging | Required when interfacing legacy 5 V TTL logic without level shifters | Select when driving from standard 5 V TTL outputs; retains same PCB layout and thermal profile |
| SN74LVC74AQPWRQ1 | Lower VCC range (1.65–5.5 V), higher speed (tpd = 5.4 ns typ), different pinout (TSSOP14) | Supports 1.8 V I/O domains and faster clock rates but requires board redesign | Choose for new designs targeting 1.8 V/3.3 V mixed-signal systems where speed >70 MHz is mandatory |
Compared with 74HC74D-Q100, the 74HCT74D-Q100 offers seamless integration into existing 5 V TTL environments without voltage translation, while SN74LVC74AQPWRQ1 enables next-generation low-voltage, high-speed automotive interfaces at the cost of layout change and reduced noise margin at 5 V.
Availability
74HC74D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS sensor synchronization, and body control modules requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74HC74D-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 essential efficiency technologies, delivering high-performance, high-reliability components for automotive, industrial, and consumer markets.
The 74HC74-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robust digital signal conditioning and timing control in harsh-temperature, high-reliability vehicle subsystems.
FAQ
What is the maximum operating frequency of the 74HC74D-Q100?
The 74HC74D-Q100 achieves a maximum clock frequency of 82 MHz at VCC = 6.0 V and CL = 50 pF, as specified in Table 8 of the Rev. 5 datasheet. At 4.5 V, fmax drops to 69 MHz. This rating assumes proper load capacitance, decoupling, and signal integrity - actual system-level frequency may be limited by PCB trace delays and fan-out.
Can the 74HC74D-Q100 operate with a 3.3 V supply?
Yes - the 74HC74D-Q100 is fully specified for VCC = 2.0 V to 6.0 V, including 3.3 V operation. At 3.3 V, VIH = 2.31 V (70% of VCC) and VIL = 0.99 V (30% of VCC) per static characteristics, ensuring compatibility with standard 3.3 V CMOS logic families and sufficient noise margin.
How does the Schmitt-trigger clock input improve system reliability?
The Schmitt-trigger action on the clock input provides hysteresis (typical 0.3 V at VCC = 4.5 V), making the device tolerant to slow or noisy clock edges. It prevents multiple triggering from slowly rising signals and rejects high-frequency noise below the hysteresis threshold - critical for automotive environments with long harness runs and EMI exposure.
Is the 74HC74D-Q100 pin-compatible with non-automotive versions like 74HC74D?
No - while electrically identical, the 74HC74D-Q100 undergoes full AEC-Q100 stress testing (including temperature cycling, HTOL, and ESD) and is characterized across −40 °C to +125 °C. The standard 74HC74D is rated only to +85 °C and lacks automotive qualification documentation, making it unsuitable for safety-critical vehicle applications.
74HC74D-Q100HL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 82 MHz
- Max Propagation Delay @ V, Max CL:
- 37ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 40 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HC74D-Q100HL FAQ
1.How can I place an order for 74HC74D-Q100HL through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC74D-Q100HL 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 74HC74D-Q100HL reliable?
The price and inventory of 74HC74D-Q100HL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC74D-Q100HL is usually 5 days.
3.What payment methods are accepted for 74HC74D-Q100HL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC74D-Q100HL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC74D-Q100HL?
74HC74D-Q100HL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC74D-Q100HL 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 74HC74D-Q100HL?
For technical support, including 74HC74D-Q100HL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC74D-Q100HL requirements.
6.How does Aetrix verify that 74HC74D-Q100HL is sourced from the original manufacturer or authorized distributors?
All 74HC74D-Q100HL 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 74HC74D-Q100HL meets industry standards.
7.What is the process for return or replacement of 74HC74D-Q100HL?
All 74HC74D-Q100HL units undergo pre-shipment inspection (PSI). If there is an issue with 74HC74D-Q100HL, 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 74HC74D-Q100HL part is unused and in its original packaging.
Return procedure for 74HC74D-Q100HL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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