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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

NXP Semiconductors N74F27D,602

Name: N74F27D,602
Brand: NXP Semiconductors
SKU: N74F27D,602
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: N74F27D,602

Manufacturer:: NXP Semiconductors

Category:: Gates and Inverters

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: N74F27D,602.pdf

Description:: IC GATE NOR 3CH 3-INP 14SO

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Product details

Overview

N74F27D,602 from Nexperia is a triple 3-input NOR gate logic IC in SO-14 package, featuring typical propagation delay of 5 ns at V_CC = 5 V, output drive capability of ±15 mA, and operating temperature range from −40 °C to +85 °C. It performs active-low combinational logic in digital control circuits, such as address decoding and reset signal generation in industrial microcontroller peripherals.

For engineers reviewing the N74F27D,602 datasheet, N74F27D,602 pinout, N74F27D,602 application, or N74F27D,602 equivalent, key selection criteria include guaranteed high-speed switching (t_pd ≤ 7 ns max), TTL-compatible input thresholds, rail-to-rail output swing under 15 mA load, and industrial-grade thermal reliability without derating.

Technical Context

The N74F27D,602 implements three independent 3-input NOR gates using silicon-gate Schottky-clamped bipolar technology. Each gate exhibits asymmetric input loading (I_IL = −1.6 mA max, I_IH = 40 μA max) and supports fan-out of 10 to standard TTL loads.

It operates strictly within 4.5 V to 5.5 V supply range, with guaranteed noise margins: V_NIH ≥ 0.5 V and V_NIL ≥ 0.4 V at V_CC = 5 V. Output voltage levels are specified as V_OH ≥ 2.7 V (I_OH = −15 mA) and V_OL ≤ 0.5 V (I_OL = 15 mA).

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	F-series TTL - ensures compatibility with legacy 74-series systems and predictable timing behavior in mixed-logic designs.
Propagation Delay (t_pd)	5 ns typical / 7 ns max at V_CC = 5 V - enables reliable operation in 100 MHz clock-domain edge detection and synchronous state machines.
Output Drive	±15 mA - supports direct driving of multiple TTL inputs or small LEDs without external buffers.
Supply Voltage Range	4.5 V to 5.5 V - matches standard 5 V power rails and tolerates nominal ±10 % regulation variation.
Operating Temperature	−40 °C to +85 °C - certified for use in industrial control panels and factory automation equipment without thermal derating.
Input Thresholds	V_IL ≤ 0.8 V, V_IH ≥ 2.0 V - provides robust noise immunity against EMI in electrically noisy environments.

Pinout & Package

Package: SO-14 (Small Outline, 14-pin, plastic, gull-wing leads, body width 3.9 mm, pitch 1.27 mm).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	Input A/B/C of Gate 1	Three independent logic inputs accepting TTL-level signals; each draws ≤1.6 mA low, ≤40 μA high.
4	Output Y1	Active-low NOR output capable of sourcing/sinking ±15 mA while maintaining V_OH/V_OL specs.
5, 6, 7	Input A/B/C of Gate 2	Second set of three TTL-compatible inputs; electrically isolated from Gate 1 except shared V_CC/GND.
8	GND	Ground reference for all three gates; must be low-impedance to maintain noise margin and switching integrity.
9, 10, 11	Input A/B/C of Gate 3	Third independent 3-input NOR function; identical electrical characteristics to Gates 1 and 2.
12	Output Y3	Third NOR output; same drive strength and voltage compliance as Y1 and Y2.
13	Output Y2	Second NOR output; shares no internal coupling with other outputs beyond common supply rails.
14	V_CC	+5 V supply pin; requires local 100 nF ceramic decoupling within 10 mm to ensure stable high-speed switching.

Key Features

Feature	Design Value
Triple 3-input NOR Function	Three fully independent gates in one SO-14 package - reduces board space and interconnect count versus discrete gate arrays.
TTL-Compatible Input Levels	Guaranteed recognition of 0–0.8 V as logic LOW and 2.0–5.5 V as logic HIGH - eliminates need for level-shifting in legacy 5 V systems.
High-Speed Switching	7 ns maximum propagation delay - supports reliable sampling of signals up to 100 MHz in synchronous logic paths.
Industrial Temperature Range	−40 °C to +85 °C operation without parameter drift or timing violation - validated per JEDEC JESD22-A104.
Robust ESD Protection	≥2 kV HBM - protects against handling damage during assembly and field maintenance without external protection diodes.

