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Nexperia USA Inc. 74AHCT1G79GW,125
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- Part No.:
- 74AHCT1G79GW,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHCT1G79GW,125.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,212
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Product details
Overview
74AHCT1G79GW,125 from Nexperia is a single positive-edge-triggered D-type flip-flop in TSSOP5 (SOT353-1) package, operating from 4.5 V to 5.5 V supply, with TTL-compatible inputs, 3.5 ns typical propagation delay at 5 V/15 pF, and guaranteed operation from –40 °C to +125 °C. It functions as a synchronous data latch in digital control logic, clock domain synchronization, and signal edge registration circuits.
For engineers reviewing the 74AHCT1G79GW,125 datasheet, 74AHCT1G79GW,125 pinout, 74AHCT1G79GW,125 application, or 74AHCT1G79GW,125 equivalent, key selection criteria include input voltage compatibility (TTL-level), propagation delay vs. load capacitance, set-up/hold timing margins, and industrial temperature range compliance.
Technical Context
This device implements a basic synchronous edge-triggered storage element with non-inverting Q output and no reset/set control. Its TTL-input threshold (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) ensures direct interfacing with legacy 5 V TTL logic families without level translation.
Internal CMOS circuitry delivers symmetrical output drive (IOH/IOZ = –8 mA / IOL = 8 mA at VCC = 4.5 V), balanced propagation delays (tPLH ≈ tPHL), and overvoltage-tolerant inputs rated to 5.5 V - enabling safe use in mixed-voltage systems where input signals may exceed VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Single D-type flip-flop, positive-edge triggered - stores D-input state on rising CP edge |
| Supply Voltage Range | 4.5 V to 5.5 V - supports standard 5 V digital systems with margin for rail tolerance |
| Propagation Delay | 3.5 ns (typ) at VCC = 5.0 V, CL = 15 pF - enables >70 MHz operation in high-speed control paths |
| Set-up Time | 3.0 ns (min) - defines minimum D-stability window before CP rising edge for reliable capture |
| Hold Time | +2.0 ns (min) - requires D to remain stable for ≥2 ns after CP rising edge |
| Input Compatibility | TTL-level (VIH ≥ 2.0 V, VIL ≤ 0.8 V) - interoperable with 74LS, 74F, and other 5 V TTL outputs |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood, industrial PLC, and motor control environments |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, exposed pad not present, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D | Data input - sampled on LOW-to-HIGH clock transition; overvoltage tolerant to 5.5 V |
| 2 | CP | Clock pulse input - rising-edge sensitive; TTL-compatible threshold |
| 3 | GND | Ground reference - return path for all internal currents and I/O |
| 4 | Q | Non-inverting data output - drives CMOS/TTL loads up to ±8 mA |
| 5 | VCC | Positive supply - powers internal logic; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstand up to 5.5 V regardless of VCC - eliminates need for external clamping in mixed-rail systems |
| Symmetrical output drive | IOH = –8 mA / IOL = 8 mA at VCC = 4.5 V - ensures matched rise/fall times into capacitive loads |
| High noise immunity | Typical VIH–VIL margin >1.2 V at 5 V - rejects transient coupling in noisy industrial PCBs |
| Low dynamic power | CPD = 16 pF - limits switching current in battery-sensitive or thermally constrained layouts |
| Extended temperature range | Specified from –40 °C to +125 °C - validated for automotive under-hood and industrial motor drive use |
Applications
| Industrial Motor Control | Programmable Logic Interface |
|---|---|
Use Scenario: Capturing encoder quadrature signals in servo drive feedback loops. IC Role / Device Role / Timing Role: Synchronizes asynchronous A/B channel edges to system clock domain while preserving edge sequence integrity. Use Value: 3.5 ns propagation delay and 2 ns hold time ensure clean sampling of fast encoder transitions up to 10 MHz without metastability. | Use Scenario: Glue logic between FPGA I/O banks and legacy 5 V peripheral buses. IC Role / Device Role / Timing Role: Level-shifting and timing alignment for control strobes and status flags. Use Value: TTL-compatible inputs accept 5 V FPGA output voltages directly; overvoltage tolerance prevents damage during hot-swap or power sequencing. |
| Automotive Body Controller | Test Equipment Signal Conditioning |
