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Nexperia USA Inc. 74AHCT1G79GV,125
- Part No.:
- 74AHCT1G79GV,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHCT1G79GV,125.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT SC74A
- Quantity:
- Payment:
- Shipping:
Inventory:2,699
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Product details
Overview
74AHCT1G79GV,125 from Nexperia is a single positive-edge-triggered D-type flip-flop in SC-74A (SOT753) package, operating from 4.5 V to 5.5 V with TTL-compatible inputs and CMOS outputs. It provides synchronous data storage with 3.5 ns typical propagation delay (CL = 15 pF, VCC = 5.0 V), 3.0 ns minimum set-up time, and supports industrial temperature range (–40 °C to +125 °C). Used for clock-synchronized signal latching in digital control logic.
For engineers reviewing the 74AHCT1G79GV,125 datasheet, 74AHCT1G79GV,125 pinout, 74AHCT1G79GV,125 application, or 74AHCT1G79GV,125 equivalent, key selection criteria include input voltage compatibility (TTL-level thresholds), edge-trigger timing margins, thermal performance in compact SOT753 layout, and latch-up immunity in mixed-voltage systems.
Technical Context
This device implements a basic synchronous D-flip-flop function with non-inverting Q output and no reset/set control. Its TTL-input threshold (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V) enables direct interfacing with legacy 5 V logic families while driving CMOS loads with rail-to-rail output swing.
Propagation delay (tpd ≤ 8.0 ns max at CL = 50 pF, –40 °C to +125 °C) and pulse width requirement (tW ≥ 3.0 ns min) define its usable clock frequency ceiling of 70 MHz under worst-case thermal conditions, with symmetrical output drive strength (IO = ±8.0 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Single D-type flip-flop, positive-edge triggered |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL systems and stable operation across full industrial temperature range |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees reliable recognition of standard TTL logic levels |
| Propagation Delay | ≤ 8.0 ns (CL = 50 pF, –40 °C to +125 °C) - sets maximum clock frequency at 70 MHz in worst-case thermal condition |
| Set-up / Hold Time | tsu ≥ 3.0 ns, th ≥ 2.0 ns - defines minimum data stability window before and after clock edge for reliable sampling |
| Output Drive | ±8.0 mA (VOH/VOL tested at VCC = 4.5 V) - supports fan-out into multiple CMOS inputs or moderate capacitive loads |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood, industrial control, and power-conversion applications |
Pinout & Package
SC-74A (SOT753) plastic surface-mounted package: 5-lead, 1.1 mm × 1.3 mm body, 0.65 mm pitch, 0.95 mm height. Pin 1 index located below marking "C79" on lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D | Data input - sampled on rising edge of CP; overvoltage tolerant to 5.5 V |
| 2 | CP | Positive-edge clock input - triggers state update only on LOW-to-HIGH transition |
| 3 | GND | Ground reference - must be low-impedance return path for all internal switching currents |
| 4 | Q | Non-inverting output - reflects stored D value after CP edge; drives CMOS-compatible loads |
| 5 | VCC | Supply voltage - powers internal logic; decoupling capacitor required near pin for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | Enables direct interface with legacy 5 V microcontrollers, FPGAs, and logic families without level-shifting |
| Overvoltage-tolerant inputs | Accepts up to 5.5 V on D and CP pins even when VCC = 4.5 V - simplifies mixed-voltage board design |
| Symmetrical output impedance | Ensures matched rise/fall times and reduced signal distortion in high-speed routing |
| Latch-up immunity >100 mA | Meets JESD78 Class II Level A - prevents destructive latch-up during transient overvoltage events |
| Low dynamic power dissipation | CPD = 16 pF - minimizes switching current draw and heat generation in battery-powered or thermally constrained designs |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Latching sensor status (e.g., door open/closed) synchronized to system clock in real-time control loop. IC Role / Device Role / Timing Role: D-flip-flop captures debounced switch input on each clock edge, eliminating metastability in asynchronous signal capture. Use Value: Guarantees deterministic sampling with 3.0 ns set-up margin and 70 MHz max clock rate, enabling tight control cycle timing. | Use Scenario: Isolating and synchronizing wake-up signals from external modules (e.g., key fob receiver) to main MCU domain. IC Role / Device Role / Timing Role: Acts as a clock-domain crossing (CDC) synchronizer between asynchronous interrupt sources and synchronous MCU clock tree. Use Value: Overvoltage-tolerant inputs accept 5 V wake signals directly; –40 °C to +125 °C rating ensures reliability in under-dash environments. |
| Power Supply Sequencing Controller | Test Equipment Digital Pattern Generator |
