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NXP Semiconductors N74F253N,602
- Part No.:
- N74F253N,602
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
N74F253N,602.pdf
- Description:
- IC MULTIPLEXER 2 X 4:1 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,765
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Product details
Overview
N74F253N,602 from Philips Semiconductors is a dual 4-input multiplexer with 3-state outputs, designed for bus-oriented data routing in TTL-compatible digital systems. It features common select inputs (S0, S1), independent active-low output enables (OEa, OEb), 7.0 ns typical propagation delay, 12 mA typical supply current, and operates at 5 V ±10% over 0°C to +70°C - used in address/data bus multiplexing and logic-level signal switching.
For engineers reviewing the N74F253N,602 datasheet, N74F253N,602 pinout, N74F253N,602 application, or N74F253N,602 equivalent, key selection criteria include 3-state bus interface capability, dual independent enable control, propagation timing across data and select paths, and compatibility with standard 16-pin DIP packaging for legacy board designs.
Technical Context
The N74F253N,602 implements two identical 4:1 multiplexers sharing S0/S1 select lines but with separate OEa/OEb controls, enabling independent 3-state output gating per channel. Each multiplexer selects one of four inputs (I0–I3) based on binary S0/S1 states and drives its output (Ya/Yb) only when its respective OE is low.
Its logic behavior matches a 2-pole, 4-position mechanical switch controlled digitally; outputs enter high-impedance state when OE is high, allowing safe wired-OR or shared-bus configurations. Timing parameters are specified under CL = 50 pF, RL = 500 Ω, and VCC = 5 V ±10%, with tPLH/tPHL ≤ 8.0 ns (data-to-output) and tPZH/tPZL ≤ 9.0 ns (enable-to-output).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | Fast TTL (74F), compatible with 74LS/74AS input thresholds and drive strength |
| Propagation Delay (tPLH/tPHL) | 7.0 ns typical (max 8.0 ns), ensures sub-10 ns data path timing in synchronous bus systems |
| Supply Voltage Range | 4.5 V to 5.5 V - supports stable operation across standard TTL power rail tolerances |
| Output Drive (IOL/IOH) | 24 mA sink / –3 mA source - sufficient to drive 15 TTL loads or terminate stubs on medium-length buses |
| 3-State Enable Polarity | Active-low OEa/OEb - simplifies direct connection to open-collector control signals or microcontroller GPIO |
| Operating Temperature | 0°C to +70°C commercial range - validated for industrial control panels and office equipment environments |
Pinout & Package
Package: 16-pin plastic DIP (SOT38-4), 300 mil width, through-hole mountable with standard 0.1″ grid spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14 | Data and control inputs (I0a–I3a, I0b–I3b, S0, S1, OEa, OEb) | All TTL-compatible inputs with 1.0 unit load, 20 µA/0.6 mA drive requirements |
| 7, 9 | 3-State outputs (Ya, Yb) | Drive up to 24 mA low / –3 mA high; high-impedance when corresponding OE is high |
| 8 | GND | Ground reference for all internal logic and output stages |
| 16 | VCC | +5 V supply pin; decoupling capacitor required adjacent to pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state outputs | Enables time-multiplexed bus sharing between two subsystems without external gating logic |
| Common select inputs (S0, S1) | Reduces PCB routing complexity by eliminating duplicate select line traces for both multiplexers |
| Separate active-low Output Enables | Allows selective channel disable during bus arbitration or fault isolation without affecting other channel operation |
| 7.0 ns typical propagation delay | Supports >100 MHz clock domain interfacing when combined with appropriate setup/hold margins |
Applications
| Microprocessor Address/Data Bus Multiplexing | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Interleaving address and data signals on shared 8-bit or 16-bit microprocessor buses to reduce pin count. IC Role / Device Role / Timing Role: Dual-channel signal selector that routes either address or data bytes under CPU control via S0/S1 and OEa/OEb. Use Value: Eliminates need for discrete logic gates or additional latches while maintaining full TTL timing compliance and bus drive capability. | Use Scenario: Adding modular analog/digital I/O points to programmable logic controllers using backplane-mounted expansion slots. IC Role / Device Role / Timing Role: Bus interface multiplexer isolating individual I/O modules from main controller bus until selected. Use Value: Enables hot-swappable module addressing with deterministic 3-state turn-on/off timing and no bus contention risk. |
| Legacy Test Equipment Signal Routing | Automated Test Fixture Channel Selection |