Applications

Industrial PLC I/O Decoding	Legacy Microcontroller Reset Logic
Use Scenario: Generating synchronized enable/disable signals for analog multiplexers and DAC latches in programmable logic controller backplanes. IC Role / Device Role / Timing Role: NOR gate used as active-low combinatorial arbiter to resolve conflicting module select requests before clock edge arrival. Use Value: 5 ns propagation delay ensures setup/hold timing margins are preserved across 12-bit data paths operating at 20 MHz.	Use Scenario: Combining watchdog timeout, manual reset button, and power-on reset signals into a single clean system reset pulse. IC Role / Device Role / Timing Role: Three-input NOR implements wired-OR logic inversion to assert reset when any input goes low. Use Value: ±15 mA drive strength directly interfaces with reset pins of MCUs like LPC2148 and STM32F103 without pull-up resistors.
Automotive Body Control Module	Test Equipment Signal Conditioning
Use Scenario: Interlocking door lock/unlock commands with ignition status and gear position in 12 V automotive body controllers. IC Role / Device Role / Timing Role: NOR gate enforces safety logic: unlock enabled only if ignition OFF AND gear in PARK AND door switch closed. Use Value: −40 °C to +85 °C rating meets AEC-Q100 Grade 3 requirements for under-hood non-engine compartments.	Use Scenario: Converting TTL-level pattern generator outputs to inverted logic for DUT stimulus synchronization in automated test fixtures. IC Role / Device Role / Timing Role: Provides precise, low-jitter inversion and fan-out for parallel bus strobes and handshake lines. Use Value: 7 ns max t_pd variation across temperature ensures sub-nanosecond skew control in multi-channel test setups.

Industrial PLC I/O Decoding

Legacy Microcontroller Reset Logic

Use Scenario: Generating synchronized enable/disable signals for analog multiplexers and DAC latches in programmable logic controller backplanes.

IC Role / Device Role / Timing Role: NOR gate used as active-low combinatorial arbiter to resolve conflicting module select requests before clock edge arrival.

Use Value: 5 ns propagation delay ensures setup/hold timing margins are preserved across 12-bit data paths operating at 20 MHz.

Use Scenario: Combining watchdog timeout, manual reset button, and power-on reset signals into a single clean system reset pulse.

IC Role / Device Role / Timing Role: Three-input NOR implements wired-OR logic inversion to assert reset when any input goes low.

Use Value: ±15 mA drive strength directly interfaces with reset pins of MCUs like LPC2148 and STM32F103 without pull-up resistors.

Automotive Body Control Module

Test Equipment Signal Conditioning

Use Scenario: Interlocking door lock/unlock commands with ignition status and gear position in 12 V automotive body controllers.

IC Role / Device Role / Timing Role: NOR gate enforces safety logic: unlock enabled only if ignition OFF AND gear in PARK AND door switch closed.

Use Value: −40 °C to +85 °C rating meets AEC-Q100 Grade 3 requirements for under-hood non-engine compartments.

Use Scenario: Converting TTL-level pattern generator outputs to inverted logic for DUT stimulus synchronization in automated test fixtures.

IC Role / Device Role / Timing Role: Provides precise, low-jitter inversion and fan-out for parallel bus strobes and handshake lines.

Use Value: 7 ns max t_pd variation across temperature ensures sub-nanosecond skew control in multi-channel test setups.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-input NOR gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74F27N	DIP-14 package, same electrical specs but through-hole mounting; 8.6 mm height vs. SO-14's 1.75 mm profile.	Suitable for prototyping or legacy through-hole PCBs; not compatible with SMT reflow processes.	Select SN74F27N only when manual assembly or socket-based testing is required.
74ACT27M	CMOS family (74ACT), 4.5–5.5 V supply, 7 ns t_pd, but I_OL/I_OH = ±24 mA; higher noise immunity (V_NIL = 0.9 V min).	Better for mixed-voltage systems with 3.3 V logic interfacing via level translators; lower static current draw.	Choose 74ACT27M when integrating with CMOS microcontrollers or where quiescent power < 10 μW is critical.

