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NXP Semiconductors N74F399N,602
- Part No.:
- N74F399N,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F399N,602.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,614
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Product details
Overview
N74F399N,602 from Philips Semiconductors is a high-speed quad 2-port register IC with fully positive edge-triggered D-type flip-flops, 120 MHz maximum clock frequency, 22 mA typical supply current, and dual 4-bit data source selection via common S input - used in synchronous data routing and register staging in TTL-compatible digital control systems.
For engineers reviewing the N74F399N,602 datasheet, N74F399N,602 pinout, N74F399N,602 application, or N74F399N,602 equivalent, key selection criteria include setup/hold timing (ts = 3 ns / th = 1 ns for data, ts = 8.5 ns for select), output drive capability (20 mA sink), and commercial-grade operation (0°C to +70°C) in 16-pin plastic DIP packaging.
Technical Context
The N74F399N,602 implements four independent 2:1 multiplexer stages feeding edge-triggered D flip-flops, all synchronized to a single rising-edge clock (CP). Its logic function is defined by a deterministic truth table where S selects between I0n and I1n inputs prior to latching on CP's Low-to-High transition.
It operates under strict DC conditions: VCC = 4.5–5.5 V, VIH ≥ 2.0 V, VIL ≤ 0.8 V, and supports fan-out of up to 50 FAST loads on outputs. AC performance is characterized at CL = 50 pF and RL = 500 Ω, with tPLH/tPHL ≤ 9.0 ns and minimum CP pulse width of 4.0 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Clock Frequency | 120 MHz typical - enables high-throughput data staging in fast control loops |
| Supply Current (ICC) | 22 mA typical at VCC = 5 V - defines power budget for multi-register logic blocks |
| Output Drive (IOL) | 20 mA sink per Qn - sufficient to directly drive TTL inputs or small LED indicators |
| Setup Time (ts) | 3.0 ns for data, 8.5 ns for S input - constrains minimum data path delay before CP edge |
| Propagation Delay | ≤ 9.0 ns (CP to Qn) - determines critical path latency in pipelined register chains |
| Operating Temperature | 0°C to +70°C - validated for commercial-grade industrial control and instrumentation |
| VCC Range | 4.5 V to 5.5 V - compatible with standard 5 V ±10% TTL power rails |
Pinout & Package
Package: 16-pin plastic DIP (SOT38-4), 300 mil width, through-hole mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 4, 6, 11, 12, 13, 14 | Data inputs I0a–I0d, I1a–I1d | Two parallel 4-bit data sources; stable ≥3 ns before CP for reliable capture |
| 2 | CP (Clock) | Rising-edge trigger; initiates synchronous transfer of selected 4-bit word to outputs |
| 7, 9, 10, 15 | Qa–Qd (True outputs) | Registered 4-bit output bus; each drives up to 50 FAST loads or 20 mA sink |
| 8 | GND | Ground reference for all logic and power terminals |
| 16 | VCC | +5 V supply rail; bypass capacitor required near pin for noise immunity |
| 5 | S (Select) | Common control for all four 2:1 muxes; must be stable ≥8.5 ns before CP edge |
Key Features
| Feature | Design Value |
|---|---|
| Quad 2-port architecture | Enables simultaneous selection and latching of two independent 4-bit words without inter-stage skew |
| Fully edge-triggered operation | Eliminates metastability risk from asynchronous data changes during clock transition window |
| FAST-family compatibility | Meets 1.0/1.0 unit load input specs and 50/33 FAST load output fan-out for mixed-logic interfacing |
| Commercial temperature range | Validated operation from 0°C to +70°C ensures reliability in non-automotive embedded systems |
Applications
| Industrial PLC I/O Staging | Digital Test Equipment Data Capture |
|---|---|
Use Scenario: Capturing sensor or actuator status from dual redundant input buses before forwarding to CPU interface. IC Role / Device Role / Timing Role: Synchronous 4-bit register staging element with selectable source; acts as timing-isolated interface between field I/O and controller bus. Use Value: Enables glitch-free sampling of time-critical signals using external S control, with predictable 9 ns propagation delay and 3 ns setup margin. | Use Scenario: Latching parallel stimulus data from two test pattern generators into a shared acquisition buffer. IC Role / Device Role / Timing Role: Dual-source data selector and edge-aligned register; provides deterministic sampling window aligned to system clock. Use Value: Supports 120 MHz test clock rates while maintaining 1 ns hold margin, reducing timing uncertainty in high-speed ATE systems. |
| Legacy Bus Arbitration Logic | Video Signal Pipeline Register |
Use Scenario: Managing data flow between two competing peripheral controllers sharing a common memory-mapped bus. IC Role / Device Role / Timing Role: Source-selectable register acting as arbitration latch; resolves contention by selecting active controller's data on CP edge. Use Value: Provides deterministic 4-bit handshaking with no internal combinatorial feedback, avoiding race conditions in legacy bus designs. | Use Scenario: Inserting precise clock-domain alignment registers in parallel RGB video data paths to meet display controller timing. IC Role / Device Role / Timing Role: Synchronous 4-bit stage in pixel data pipeline; aligns multiple bit lanes to eliminate skew-induced color artifacts. Use Value: Delivers matched 9 ns propagation across all Qa–Qd outputs, ensuring sub-pixel timing integrity in analog video interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-port register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F399N | Same logic function, identical pinout, TI-manufactured; fMAX = 100 MHz (min), ICC = 24 mA typical | Lower guaranteed max frequency and higher supply current; suitable where 100 MHz margin suffices | Select when sourcing from TI-distributed channels or requiring TI-specific qualification documentation |
