My Inquiry
My Account
Nexperia USA Inc. 74HC74D-Q100,118
- Part No.:
- 74HC74D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC74D-Q100,118.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HC74D-Q100 from Nexperia is an automotive-qualified dual positive-edge-triggered D-type flip-flop with independent asynchronous set (nSD) and reset (nRD) inputs, complementary Q/nQ outputs per section, 14-pin SO14 package (SOT108-1), and operation up to +125 °C. It stores data on LOW-to-HIGH clock transitions with 13 ns typical propagation delay at VCC = 6.0 V, Schmitt-trigger clock input for tolerance to slow edges, and CMOS-level inputs. It is used in automotive body control modules for synchronizing sensor sampling and actuator enable timing.
For engineers reviewing the 74HC74D-Q100 datasheet, 74HC74D-Q100 pinout, 74HC74D-Q100 application, or 74HC74D-Q100 equivalent, this page delivers verified functional identity, AEC-Q100 Grade 1 qualification status, SO14 pin mapping, dynamic timing under 125 °C operation, and direct alternatives with TTL/CMOS logic family compatibility.
Technical Context
The device implements two independent edge-triggered D latches sharing no internal coupling-each has dedicated nD, nCP, nSD, nRD, nQ, and nQ terminals. Its Schmitt-trigger clock input ensures reliable triggering even with rise/fall times up to 265 ns at VCC = 2.0 V, while clamp diodes on all inputs permit safe interfacing to voltages exceeding VCC via current-limiting resistors.
It operates across -40 °C to +125 °C with supply voltage range 2.0–6.0 V, supports 82 MHz maximum clock frequency at VCC = 6.0 V/CL = 50 pF, and exhibits symmetrical output drive (±25 mA), balanced tPLH/tPHL delays, and low ICC of 40 μA typical at VCC = 6.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC: CMOS-compatible inputs; enables direct connection to microcontroller GPIOs without level shifters. |
| Operating Temperature | -40 °C to +125 °C: Qualified per AEC-Q100 Grade 1 for under-hood automotive use. |
| Propagation Delay (tpd) | 14 ns typical at VCC = 6.0 V: Enables reliable synchronization in high-speed digital subsystems like lighting control sequencers. |
| Supply Voltage Range | 2.0 V to 6.0 V: Supports wide-input automotive power rails including 3.3 V and 5 V domains. |
| Output Drive Strength | ±25 mA: Sufficient to directly drive LEDs, small relays, or fan enable lines without external buffers. |
| Input Clamp Diodes | Integrated: Allows safe interface to 12 V signals using series resistors-no external protection required. |
| ESD Protection | HBM >2000 V, CDM >1000 V: Robust handling during PCB assembly and in-field service. |
Pinout & Package
74HC74D-Q100 uses the SO14 plastic small outline package (SOT108-1), 14-lead, 3.9 mm body width, with gull-wing leads and pin 1 index notch. Thermal resistance θJA = 100 K/W (JEDEC std).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1RD | Asynchronous reset (active LOW) | Forces 1Q = LOW regardless of clock or data; used for system-wide initialization or fault recovery. |
| 1D | Data input (Channel 1) | Samples and holds value on next rising clock edge; requires 13 ns setup time at VCC = 6.0 V. |
| 1CP | Clock input (Channel 1) | Schmitt-triggered; triggers on LOW-to-HIGH transition; tolerates <10 ns rise time degradation. |
| 1SD | Asynchronous set (active LOW) | Forces 1Q = HIGH independently of clock; used for fail-safe output assertion. |
| 1Q / 1Q | Complementary outputs (Channel 1) | True and inverted latched outputs; both available simultaneously for differential signaling or logic redundancy. |
| GND | Ground reference (Pin 7) | Primary return path; must be low-inductance connection to minimize ground bounce in switching noise. |
| 2Q / 2Q | Complementary outputs (Channel 2) | Independent of Channel 1; enables dual-signal capture (e.g., encoder A/B quadrature sampling). |
| 2SD / 2RD | Asynchronous set/reset (Channel 2) | Separate control per channel-enables staggered reset sequencing in multi-stage timing circuits. |
| VCC | Supply voltage (Pin 14) | Accepts 2.0–6.0 V; decoupling capacitor (100 nF) required within 5 mm of pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at +125 °C ambient-meets automotive engine compartment requirements. |
| Schmitt-trigger clock input | Enables reliable edge detection with >200 ns input rise/fall time margin-eliminates need for external signal conditioning. |
| Clamp diode protected inputs | Permits direct 12 V interface using 10 kΩ series resistors-reduces BOM count and layout area. |
| Symmetrical output impedance | Ensures matched rise/fall times (<19 ns) and eliminates duty-cycle distortion in clock distribution paths. |
| Low static current | ICC ≤ 40 μA typical at VCC = 6.0 V-critical for always-on vehicle modules with strict quiescent power budgets. |
Applications
| Body Control Module (BCM) | Advanced Lighting Control |
|---|---|
Use Scenario: Latching door lock/unlock commands from CAN gateway and synchronizing window motor enable pulses with anti-pinch timeout windows. IC Role / Device Role / Timing Role: Dual D-flip-flop acts as synchronized command register and safety timer trigger latch-ensuring deterministic response to transient switch inputs. Use Value: Prevents spurious actuation from contact bounce or EMI by requiring clean clocked sampling; asynchronous set/reset allows immediate override during fault conditions. |
Use Scenario: Capturing PWM dimming state and enabling LED driver ICs only when valid brightness level and thermal OK signals coincide. IC Role / Device Role / Timing Role: Edge-triggered storage element for safety-critical enable signals-decouples microcontroller timing from driver IC startup sequence. Use Value: Guarantees that LED drivers activate only after both control and health signals are validated, eliminating flash-on-failure behavior. |
