NXP Semiconductors N74F109N,602
- Part No.:
- N74F109N,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F109N,602.pdf
- Description:
- IC FF JK TYPE DUAL 1BIT 16DIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
N74F109N,602 from Nexperia is a dual positive edge-triggered J-K flip-flop in 16-pin plastic DIP (SOT38-4), operating at 5V supply with 125MHz max clock frequency, 3.8ns typical CP-to-Q propagation delay, and –40°C to +85°C industrial temperature range. It provides asynchronous set/reset, true/complementary outputs, and supports D-type operation via J–K tie.
For engineers reviewing the N74F109N,602 datasheet, N74F109N,602 pinout, N74F109N,602 application, or N74F109N,602 equivalent, key selection criteria include edge-triggered JK functionality, industrial-grade thermal performance, TTL-compatible input/output levels, and discrete logic-level timing margins for synchronous state machine design.
Technical Context
The N74F109N,602 implements two independent JK flip-flops sharing no internal coupling; each has dedicated J, K, CP, SD, RD, Q, and Q̅ terminals. Clock triggering responds to the low-to-high transition between 0.8V and 2.0V, requiring setup time of 3.0ns and hold time of 1.0ns for J/K inputs.
Asynchronous SD and RD are active-low, overriding clock and data inputs with 3.2ns typical propagation delay to output. Output drive capability is –1mA (IOH) and 20mA (IOL), supporting fan-out of up to 50 FAST unit loads on Q/Q̅ outputs under defined load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max clock frequency | 125MHz - enables synchronous logic operation up to 8ns minimum clock period in industrial temperature range |
| CP-to-Q propagation delay | 3.8ns (typ) - defines minimum combinational path delay before next clock edge in pipeline stages |
| Supply voltage range | 4.5V to 5.5V - ensures compatibility with standard TTL power rails and noise margin compliance |
| Operating temperature | –40°C to +85°C - qualifies for industrial control, motor drives, and factory automation environments |
| Input loading (J/K/CP) | 1.0 FAST unit load - allows direct interfacing with 74F-series drivers without external buffering |
| Output drive (Q/Q̅) | 20mA sink / –1mA source - supports driving multiple 74F inputs or small LED indicators directly |
| Setup/hold time | 3.0ns / 1.0ns - constrains maximum data path delay between preceding logic and flip-flop input |
Pinout & Package
Package: 16-pin plastic dual in-line package (DIP), SOT38-4, 300 mil body width, through-hole mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | J0, J1 | Data set enable input for Flip-Flop 0/1; high = prepare to set on next clock edge |
| 2, 14 | K0, K1 | Data reset enable input for Flip-Flop 0/1; high = prepare to reset on next clock edge |
| 3, 13 | CP0, CP1 | Positive edge-triggered clock input for Flip-Flop 0/1; transition 0.8V→2.0V initiates sampling |
| 4, 12 | SD0, SD1 | Asynchronous set (active low); forces Q = H, Q̅ = L independent of clock or J/K state |
| 5, 11 | RD0, RD1 | Asynchronous reset (active low); forces Q = L, Q̅ = H independent of clock or J/K state |
| 6, 10 | Q0, Q1 | True output of Flip-Flop 0/1; reflects stored state after clock edge or async control |
| 7, 9 | Q̅0, Q̅1 | Complementary output of Flip-Flop 0/1; always inverse of corresponding Q pin |
| 8 | GND | Ground reference for all internal circuitry and I/O signaling |
| 16 | VCC | +5V supply rail; powers internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent JK flip-flops | Enables compact implementation of two-bit synchronous counters or shift register stages without inter-chip routing |
| Asynchronous set/reset per flip-flop | Allows deterministic initialization or fault recovery without waiting for clock edges or affecting other channels |
| TTL-compatible input thresholds | VIL = 0.8V, VIH = 2.0V ensures robust interfacing with legacy 74LS/74F logic families |
| Edge-triggered clock with defined transition window | Reliable sampling only when CP rises through 0.8–2.0V, rejecting slow or noisy edges outside this band |
| Configurable as D flip-flop | J–K tied together permits use as single-input storage element, reducing external gate count |
Applications
| Industrial PLC Counter Module | Legacy Bus Interface Synchronizer |
|---|---|
Use Scenario: Counting encoder pulses in motor feedback loops within programmable logic controllers. IC Role / Device Role / Timing Role: Dual JK flip-flop acts as 2-bit synchronous counter stage with reset-on-limit capability. Use Value: 125MHz fMAX and 3.8ns tPLH support real-time counting at >10MHz pulse rates while maintaining deterministic state transitions across –40°C to +85°C. | Use Scenario: Synchronizing asynchronous status signals from legacy parallel buses into a synchronous microcontroller domain. IC Role / Device Role / Timing Role: Edge-triggered storage element isolates metastability between clock domains using SD/RD for forced alignment. Use Value: Asynchronous SD/RD pins allow immediate assertion of known states during bus arbitration, eliminating race conditions during handshaking. |
| Digital Test Equipment Pattern Generator | Automotive Body Control Logic |
Use Scenario: Generating precise multi-phase stimulus waveforms for IC functional testing. IC Role / Device Role / Timing Role: Configured as toggle or presettable flip-flop to produce repeating 2-bit test sequences (e.g., 00→01→10→11). Use Value: Guaranteed 3.0ns setup time and 1.0ns hold time enable reliable pattern generation at 100MHz+ clock rates with minimal skew. | Use Scenario: Implementing window-lift anti-pinch logic state machines in automotive door modules. IC Role / Device Role / Timing Role: Stores actuator direction and position flags with fail-safe reset via RD triggered by current-sense fault detection. Use Value: Industrial temperature rating and 20mA output drive allow direct interface with relay drivers and fault-reporting LEDs without additional buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual JK flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F109N | Same pinout, identical AC/DC specs, Texas Instruments-branded 74F-family variant | No difference in logic behavior or timing; TI's documentation uses different test condition notation | Select SN74F109N if sourcing from TI-authorized channels or requiring TI-specific qualification reports |
| 74ACT109PC | Higher VCC range (4.5–5.5V same), but ACT family: 3.3V-tolerant inputs, 100MHz fMAX, lower ICC (8mA) | Lower power and improved noise immunity, but reduced max frequency limits synchronous speed-critical designs | Select 74ACT109PC where power efficiency and input voltage flexibility outweigh need for 125MHz operation |
Compared with SN74F109N and 74ACT109PC, the N74F109N,602 delivers highest clock frequency among industrial-grade dual JK flip-flops in DIP packaging, with verified 125MHz operation across full temperature range and direct drop-in compatibility with legacy 74F PCB layouts.
