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Nexperia USA Inc. 74AHCT1G79GW-Q100H
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- Part No.:
- 74AHCT1G79GW-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHCT1G79GW-Q100H.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,382
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Product details
Overview
74AHCT1G79GW-Q100 from Nexperia is a single positive-edge-triggered D-type flip-flop in TSSOP5 (SOT353-1) package, qualified to AEC-Q100 Grade 1 for automotive use. It operates from -40 °C to +125 °C with supply voltage 4.5–5.5 V, TTL-compatible inputs, and delivers 3.5 ns typical propagation delay (CL = 15 pF, VCC = 5.0 V). It functions as a synchronous data latch in engine control units and ADAS clock domain synchronization.
For engineers reviewing the 74AHCT1G79GW-Q100 datasheet, 74AHCT1G79GW-Q100 pinout, 74AHCT1G79GW-Q100 application, or 74AHCT1G79GW-Q100 equivalent, this page provides verified functional behavior, automotive-grade thermal and ESD specs, pin-accurate terminal mapping, and real-world timing constraints for mixed-voltage signal conditioning.
Technical Context
This device implements a basic edge-triggered storage element with asynchronous reset-free operation. Its TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensure compatibility with legacy 5 V logic families while maintaining CMOS output drive strength (±8 mA).
Propagation delay (tpd ≤ 8.0 ns at CL = 50 pF), set-up time (tsu = 3.0 ns), and hold time (th = +2.0 ns) are specified across full automotive temperature range. Input overvoltage tolerance up to 5.5 V enables safe interfacing between 3.3 V and 5 V domains without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Single D-type flip-flop with positive-edge clock triggering |
| Supply Voltage Range | 4.5–5.5 V - supports stable operation in 5 V automotive power rails |
| Input Compatibility | TTL-level - interfaces directly with 74LS, 74F, and microcontroller GPIOs at 5 V |
| Propagation Delay | 3.5 ns (typ) at VCC = 5.0 V, CL = 15 pF - enables >90 MHz clock rates in low-latency paths |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood and transmission control module environments |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets automotive robustness requirements per JS-001/JS-002 |
| AEC-Q100 Grade | Grade 1 - certified for passenger vehicle powertrain and chassis applications |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, pin 1 index in lower-left corner below marking "CP".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D | Data input - sampled on rising edge of CP; overvoltage tolerant to 5.5 V |
| 2 | CP | Clock pulse input - positive-edge sensitive; TTL-compatible threshold |
| 3 | GND | Ground reference - return path for all internal logic and I/O currents |
| 4 | Q | Data output - CMOS push-pull, symmetrical drive (±8 mA), rail-to-rail swing |
| 5 | VCC | Supply voltage - powers internal logic and output stage; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive powertrain and safety-critical modules operating at 125 °C ambient |
| TTL input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - ensures interoperability with legacy 5 V logic families |
| Overvoltage-tolerant inputs | Withstands 5.5 V on D and CP pins regardless of VCC - eliminates external clamping in mixed-voltage systems |
| Low dynamic power | CPD = 16 pF - reduces switching current in high-frequency clock distribution networks |
| Symmetrical output impedance | Matched rise/fall times and drive strength - minimizes skew in timing-critical feedback paths |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Synchronizing sensor sampling clocks across multiple CAN nodes with independent crystal sources. IC Role / Device Role / Timing Role: Edge-triggered data latch aligning asynchronous trigger pulses to the main ECU clock domain. Use Value: Eliminates metastability in crankshaft position signal capture by enforcing deterministic setup/hold timing (tsu = 3.0 ns, th = +2.0 ns). |
Use Scenario: Debouncing radar module interrupt signals before feeding into a safety MCU's IRQ line. IC Role / Device Role / Timing Role: Single-stage synchronizer converting noisy, slow-rising analog comparator outputs into clean, glitch-free digital edges. Use Value: Prevents false triggers during voltage transients using 5.5 V-tolerant inputs and 125 °C-rated operation near radar front-end ICs. |
| Body Control Module (BCM) | Infotainment System Power Sequencing |
Use Scenario: Latching door lock status signals from mechanical switches before CAN transmission. IC Role / Device Role / Timing Role: Positive-edge D flip-flop capturing momentary switch closures synchronized to BCM system clock. Use Value: Ensures reliable state capture despite contact bounce, leveraging 3.0 ns minimum clock pulse width and 90 MHz max frequency capability. |
