NXP Semiconductors N74F1804N,602

Overview

N74F1804N,602 from Philips Semiconductors is a hex 2-input NAND driver IC in a 20-pin plastic DIP package, delivering 48mA output drive per channel, 2.5ns typical propagation delay, and operation across 0°C to +70°C with 5V ±10% supply. It serves as a high-current logic buffer in bus interface and address decoding circuits.

For engineers reviewing the N74F1804N,602 datasheet, N74F1804N,602 pinout, N74F1804N,602 application, or N74F1804N,602 equivalent, key selection criteria include center-positioned VCC/GND pin assignment, 2400-unit load fan-out capability, low-level output current rating of 48mA, and compatibility with 74F-family timing and voltage thresholds.

Technical Context

The N74F1804N,602 implements six independent 2-input NAND gates with totem-pole outputs, each capable of sourcing –48mA and sinking 48mA under recommended conditions. Its logic function follows standard NAND truth table behavior with defined VIH ≥2.0V and VIL ≤0.8V at VCC = 5V.

Designed for high-speed digital systems, it features matched internal propagation paths yielding ≤1.5ns output skew between any two outputs and supports capacitive loads up to 50pF with RL = 500Ω. The center VCC (Pin 5) and center GND (Pin 15) configuration distinguishes it electrically and physically from the corner-supply 74F804 variant.

Key Specifications

Pinout & Package

Package: 20-pin plastic dual in-line package (DIP), SOT146-1, 300-mil width, through-hole mountable.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NAND driver applications.

Compared with N74F804N,602 and SN74F30N, the N74F1804N,602 uniquely combines six high-drive NAND functions with center-supply pinout-making it optimal for bus-driving applications where layout stability and load capacity are prioritized over minimal gate count or fastest propagation.

Availability

N74F1804N,602 is available at Aetrix Electronics and suitable for bus interface drivers, address decoder buffers, legacy system repair, and industrial control I/O expansion requiring stable component supply and long-term obsolescence management.

Supply support for N74F1804N,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 pioneering European semiconductor manufacturer known for logic families, analog ICs, and automotive electronics.

The 74F logic series-including the N74F1804N,602-was engineered for high-speed commercial applications demanding superior noise immunity, consistent propagation delay, and robust output drive in 5V TTL-compatible systems.

FAQ

What is the pin configuration difference between N74F1804N,602 and N74F804N,602?

The N74F1804N,602 places VCC on Pin 5 and GND on Pin 15 (center positions), whereas the N74F804N,602 uses VCC on Pin 20 and GND on Pin 10 (corner positions). All other pin assignments-including the six NAND input/output pairs-are identical. This distinction affects PCB power routing but not logic functionality or timing performance. The N74F1804N,602 maintains full electrical equivalence with the N74F804N,602 except for supply pin location.

Does N74F1804N,602 support 50pF capacitive loads at full speed?

Yes, the N74F1804N,602 is characterized for 50pF load capacitance with RL = 500Ω, delivering 2.5ns typical propagation delay and ≤1.5ns output skew under those conditions. Its 48mA output drive ensures signal integrity across the full specified temperature range (0°C to +70°C) and supply range (4.5V–5.5V). This makes the N74F1804N,602 suitable for driving moderately loaded backplanes or daisy-chained logic stages without added termination.

What is the maximum continuous output current rating for N74F1804N,602?

The N74F1804N,602 is rated for 48mA low-level output current (IOL) and –48mA high-level output current (IOH) per channel under recommended operating conditions. Absolute maximum ratings allow brief 96mA sink, but sustained operation above 48mA risks exceeding junction temperature limits. For reliability in continuous-duty applications like LED or relay driving, the N74F1804N,602 should be operated within its 48mA specification with appropriate derating at elevated ambient temperatures.

Can N74F1804N,602 be used in place of standard 74LS00 quad NAND gates?

No-the N74F1804N,602 is not a drop-in replacement for 74LS00. It contains six 2-input NAND gates (not four), uses F-series voltage thresholds (VIH ≥2.0V, VIL ≤0.8V vs LS's 2.0V/0.8V), and delivers 48mA drive versus LS00's 8mA. While logic function matches, the N74F1804N,602's higher speed (2.5ns vs ~15ns), greater fan-out, and distinct pinout make it incompatible without circuit redesign. Use N74F1804N,602 only where its specific drive and timing capabilities are required.

Is N74F1804N,602 RoHS-compliant?

The original N74F1804N,602 was manufactured prior to RoHS implementation and contains leaded solder terminations and Pb in the die attach. It does not meet current RoHS Directive 2011/65/EU requirements. For new designs requiring RoHS compliance, consider modern alternatives such as 74LVC00A or contact Aetrix Electronics for available lead-free reprocessed or second-source equivalents with verified form-fit-function compatibility to the N74F1804N,602.