Availability
N74F109N,602 is available at Aetrix Electronics and suitable for industrial PLC counter modules, legacy bus interface synchronizers, digital test equipment pattern generators, and automotive body control logic requiring stable component supply over extended lifecycle.
Supply support for N74F109N,602 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP's Standard Products division in 2017 and focused on automotive, industrial, computing, and consumer markets.
The 74F logic family-including N74F109N,602-is designed for high-speed TTL-compatible digital systems requiring robust performance across industrial temperature ranges and long-term supply stability.
FAQ
What is the maximum operating frequency of the N74F109N,602?
The N74F109N,602 has a maximum clock frequency of 125MHz under industrial conditions (VCC = 5.0V ±10%, Tamb = –40°C to +85°C, CL = 50pF). This value is guaranteed in the AC Electrical Characteristics table and reflects worst-case timing across the full temperature and voltage range. The N74F109N,602 achieves this performance using optimized bipolar transistor design within the 74F family architecture.
Does the N74F109N,602 support asynchronous reset and set functions?
Yes, the N74F109N,602 provides fully asynchronous active-low set (SD0/SD1) and reset (RD0/RD1) inputs for each flip-flop. These inputs override clock and data signals, forcing Q = H / Q̅ = L (set) or Q = L / Q̅ = H (reset) immediately, with 3.2ns typical propagation delay. The N74F109N,602 function table explicitly defines these modes as "Asynchronous set" and "Asynchronous reset" independent of clock state.
Can the N74F109N,602 be used as a D-type flip-flop?
Yes, the N74F109N,602 can be configured as a D-type flip-flop by connecting the J and K inputs of each section together. When J = K = H, the flip-flop toggles; when J = K = L, it holds; and when J = K = D, the output follows D on the next clock edge. This behavior is documented in the product specification description and confirmed by the function table entry "Load '1' (set)" and "Load '0' (reset)" under H/H/↑/h/h and H/H/↑/l/l conditions.
What package type is used for the N74F109N,602?
The N74F109N,602 uses a 16-pin plastic dual in-line package (DIP) conforming to SOT38-4 mechanical dimensions: 300 mil body width, through-hole mounting, and standard 0.1-inch pin pitch. This package is explicitly listed in the Ordering Information table under "N74F109N" and illustrated in the Pin Configuration diagram labeled "16-pin plastic DIP".
What are the input voltage thresholds for the N74F109N,602?
The N74F109N,602 specifies VIH = 2.0V (minimum high-level input voltage) and VIL = 0.8V (maximum low-level input voltage) under recommended operating conditions. These values ensure compatibility with standard TTL logic families and are validated across the full industrial temperature range. Input clamp voltage is –0.73V, and input currents remain within ±20µA (IIH) and –1.8mA (IIL) limits per the DC Electrical Characteristics table.
N74F109N,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Set(Preset) and Reset
- Type:
- JK Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 125 MHz
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 1mA, 20mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 17 mA
- Input Capacitance:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
N74F109N,602 FAQ
1.How can I place an order for N74F109N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F109N,602 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 N74F109N,602 reliable?
The price and inventory of N74F109N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F109N,602 is usually 5 days.
3.What payment methods are accepted for N74F109N,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F109N,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for N74F109N,602?
N74F109N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F109N,602 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 N74F109N,602?
For technical support, including N74F109N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F109N,602 requirements.
6.How does Aetrix verify that N74F109N,602 is sourced from the original manufacturer or authorized distributors?
All N74F109N,602 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 N74F109N,602 meets industry standards.
7.What is the process for return or replacement of N74F109N,602?
All N74F109N,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F109N,602, 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 N74F109N,602 part is unused and in its original packaging.
Return procedure for N74F109N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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