Use Scenario: Debouncing mechanical switch inputs in door module ECUs. IC Role / Device Role / Timing Role: Positive-edge register capturing filtered switch states synchronized to microcontroller clock. Use Value: Guaranteed –40 °C to +125 °C operation meets AEC-Q100 ambient requirements; low ICC (≤40 μA) minimizes standby current draw. | Use Scenario: Capturing and retiming high-speed digital stimulus signals in automated test fixtures. IC Role / Device Role / Timing Role: Input synchronizer that eliminates setup/hold violations before ADC sampling or FPGA capture. Use Value: Precise 3.0 ns set-up and +2.0 ns hold time enable robust interface with jitter-prone signal sources without external delay tuning. |
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 |
|---|---|---|---|
| SN74LVC1G79DBVR | CMOS input thresholds (VIH = 70% VCC), 1.65–5.5 V supply, 3.8 ns tpd at 3.3 V/15 pF | Better suited for 3.3 V systems; lacks TTL-level compatibility | Select when interfacing with modern 3.3 V LVC logic and lower supply rails are required |
| 74AHC1G79GW,125 | CMOS input thresholds (VIH = 3.85 V min at 5.5 V), same package and pinout, 3.5 ns tpd at 5 V/15 pF | Higher noise margin but incompatible with TTL outputs without pull-ups | Select when only CMOS logic sources are present and maximum noise immunity is prioritized |
Compared with SN74LVC1G79DBVR and 74AHC1G79GW,125, the 74AHCT1G79GW,125 uniquely bridges legacy 5 V TTL and modern CMOS domains via native TTL input thresholds - eliminating external resistors or translators in mixed-technology designs.
Availability
74AHCT1G79GW,125 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, programmable logic interfaces, and test equipment requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT1G79GW,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, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AHCT series targets robust, drop-in replacements for legacy TTL logic in industrial and automotive applications - emphasizing wide temperature range, input compatibility, and long-term supply stability.
FAQ
What is the maximum clock frequency supported by 74AHCT1G79GW,125?
The device supports up to 90 MHz at 25 °C and 70 MHz across the full –40 °C to +125 °C range, as specified in Table 8. This is determined by the minimum clock pulse width (3.0 ns HIGH/LOW) and propagation delay performance under recommended operating conditions with 15 pF or 50 pF load capacitance.
Can 74AHCT1G79GW,125 operate with a 3.3 V supply?
No - the 74AHCT variant is specified only for 4.5 V to 5.5 V operation per Table 6. At 3.3 V, input thresholds fall outside TTL specification (VIH < 2.0 V), risking unreliable logic recognition. For 3.3 V systems, consider SN74LVC1G79DBVR or 74AHC1G79GW,125 instead.
Does 74AHCT1G79GW,125 include asynchronous reset or preset functionality?
No - this is a basic single D-type flip-flop with only D, CP, Q, VCC, and GND terminals. It has no asynchronous control inputs (e.g., CLR, PRE). The function table in Section 7 confirms operation depends solely on D and rising CP edge; no reset or set behavior is defined.
Is the TSSOP5 package (SOT353-1) lead-free and RoHS compliant?
Yes - Nexperia's 74AHCT1G79GW,125 is manufactured in full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The SOT353-1 package uses lead-free matte tin terminal finish and meets JEDEC J-STD-020 moisture sensitivity level MSL3.
74AHCT1G79GW,125 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74AHCT1G79GW,125 FAQ
1.How can I place an order for 74AHCT1G79GW,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G79GW,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 74AHCT1G79GW,125 reliable?
The price and inventory of 74AHCT1G79GW,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G79GW,125 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G79GW,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G79GW,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G79GW,125?
74AHCT1G79GW,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G79GW,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 74AHCT1G79GW,125?
For technical support, including 74AHCT1G79GW,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G79GW,125 requirements.
6.How does Aetrix verify that 74AHCT1G79GW,125 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G79GW,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 74AHCT1G79GW,125 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G79GW,125?
All 74AHCT1G79GW,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G79GW,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 74AHCT1G79GW,125 part is unused and in its original packaging.
Return procedure for 74AHCT1G79GW,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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