| 74ACT399PC | Advanced CMOS version; VCC = 4.5–5.5 V, fMAX = 110 MHz, IOL = 24 mA, lower ICC = 4 µA static | Higher noise immunity (VIH = 3.5 V), but requires stricter input voltage thresholds and lacks FAST-family load compatibility | Select for low-power, noise-sensitive environments where TTL-level interfacing is not required |
Compared with SN74F399N and 74ACT399PC, the N74F399N,602 delivers the highest guaranteed speed (120 MHz typ) and native FAST-load compatibility, making it optimal for legacy TTL system upgrades where timing margin and interface fidelity are critical.
Availability
N74F399N,602 is available at Aetrix Electronics and suitable for industrial PLC I/O staging, digital test equipment data capture, and legacy bus arbitration requiring stable component supply and long-term obsolescence management.
Supply support for N74F399N,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
Philips Semiconductors (now NXP Semiconductors) is a global semiconductor innovator with leadership in logic, analog, and automotive ICs, founded in the Netherlands and historically instrumental in defining TTL and FAST logic families.
The 74F logic family - including the N74F399N,602 - was engineered for high-speed commercial digital systems requiring robust noise margins, predictable timing, and direct compatibility with legacy 5 V TTL infrastructure.
FAQ
What is the primary function of the N74F399N,602?
The N74F399N,602 is a quad 2-port register that selects one of two 4-bit data sources using a common S input and latches the selected word synchronously on the rising edge of CP. It combines four 2:1 multiplexers with edge-triggered D flip-flops in a single 16-pin DIP package, enabling deterministic data routing in high-speed digital control logic.
Does the N74F399N,602 support mixed-voltage interfacing?
No - the N74F399N,602 is designed exclusively for 5 V ±10% operation (VCC = 4.5–5.5 V) and TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V). It does not support 3.3 V or other voltage domains, and its outputs are not 5 V tolerant when driven by lower-voltage sources.
What are the critical timing constraints for reliable operation of the N74F399N,602?
For reliable operation, the N74F399N,602 requires I0n/I1n data to be stable ≥3.0 ns before CP's rising edge (ts), held ≥1.0 ns after (th), and S input to be stable ≥8.5 ns before CP with zero hold time. Violating these violates the AC setup requirements and risks metastable or incorrect output states.
Can the N74F399N,602 drive standard TTL loads directly?
Yes - the N74F399N,602 outputs deliver 20 mA sink current (IOL) and –1 mA source current (IOH), meeting standard TTL fan-out requirements. Each Qn output supports up to 50 FAST unit loads (defined as 0.6 mA low / 20 µA high), enabling direct connection to multiple 74LS or 74F inputs without buffering.
Is the N74F399N,602 pin-compatible with other 74F399 variants?
Yes - the N74F399N,602 shares identical pinout and logic function with all 74F399 variants in 16-pin DIP (e.g., SN74F399N), including matching terminal assignments for I0a–I0d, I1a–I1d, S, CP, Qa–Qd, VCC, and GND. Mechanical and electrical pin compatibility is confirmed per SOT38-4 package drawing.
N74F399N,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Multiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 1mA, 20mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
N74F399N,602 FAQ
1.How can I place an order for N74F399N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F399N,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 N74F399N,602 reliable?
The price and inventory of N74F399N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F399N,602 is usually 5 days.
3.What payment methods are accepted for N74F399N,602?
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4.How is shipping managed for N74F399N,602?
N74F399N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F399N,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 N74F399N,602?
For technical support, including N74F399N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F399N,602 requirements.
6.How does Aetrix verify that N74F399N,602 is sourced from the original manufacturer or authorized distributors?
All N74F399N,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 N74F399N,602 meets industry standards.
7.What is the process for return or replacement of N74F399N,602?
All N74F399N,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F399N,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 N74F399N,602 part is unused and in its original packaging.
Return procedure for N74F399N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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