Use Scenario: Enabling/disabling DC-DC converter enable lines in strict sequence based on system boot state machine. IC Role / Device Role / Timing Role: Stores sequencing command bits from microcontroller GPIO, releasing them synchronously to downstream regulators. Use Value: Low propagation delay (≤8 ns) and precise edge-triggering ensure sub-10 ns timing alignment across multiple power rails. | Use Scenario: Generating repeatable digital stimulus waveforms for IC functional validation in ATE systems. IC Role / Device Role / Timing Role: Forms part of shift-register-based pattern generator core, storing and shifting test vectors on master clock edges. Use Value: TTL-level inputs simplify connection to FPGA pattern generators; 5-pin SOT753 footprint saves board space in dense test head layouts. |
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 |
|---|---|---|---|
| 74AHCT1G79GW,125 | TSSOP5 (SOT353-1) package - 1.25 mm body width, 0.65 mm pitch, taller profile (1.1 mm height) | Better thermal dissipation (Ptot derates at 3.3 mW/K above 74 °C vs. 3.8 mW/K for SOT753), suited for higher ambient temp PCB zones | Select when board layout allows larger footprint and thermal management prioritizes over miniaturization |
| SN74LVC1G79DBVR | CMOS input thresholds (VIH = 70% VCC), 1.65–5.5 V supply, different pinout (D/Q swapped), same SOT753 package | Requires level translation for TTL sources; wider VCC range enables 3.3 V system integration but lacks native TTL compatibility | Select only if migrating to 3.3 V logic family and redesigning input interface; not drop-in compatible |
Compared with 74AHCT1G79GW,125, the GV variant offers smaller footprint and higher power density; compared with SN74LVC1G79DBVR, it delivers guaranteed TTL-level recognition without external biasing, critical for legacy 5 V system interoperability.
Availability
74AHCT1G79GV,125 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, power supply sequencing controllers, and test equipment digital pattern generators requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT1G79GV,125 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.
The 74AHCT series targets robust, pin-compatible replacements for legacy TTL logic with CMOS power efficiency and enhanced ESD/latch-up immunity - designed specifically for mixed-voltage industrial control and automotive subsystems.
FAQ
What is the maximum clock frequency supported by 74AHCT1G79GV,125?
The device supports up to 90 MHz at 25 °C and 70 MHz across the full industrial temperature range (–40 °C to +125 °C), verified by dynamic characterization with CL = 50 pF load. This limit derives from worst-case propagation delay (≤11.0 ns) and minimum pulse width (≥4.0 ns) requirements per the datasheet's Table 8.
Can 74AHCT1G79GV,125 operate with a 3.3 V supply?
No - the 74AHCT1G79 variant is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) are optimized for 5 V systems; using 3.3 V violates recommended operating conditions and risks unreliable logic recognition. For 3.3 V use, select the 74AHC1G79GV variant instead.
Is the 74AHCT1G79GV,125 pinout compatible with other single-gate logic devices in SOT753?
Yes - it follows the standard SOT753 pinout for single-gate logic: Pin 1 = D, Pin 2 = CP, Pin 3 = GND, Pin 4 = Q, Pin 5 = VCC. This matches industry conventions for 5-pin D-flip-flops and aligns with Nexperia's own 74AHC1G79GV, ensuring consistent PCB layout reuse across AHCT/AHC variants.
Does 74AHCT1G79GV,125 include internal ESD protection?
Yes - it features integrated HBM ESD protection exceeding 2000 V (ANSI/ESDA/JEDEC JS-001 Class 2) and CDM protection exceeding 1000 V (JS-002 Class C3), validated per JEDEC standards. These ratings are inherent to the silicon process and require no external components for basic handling robustness.
74AHCT1G79GV,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- SC-74A, SOT-753
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
74AHCT1G79GV,125 FAQ
1.How can I place an order for 74AHCT1G79GV,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G79GV,125 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 74AHCT1G79GV,125 reliable?
The price and inventory of 74AHCT1G79GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G79GV,125 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G79GV,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G79GV,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G79GV,125?
74AHCT1G79GV,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G79GV,125 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 74AHCT1G79GV,125?
For technical support, including 74AHCT1G79GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G79GV,125 requirements.
6.How does Aetrix verify that 74AHCT1G79GV,125 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G79GV,125 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 74AHCT1G79GV,125 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G79GV,125?
All 74AHCT1G79GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G79GV,125, 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 74AHCT1G79GV,125 part is unused and in its original packaging.
Return procedure for 74AHCT1G79GV,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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