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Nexperia USA Inc. 74AHC1G79GW,125
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- Part No.:
- 74AHC1G79GW,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHC1G79GW,125.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:79,816
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Product details
Overview
74AHC1G79GW,125 from Nexperia is a single positive-edge-triggered D-type flip-flop in TSSOP5 (SOT353-1) package, operating from 2.0 V to 5.5 V supply, with CMOS-level inputs, 8.4 ns typical propagation delay at 3.3 V/15 pF, and overvoltage-tolerant inputs up to 5.5 V. It functions as a synchronous storage element in digital control logic, data synchronization, and clock-domain crossing circuits.
For engineers reviewing the 74AHC1G79GW,125 datasheet, 74AHC1G79GW,125 pinout, 74AHC1G79GW,125 application, or 74AHC1G79GW,125 equivalent, key selection criteria include setup/hold timing (3.0 ns / +2.0 ns), rail-to-rail output swing, -40 °C to +125 °C industrial temperature range, and input overvoltage tolerance enabling mixed-voltage interface translation.
Technical Context
This device implements a basic edge-triggered D flip-flop with asynchronous behavior governed solely by the LOW-to-HIGH clock transition. Its internal structure uses standard CMOS transmission gates and inverters to latch D-input data meeting set-up and hold time requirements, delivering deterministic Q-output state changes only on clock rising edges.
No internal reset or preset is present; operation relies entirely on synchronous clocking. Input overvoltage tolerance is achieved via integrated clamping diodes, allowing safe interfacing with 5 V signals even when powered from 3.3 V or 2.5 V rails - a critical feature for voltage-level translation in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Single D-type flip-flop, positive-edge triggered - stores one bit synchronously on rising clock edge |
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct integration into 2.5 V, 3.3 V, and 5 V logic domains |
| Propagation Delay (tpd) | 8.4 ns max at VCC = 3.3 V, CL = 15 pF - enables reliable operation up to 70 MHz in worst-case industrial temp |
| Set-up / Hold Time | 3.0 ns / +2.0 ns (D to CP) - defines minimum data stability window before and after clock edge |
| Input Voltage Tolerance | Inputs rated to 5.5 V independent of VCC - permits use as level translator without external components |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood, industrial control, and extended-temperature embedded applications |
| Output Drive Strength | ±8 mA at VCC = 4.5 V - sufficient to drive standard CMOS loads and moderate PCB trace capacitance |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, 1.1 mm × 2.2 mm footprint, 1.0 mm height. Pin 1 index located below marking code in lower-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - D | Data input | Asynchronous data source latched on next valid clock edge; overvoltage tolerant to 5.5 V |
| 2 - CP | Clock pulse input | Positive-edge sensitive trigger; requires clean rise time ≤ 20 ns/V at 5 V for guaranteed timing |
| 3 - GND | Ground reference | 0 V return path for all internal circuitry and I/O; must be low-impedance for noise immunity |
| 4 - Q | Data output | Inverted complementary output not provided; Q reflects stored D value after clock edge |
| 5 - VCC | Supply voltage | Primary power rail; decoupling capacitor (100 nF) recommended within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (2.0–5.5 V) | Eliminates need for level shifters when interfacing between 2.5 V, 3.3 V, and 5 V subsystems |
| Overvoltage-tolerant inputs | Enables direct connection of 5 V signals to 3.3 V-powered logic without external protection |
| Symmetrical output impedance | Ensures matched rise/fall times and reduces signal distortion on routed traces |
| High noise immunity | CMOS input threshold scaling with VCC provides consistent noise margin across supply voltages |
| Latch-up immunity >100 mA | Guarantees robustness against transient current injection per JESD78 Class II Level A |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Synchronizing asynchronous sensor interrupts (e.g., door open/close) into a 3.3 V microcontroller clock domain. IC Role / Device Role / Timing Role: Edge-triggered data capture element converting noisy, slow-switching mechanical inputs into clean, clock-aligned digital signals. Use Value: Prevents metastability in MCU GPIO registers by enforcing strict set-up/hold timing and providing deterministic sampling on clock edge. |
Use Scenario: Debouncing and latching switch inputs (e.g., headlight toggle) in 5 V automotive subsystems interfaced to 3.3 V CAN controller. IC Role / Device Role / Timing Role: Voltage-translating D flip-flop isolating legacy 5 V switch networks from modern low-voltage MCUs. Use Value: Eliminates external resistor-divider or dedicated level-shifter ICs while maintaining full industrial temperature operation. |
| Medical Infusion Pump Control | Industrial Motor Drive Feedback |