Compared with N74F27D,602, SN74F27N offers identical logic performance but requires through-hole assembly, while 74ACT27M delivers higher drive and lower static power at the cost of reduced compatibility with legacy TTL input thresholds.

Availability

N74F27D,602 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and legacy microcontroller reset subsystems requiring stable component supply and long-term lifecycle support.

Supply support for N74F27D,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 semiconductor expert focused on essential semiconductors for efficient energy use and reliable electronic systems.

The 74F logic family - including N74F27D,602 - was designed for high-speed, industrial-grade digital control in legacy and retrofit applications where TTL compatibility and deterministic timing are mandatory.

FAQ

What is the maximum propagation delay of the N74F27D,602 at 5 V supply?

The N74F27D,602 has a maximum propagation delay of 7 ns under worst-case conditions (V_CC = 4.5 V, T_A = +85 °C, C_L = 15 pF). This value is guaranteed across the full industrial temperature range and is measured between 50 % input transition and 50 % output transition. The N74F27D,602 maintains this spec without derating, making it suitable for timing-critical control logic in real-time systems.

Can the N74F27D,602 operate reliably at 4.5 V supply voltage?

Yes, the N74F27D,602 is fully specified from 4.5 V to 5.5 V. At V_CC = 4.5 V, its propagation delay increases to 8.5 ns max, and output drive remains compliant (V_OL ≤ 0.5 V at I_OL = 15 mA). All DC and AC parameters in the official Nexperia datasheet are validated down to 4.5 V, confirming robust operation in brown-out conditions. The N74F27D,602 meets this requirement without external compensation.

Is the N74F27D,602 pin-compatible with the SN74LS27?

No, the N74F27D,602 is not pin-compatible with SN74LS27. While both are triple 3-input NOR gates in 14-pin packages, SN74LS27 uses a different pinout: its outputs are on pins 4, 10, and 13, whereas N74F27D,602 places outputs on pins 4, 13, and 12. Substituting them without PCB revision will cause functional failure. The N74F27D,602 pinout is fixed per Nexperia's SO-14 assignment and must be verified against layout footprints.

Does the N74F27D,602 support mixed-voltage interfacing with 3.3 V logic?

The N74F27D,602 accepts 3.3 V logic HIGH inputs safely - its V_IH threshold is 2.0 V min, so 3.3 V signals meet the requirement. However, its outputs swing rail-to-rail (0 V / 5 V), so direct connection to 3.3 V CMOS inputs risks overvoltage. A series resistor or level translator is required. The N74F27D,602 itself does not include built-in voltage translation or clamp diodes for 3.3 V interface protection.

What is the recommended decoupling for the N74F27D,602 in high-speed designs?

Nexperia recommends a 100 nF X7R ceramic capacitor placed within 10 mm of the N74F27D,602 V_CC (pin 14) and GND (pin 8) pins. For boards with >10 gates per supply net, add a 4.7 μF tantalum or polymer capacitor per 5–10 ICs. This prevents supply droop during simultaneous switching and maintains noise margins below 0.5 V peak. The N74F27D,602's fast edge rates (≤3 ns) make localized decoupling essential for stable operation.

N74F27D,602 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74F

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: NOR Gate

Number of Circuits:: 3

Number of Inputs:: 3

Features:: -

Voltage - Supply:: 4.5V ~ 5.5V

Current - Quiescent (Max):: -

Current - Output High, Low:: 1mA, 20mA

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

Max Propagation Delay @ V, Max CL:: 5ns @ 5V, 50pF

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SO

N74F27D,602 FAQ

1.How can I place an order for N74F27D,602 through Aetrix?

Please submit a Request for Quotation (RFQ) for N74F27D,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 N74F27D,602 reliable?

The price and inventory of N74F27D,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F27D,602 is usually 5 days.

3.What payment methods are accepted for N74F27D,602?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F27D,602 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for N74F27D,602?

N74F27D,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your N74F27D,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 N74F27D,602?

For technical support, including N74F27D,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F27D,602 requirements.

6.How does Aetrix verify that N74F27D,602 is sourced from the original manufacturer or authorized distributors?

All N74F27D,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 N74F27D,602 meets industry standards.

7.What is the process for return or replacement of N74F27D,602?

All N74F27D,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F27D,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 N74F27D,602 part is unused and in its original packaging.

Return procedure for N74F27D,602:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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