| Power Distribution Unit (PDU) | Instrument Cluster Interface |
Use Scenario: Debouncing ignition switch inputs and latching relay control states for HVAC blower and seat heater circuits. IC Role / Device Role / Timing Role: Asynchronous set/reset-capable latch provides hardware-level state retention independent of MCU firmware execution. Use Value: Maintains safe power-off state during MCU reset or brownout-prevents uncontrolled load activation during boot sequences. |
Use Scenario: Synchronizing analog gauge stepper motor step pulses with digital display updates to avoid visual jitter during CAN message bursts. IC Role / Device Role / Timing Role: Dual-channel edge-triggered register aligns microcontroller-generated step commands to a clean local clock domain. Use Value: Eliminates metastability-induced missed steps or double-steps-ensuring precise needle positioning despite bus latency variations. |
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); identical pinout, timing, and AEC-Q100 qualification. | Required when interfacing legacy 5 V TTL logic or microcontrollers with non-rail-to-rail outputs. | Select when driving from 5 V CMOS or TTL sources lacking full 0–VCC swing-no redesign needed beyond VCC selection. |
| SN74LVC74AQPWRQ1 | Lower VCC range (1.65–5.5 V), 32 mA drive, smaller TSSOP14 package (SOT402-1), same AEC-Q100 Grade 1. | Better suited for space-constrained modules; higher drive supports longer trace routing in infotainment backplanes. | Choose for new designs targeting lower supply voltage headroom or tighter board area-requires PCB footprint change. |
Compared with 74HC74D-Q100, the 74HCT74D-Q100 offers seamless integration with mixed-voltage 5 V TTL systems, while SN74LVC74AQPWRQ1 provides enhanced drive capability and compact packaging-both retain full automotive qualification but differ in voltage compatibility and physical integration constraints.
Availability
74HC74D-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, advanced lighting control systems, and power distribution units requiring stable component supply across extended temperature ranges and long production lifecycles.
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 specializing in high-performance, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC74-Q100 product line delivers AEC-Q100 qualified, high-speed CMOS flip-flops designed specifically for automotive subsystems requiring deterministic timing, robust ESD immunity, and extended temperature operation.
FAQ
What is the maximum clock frequency supported by 74HC74D-Q100 at 125 °C?
At VCC = 6.0 V and CL = 50 pF, the 74HC74D-Q100 supports up to 24 MHz maximum clock frequency over the full -40 °C to +125 °C range. This is confirmed in Table 8 of the Rev. 5 datasheet under "-40 °C to +125 °C" column for fmax parameter. Derating applies above 100 °C per Ptot linear derating rule (10.1 mW/K).
Can 74HC74D-Q100 interface directly with a 12 V sensor signal?
Yes-its inputs include integrated clamp diodes, allowing safe interface to 12 V signals using a single series current-limiting resistor (e.g., 10 kΩ). The absolute maximum input voltage is VCC + 0.5 V, and IIK is rated ±20 mA, making it suitable for automotive sensor pull-up configurations without external protection components.
Does 74HC74D-Q100 have separate power and ground pins for each flip-flop section?
No-it uses a single VCC (Pin 14) and single GND (Pin 7) for both flip-flop channels. The device is monolithic with shared supply rails; there are no isolated power domains or independent ground pins. Layout best practice requires low-inductance, star-connected decoupling near Pin 14 and Pin 7.
How does the Schmitt-trigger clock input improve system reliability?
The Schmitt-trigger action on nCP provides hysteresis (~0.3 V at VCC = 5 V), enabling reliable edge detection even with slow or noisy clock edges (rise/fall times up to 265 ns at VCC = 2.0 V). This eliminates false triggering from EMI or RC-filtered signals-critical in automotive environments where wiring harnesses induce significant noise.
74HC74D-Q100,118 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:
- Active
- 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-Q100,118 FAQ
1.How can I place an order for 74HC74D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC74D-Q100,118 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-Q100,118 reliable?
The price and inventory of 74HC74D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC74D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HC74D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC74D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC74D-Q100,118?
74HC74D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC74D-Q100,118 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-Q100,118?
For technical support, including 74HC74D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC74D-Q100,118 requirements.
6.How does Aetrix verify that 74HC74D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HC74D-Q100,118 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-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HC74D-Q100,118?
All 74HC74D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC74D-Q100,118, 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-Q100,118 part is unused and in its original packaging.
Return procedure for 74HC74D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC74D-Q100,118 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
