NXP Semiconductors N74F260D,602

Overview

N74F260D,602 from Philips Semiconductors is a dual 5-input NOR gate logic IC in a 14-pin plastic SO package (SOT108-1), operating at 5 V with 3.5 ns typical propagation delay and 6 mA total supply current. It delivers high-speed combinatorial logic for digital control systems requiring strict timing margins and noise-immune multi-input gating.

For engineers reviewing the N74F260D,602 datasheet, N74F260D,602 pinout, N74F260D,602 application, or N74F260D,602 equivalent, key selection criteria include propagation delay consistency across both gates, guaranteed fan-out of 50/33 (high/low), input clamp voltage of –1.2 V, output drive capability of ±20 mA, and commercial-grade temperature range (0°C to +70°C).

Technical Context

The N74F260D,602 implements two independent 5-input NOR functions using TTL-compatible Fast (F) bipolar technology. Each gate outputs low only when all five inputs are low; any high input forces output low - enabling strict active-low enable and arbitration logic.

It operates strictly within 4.5 V to 5.5 V supply range with defined VIH ≥ 2.0 V and VIL ≤ 0.8 V, and supports load conditions up to 50 unit loads high / 33 low per output, verified under CL = 50 pF and RL = 500 Ω test conditions.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 5-input NOR gate applications.

Compared with SN74F260N and 74ACT260SCX, the N74F260D,602 offers optimal balance of SO-package density, guaranteed 3.5 ns typical delay, and native 5 V TTL interoperability - making it the preferred choice for volume-manufactured commercial control boards where layout efficiency and interface fidelity are critical.

Availability

N74F260D,602 is available at Aetrix Electronics and suitable for industrial control logic, legacy bus arbitration, test equipment signal conditioning, and power supply sequencing monitoring requiring stable component supply and long-term obsolescence management.

Supply support for N74F260D,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 specializing in logic, analog, and automotive ICs before its semiconductor division was acquired in 2006.

The 74F logic family - including the N74F260D,602 - was engineered for high-speed commercial applications demanding faster switching than standard 74LS, with optimized power-delay trade-offs for mid-1980s digital systems.

FAQ

What is the maximum operating supply voltage for the N74F260D,602?

The N74F260D,602 has an absolute maximum supply voltage rating of +7.0 V, but its recommended operating range is strictly 4.5 V to 5.5 V. Operation above 5.5 V risks exceeding internal junction limits and may cause accelerated parametric drift or latch-up. The N74F260D,602 must be powered within this 5 V ±10% window to guarantee specified propagation delay, output drive, and noise margin performance.

Does the N74F260D,602 support mixed-voltage interfacing with 3.3 V logic?

No - the N74F260D,602 is a 5 V-only TTL-compatible device with VIH minimum of 2.0 V and VIL maximum of 0.8 V. While a 3.3 V logic high may exceed VIH in some cases, voltage tolerances, noise margins, and fan-out derating make reliable interfacing uncertain. Direct connection to 3.3 V CMOS outputs is not recommended without level translation. The N74F260D,602 is designed exclusively for 5 V system integration.

Can both NOR gates in the N74F260D,602 be used independently without affecting each other's timing?

Yes - the N74F260D,602 contains two fully isolated 5-input NOR gates with separate input sets (D0a–D0e and D1a–D1e) and independent outputs (Q0 and Q1). AC electrical characteristics specify propagation delay individually per gate under identical test conditions, and no crosstalk or shared internal paths affect timing. Each gate in the N74F260D,602 operates autonomously with consistent 3.5 ns typical delay regardless of the other gate's state.

What is the short-circuit output current rating for the N74F260D,602?

The N74F260D,602 has a short-circuit output current (IOS) rating of –60 mA to –150 mA per output, tested at VCC = MAX with output forced low. This reflects worst-case internal current limiting under sustained short conditions. However, the datasheet explicitly warns that no more than one output should be shorted at a time, and IOS testing must be performed last in parameter sequences to avoid thermal interference. Continuous short-circuit operation is not supported for the N74F260D,602.

Is the N74F260D,602 RoHS compliant?

The N74F260D,602 was manufactured prior to RoHS Directive implementation (2006) and uses leaded solder and packaging materials not compliant with current RoHS requirements. It falls under RoHS exemption 7a (lead in high-melting-temperature type solders) for legacy logic devices. Aetrix Electronics supplies only traceable, date-coded original Philips stock meeting original specification - the N74F260D,602 is not available in RoHS-compliant revision.