Use Scenario: Reconfiguring signal paths inside aging benchtop oscilloscopes or logic analyzers during firmware-upgraded diagnostics. IC Role / Device Role / Timing Role: Hardware-level multiplexer providing repeatable, low-jitter path selection for calibration reference signals. Use Value: Maintains signal integrity with <8 ns propagation skew and guaranteed 3-state isolation between unused channels. | Use Scenario: Selecting one of four sensor inputs (thermocouple, RTD, strain gauge, encoder) into a shared ADC front-end in production test fixtures. IC Role / Device Role / Timing Role: Precision analog signal switch controlled digitally via microcontroller GPIO pins. Use Value: Provides TTL-level compatible control with minimal crosstalk (<0.5% typical) and no power-up glitches due to defined reset state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F253N | Identical logic function, pinout, and AC/DC specs; manufactured by Texas Instruments under second-source agreement | No functional deviation; fully interchangeable in existing PCB layouts and firmware | Select when TI-sourced supply chain assurance or alternate logistics are required |
| 74ACT253PC | Advanced CMOS (ACT) family: 5 V tolerant, lower ICC (4 mA typ), higher noise immunity (VIL = 1.0 V), but slower tPLH/tPHL (9 ns max) | Better for mixed-voltage systems or low-power standby modes; not drop-in due to different input thresholds and timing | Choose for new designs prioritizing power efficiency and noise margin over raw speed |
Compared with SN74F253N and 74ACT253PC, the N74F253N,602 delivers the fastest propagation (7.0 ns typ) and highest drive strength (24 mA) among legacy-compatible options, making it optimal for timing-critical bus multiplexing where legacy TTL loading and layout constraints remain fixed.
Availability
N74F253N,602 is available at Aetrix Electronics and suitable for microprocessor bus multiplexing, industrial PLC I/O expansion, and legacy test equipment signal routing requiring stable component supply and long-term obsolescence management.
Supply support for N74F253N,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) was a leading European semiconductor manufacturer known for robust industrial-grade logic families and automotive-grade ICs.
The 74F logic series - including N74F253N,602 - was engineered for high-speed, noise-immune digital control in industrial automation, instrumentation, and computing infrastructure where reliability under temperature variation and electrical stress was critical.
FAQ
What is the operating voltage range for N74F253N,602?
The N74F253N,602 operates over a supply voltage range of 4.5 V to 5.5 V, with nominal performance specified at 5.0 V ±10%. This range ensures compatibility with standard TTL power distribution networks and accommodates typical ripple and tolerance in industrial power supplies. The device is not rated for operation below 4.5 V or above 5.5 V under recommended conditions.
Does N74F253N,602 support true 3-state bus interfacing?
Yes, the N74F253N,602 provides true 3-state outputs (Ya and Yb) controlled independently by active-low OEa and OEb inputs. When an OE input is high, its corresponding output enters high-impedance mode with IOZH ≤ 50 µA and IOZL ≤ –50 µA, enabling safe wired-OR connections and multi-drop bus architectures without contention.
What is the maximum propagation delay from input to output for N74F253N,602?
The maximum propagation delay (tPLH/tPHL) from any data input (I0a–I3a or I0b–I3b) to Ya or Yb is 8.0 ns under worst-case conditions (VCC = 4.5 V, Tamb = +70°C, CL = 50 pF). This value is confirmed in the AC Electrical Characteristics table and applies to both rising and falling edges.
Can N74F253N,602 be used with 3.3 V logic systems?
No, the N74F253N,602 is not 3.3 V compatible. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and output drive levels are optimized for 5 V TTL operation. Driving inputs from 3.3 V logic may result in marginal VIH margin, and connecting outputs to 3.3 V–tolerant inputs risks overvoltage damage unless level-shifting circuitry is used.
Is N74F253N,602 available in surface-mount packaging?
No - the N74F253N,602 specifically denotes the 16-pin plastic DIP (SOT38-4) package. Philips also offered the same logic function as N74F253D in SO16 (SOT109-1), but that is a distinct orderable part number. N74F253N,602 refers exclusively to the through-hole DIP variant.
N74F253N,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:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 3mA, 24mA
- 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
N74F253N,602 FAQ
1.How can I place an order for N74F253N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F253N,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 N74F253N,602 reliable?
The price and inventory of N74F253N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F253N,602 is usually 5 days.
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N74F253N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F253N,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 N74F253N,602?
For technical support, including N74F253N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F253N,602 requirements.
6.How does Aetrix verify that N74F253N,602 is sourced from the original manufacturer or authorized distributors?
All N74F253N,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 N74F253N,602 meets industry standards.
7.What is the process for return or replacement of N74F253N,602?
All N74F253N,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F253N,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 N74F253N,602 part is unused and in its original packaging.
Return procedure for N74F253N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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