Use Scenario: Capturing emergency stop button state into safety-critical control logic running at 2.5 V. IC Role / Device Role / Timing Role: Single-bit synchronous register ensuring fail-safe state capture aligned to system clock for watchdog and lockout sequencing. Use Value: Provides predictable, glitch-free state transfer with verified -40 °C to +125 °C performance and latch-up immunity >100 mA. |
Use Scenario: Latching encoder quadrature phase signals before feeding to FPGA-based motion controller. IC Role / Device Role / Timing Role: High-speed data synchronizer matching encoder timing to FPGA clock domain while suppressing noise-induced false edges. Use Value: Achieves 70 MHz maximum frequency with 3.0 ns set-up time, reducing jitter accumulation in closed-loop position tracking. |
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 | TTL-compatible inputs (VIH = 2.0 V min); identical timing, package, and supply range | Required when driving from legacy 5 V TTL logic; not suitable for pure CMOS 2.5 V sources | Select when interfacing with 5 V microcontrollers or legacy logic families requiring TTL thresholds |
| SN74LVC1G79DBVR | Lower VCC range (1.65–5.5 V); 3.7 ns tpd at 3.3 V; different pinout (SOT-23-5) | Supports 1.8 V logic; incompatible pin mapping prevents drop-in replacement | Choose for ultra-low-voltage designs or where faster propagation is prioritized over pin compatibility |
Compared with 74AHC1G79GW,125, the 74AHCT1G79GW,125 offers TTL input thresholds essential for 5 V legacy systems, while SN74LVC1G79DBVR extends voltage support downward but requires PCB redesign due to SOT-23-5 footprint and altered pin assignment.
Availability
74AHC1G79GW,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump control, and industrial motor drive feedback requiring stable component supply across extended temperature ranges.
Supply support for 74AHC1G79GW,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 high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74AHC series delivers advanced high-speed CMOS logic optimized for low-power, wide-supply operation and robust mixed-signal interfacing - designed specifically for space-constrained, thermally demanding embedded control applications.
FAQ
What is the maximum clock frequency supported by 74AHC1G79GW,125?
The device supports up to 90 MHz at 25 °C and 70 MHz across the full -40 °C to +125 °C operating range, as specified in Table 8 of the datasheet. This maximum frequency assumes proper load conditions (CL ≤ 50 pF), clean clock edges, and adherence to setup/hold timing margins.
Can 74AHC1G79GW,125 interface a 5 V sensor output with a 3.3 V microcontroller?
Yes - its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC level, allowing direct connection of 5 V sensor outputs to the D or CP pins while powered from 3.3 V. No external level-shifting components are required.
Does 74AHC1G79GW,125 have an asynchronous reset or preset function?
No - it is a basic positive-edge-triggered D flip-flop with no asynchronous control inputs. The only functional inputs are D (data) and CP (clock); Q output updates solely on LOW-to-HIGH transitions of CP, provided setup and hold times are met.
What decoupling capacitance is recommended for stable operation?
A 100 nF ceramic capacitor placed within 5 mm of the VCC pin (Pin 5) and GND (Pin 3) is recommended per Nexperia's layout guidelines. For systems with high-frequency switching or noisy environments, adding a 1 μF bulk capacitor nearby further improves supply stability.
74AHC1G79GW,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- 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:
- 2V ~ 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:
- 5-TSSOP
74AHC1G79GW,125 FAQ
1.How can I place an order for 74AHC1G79GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G79GW,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 74AHC1G79GW,125 reliable?
The price and inventory of 74AHC1G79GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G79GW,125 is usually 5 days.
3.What payment methods are accepted for 74AHC1G79GW,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G79GW,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G79GW,125?
74AHC1G79GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G79GW,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 74AHC1G79GW,125?
For technical support, including 74AHC1G79GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G79GW,125 requirements.
6.How does Aetrix verify that 74AHC1G79GW,125 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G79GW,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 74AHC1G79GW,125 meets industry standards.
7.What is the process for return or replacement of 74AHC1G79GW,125?
All 74AHC1G79GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G79GW,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 74AHC1G79GW,125 part is unused and in its original packaging.
Return procedure for 74AHC1G79GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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