NXP Semiconductors N74F86D,602

Overview

N74F86D,602 from NXP Semiconductors (formerly Philips) is a quad 2-input exclusive-OR gate in a 14-pin SOIC package, operating at 5V with 4.3ns typical propagation delay, 16.5mA typical supply current, and industrial temperature range (–40°C to +85°C). It implements four independent XOR logic functions for digital signal comparison, parity generation, and arithmetic carry control in TTL-compatible systems.

For engineers reviewing the N74F86D,602 datasheet, N74F86D,602 pinout, N74F86D,602 application, or N74F86D,602 equivalent, key selection criteria include propagation delay consistency across all four gates, fan-out capability of 50/33 (high/low), input clamp voltage of –1.2V, output drive strength (20mA sink), and compatibility with 74F-series logic families in space-constrained industrial control PCBs.

Technical Context

The N74F86D,602 implements four identical two-input XOR gates using bipolar FET (Fairchild F-series) TTL-compatible circuitry. Each gate exhibits non-inverting and inverting propagation delays (tPLH/tPHL) under defined load conditions (CL = 50pF, RL = 500Ω), with guaranteed max 6.5ns delay over industrial temperature range.

It operates strictly within 4.5V–5.5V supply range and supports standard TTL input thresholds (VIH = 2.0V min, VIL = 0.8V max). Output stages deliver 20mA sink current and –1mA source current, enabling direct interface with other 74F, 74AS, and 74ALS devices without level-shifting.

Key Specifications

Pinout & Package

Package: 14-pin plastic small outline (SO), body width 3.9 mm, SOT108-1 footprint, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar XOR gate applications.

Compared with N74F86D,602, SN74F86DR offers tighter manufacturing controls for mission-critical deployments, while 74ACT86SCX trades speed for ultra-low quiescent current and CMOS compatibility-making N74F86D,602 optimal for cost-sensitive, high-speed TTL interoperability where legacy interface fidelity is mandatory.

Availability

N74F86D,602 is available at Aetrix Electronics and suitable for industrial control panels, telecom line cards, and legacy test equipment requiring stable component supply and long-term obsolescence management.

Supply support for N74F86D,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

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic IC development.

The 74F family-including N74F86D,602-was engineered for high-speed, low-power TTL-compatible logic in industrial computing and communications infrastructure, emphasizing propagation delay consistency and thermal stability.

FAQ

What is the maximum operating frequency supported by the N74F86D,602?

The N74F86D,602 does not specify a maximum clock frequency because it is a combinational logic device without internal clocking. Its usable toggle rate is determined by propagation delay: with a worst-case tPLH/tPHL of 8.0ns over industrial temperature, the N74F86D,602 supports reliable operation in logic paths where signal transitions occur no faster than ~125MHz. Actual system frequency depends on total path delay including trace length and load capacitance.

Can the N74F86D,602 be used with 3.3V logic systems?

No, the N74F86D,602 is not designed for 3.3V operation. Its recommended supply voltage is strictly 4.5V–5.5V, and input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) assume a 5V rail. Driving N74F86D,602 inputs from 3.3V logic may result in marginal or non-functional VIH margins. For 3.3V systems, consider 74LVC86 or 74AHC86 instead.

Does the N74F86D,602 support hot-swap or live-insertion?

No, the N74F86D,602 does not support hot-swap. Its absolute maximum ratings do not include powered insertion stress testing, and the input clamp structure is not rated for live-bus transient exposure. Applying VCC or signals before establishing GND can cause latch-up or permanent damage. Always power-cycle the board before inserting or removing the N74F86D,602.

What is the meaning of "N" and "D" in N74F86D,602?

In N74F86D,602, "N" denotes NXP (post-Philips branding), "74F" identifies the Fairchild-compatible fast TTL logic family, "86" specifies the quad 2-input XOR function, "D" indicates the 14-pin SOIC package (SOT108-1), and "602" is the Philips/NXP internal package variant code for tape-and-reel delivery with specific moisture sensitivity and marking format.

How does the N74F86D,602 handle unused inputs?

Unused inputs on the N74F86D,602 must be terminated to a valid logic level-either VCC or GND-to prevent floating nodes that cause excessive current draw, oscillation, or EMI. Leaving inputs unconnected risks unpredictable output states and increased ICC. For example, tie unused Dna/Dnb pairs to GND via 1kΩ resistors to ensure stable Qn = LOW output and minimize power consumption in the N74F86D,602.