Use Scenario: Controlling power-on sequence of display driver and audio codec ICs via timed enable signals. IC Role / Device Role / Timing Role: Clock-domain translator generating delayed enable pulses from a master PMIC output. Use Value: Enables precise inter-IC power sequencing using TTL-compatible inputs and rail-to-rail CMOS outputs driving 5 V logic enables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT1G79GV-Q100 | Same electrical specs; SC-74A (SOT753) package - 2.7 mm × 1.7 mm body, 0.95 mm pitch | Preferred for manual assembly or reflow profiles incompatible with TSSOP5 thermal mass | Select when board layout requires larger pad spacing or hand-soldering feasibility |
| 74AHCT1G79GZ-Q100 | Same electrical specs; XSON5 (SOT8065-1) package - 1.1 × 0.85 × 0.5 mm, side-wettable flanks | Targeted for space-constrained ADAS camera modules requiring automated optical inspection (AOI) | Select when footprint area < 1.0 mm² and AOI-capable solder joint verification are mandatory |
Compared with 74AHCT1G79GW-Q100, the GV variant offers easier handling and thermal relief in high-power-density layouts, while the GZ variant reduces PCB area by 58% and enables closed-loop solder quality validation - both retain identical timing, voltage, and AEC-Q100 compliance.
Availability
74AHCT1G79GW-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS sensor interfaces, body control modules, and infotainment power sequencing requiring stable component supply across automotive production lifecycles.
Supply support for 74AHCT1G79GW-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 logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
This device belongs to Nexperia's automotive-qualified 74AHCT logic family, designed specifically for robust, low-power signal conditioning and synchronization in harsh-temperature automotive subsystems.
FAQ
What is the maximum clock frequency supported by the 74AHCT1G79GW-Q100?
The 74AHCT1G79GW-Q100 supports up to 90 MHz at 25 °C and 70 MHz across the full -40 °C to +125 °C automotive temperature range, as validated by dynamic characterization with CL = 15 pF and VCC = 5.0 V. This rating assumes proper PCB layout with minimized trace inductance and local decoupling.
Can the 74AHCT1G79GW-Q100 interface directly with 3.3 V microcontrollers?
Yes - its inputs tolerate up to 5.5 V regardless of VCC, allowing direct connection to 3.3 V GPIOs driving the D or CP pins. However, its outputs swing rail-to-rail (0 V to VCC), so a 5 V supply requires level translation if feeding into a 3.3 V receiver's absolute maximum input rating.
Does this device include an asynchronous reset or preset function?
No - the 74AHCT1G79GW-Q100 implements only a basic positive-edge-triggered D flip-flop with no asynchronous control inputs. Its function table confirms Q+1 depends solely on D and CP transitions, with no provision for forced reset or set states independent of the clock.
How does the TSSOP5 package affect thermal performance in automotive under-hood applications?
The SOT353-1 (TSSOP5) package has a thermal resistance θJA of approximately 220 K/W, with total power dissipation derating linearly at 3.3 mW/K above 74 °C. At 125 °C ambient and 100 μA ICC, self-heating remains within safe limits, making it suitable for non-high-power ECU subfunctions.
74AHCT1G79GW-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Clock Frequency:
- 90 MHz
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 1 µA
- Input Capacitance:
- 1.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74AHCT1G79GW-Q100H FAQ
1.How can I place an order for 74AHCT1G79GW-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G79GW-Q100H 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 74AHCT1G79GW-Q100H reliable?
The price and inventory of 74AHCT1G79GW-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G79GW-Q100H is usually 5 days.
3.What payment methods are accepted for 74AHCT1G79GW-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G79GW-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G79GW-Q100H?
74AHCT1G79GW-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G79GW-Q100H 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 74AHCT1G79GW-Q100H?
For technical support, including 74AHCT1G79GW-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G79GW-Q100H requirements.
6.How does Aetrix verify that 74AHCT1G79GW-Q100H is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G79GW-Q100H 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 74AHCT1G79GW-Q100H meets industry standards.
7.What is the process for return or replacement of 74AHCT1G79GW-Q100H?
All 74AHCT1G79GW-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G79GW-Q100H, 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 74AHCT1G79GW-Q100H part is unused and in its original packaging.
Return procedure for 74AHCT1G79GW-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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