NXP Semiconductors N74F862N,602

Overview

N74F862N,602 from Philips Semiconductors is a 24-pin inverting 3-state bus transceiver designed for high-performance bidirectional data/address bus interfacing with parity support. It features 10-bit A-to-B and B-to-A paths, 6.0 ns typical propagation delay, ±20 µA input loading, and 64 mA output sink capability. It operates across 0 °C to +70 °C at 5 V ±10% and is packaged in a 300-mil plastic DIP.

For engineers reviewing the N74F862N,602 datasheet, N74F862N,602 pinout, N74F862N,602 application, or N74F862N,602 equivalent, key selection criteria include inverting logic behavior, dual 3-state enable control (OEAB/OEBA), broadside DIP24 pinout, 64 mA drive strength, and compatibility with FAST TTL logic families in wide-bus parity systems.

Technical Context

The N74F862N,602 implements two independent 10-bit inverting transceiver paths with separate 3-state enables: OEAB controls B→A direction, OEBA controls A→B direction. Its logic diagram confirms full inversion on both directions, with no internal latching or clocking - purely combinatorial bus buffering.

It uses NPN-base input structures delivering 20 µA HIGH/LOW input current, enabling low bus loading and high fan-in compatibility with MOS microprocessors. Output disable timing (tPHZ/tPLZ) is as fast as 2.5 ns, ensuring glitch-free transitions during power-up/down without external sequencing.

Key Specifications

Pinout & Package

Package: Plastic dual in-line package, 24 leads, 300 mil width (SOT222-1). Broadside pinout minimizes parallel trace crosstalk in dense bus layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus transceiver applications.

Compared with SN74F862N and 74ACT862PC, the N74F862N,602 delivers identical 5 V FAST TTL performance and pinout, while the ACT variant trades speed for voltage flexibility and power reduction - making N74F862N,602 optimal for legacy 5 V bus upgrades where timing margin and sourcing continuity are critical.

Availability

N74F862N,602 is available at Aetrix Electronics and suitable for memory expansion interfaces, parity-checked data buses, and industrial backplane interconnects requiring stable component supply and long-term obsolescence management.

Supply support for N74F862N,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 global semiconductor innovator with leadership in logic, analog, and interface ICs for industrial and computing applications.

The 74F logic family was engineered for high-speed TTL-compatible operation in demanding computing and instrumentation systems, with the 74F862 specifically targeting wide-bus parity and address extension needs.

FAQ

What is the logic function of the N74F862N,602?

The N74F862N,602 is an inverting 3-state bus transceiver with two independent 10-bit paths: A0–A9 and B0–B9. Signal inversion occurs in both directions (A→B and B→A), controlled by separate active-low enables OEBA and OEAB. It provides no latching or clocking - only combinatorial level translation and bus isolation. This behavior is confirmed in the FUNCTION TABLE and LOGIC DIAGRAM of the Philips product data sheet.

Does the N74F862N,602 support 5 V operation with guaranteed timing?

Yes, the N74F862N,602 is specified for 4.5 V to 5.5 V supply operation with guaranteed AC performance across 0 °C to +70 °C. Its typical propagation delay is 6.0 ns at VCC = 5 V, CL = 50 pF, and Tamb = 25 °C, with worst-case 9.0 ns under full commercial conditions. These values are measured and published in the AC ELECTRICAL CHARACTERISTICS table of the official Philips datasheet.

What is the maximum output sink current per pin for the N74F862N,602?

The N74F862N,602 delivers 64 mA maximum sink current per output pin, as specified in the RECOMMENDED OPERATING CONDITIONS table under IOL. This value is verified at VCC = 5.5 V and Tamb = 25 °C, and remains valid across the full operating temperature range. The device also supports short-circuit output current up to –225 mA (IOS), though sustained shorting is prohibited per datasheet safety notes.

How does the N74F862N,602 handle power-up and power-down transitions?

The N74F862N,602 guarantees glitch-free 3-state outputs during power-up and power-down, as explicitly stated in its FEATURES list. This is achieved via internal circuitry that holds outputs in high-impedance until VCC stabilizes within operational limits. No external power sequencing is required, making it suitable for hot-plug and reset-resilient bus architectures where bus contention must be avoided.

Is the N74F862N,602 pin-compatible with other 74F-series transceivers like the 74F245?

No, the N74F862N,602 is not pin-compatible with the 74F245. It uses a unique broadside DIP24 pinout (SOT222-1) with alternating A/B signals and dual OE pins (OEAB/OEBA), whereas the 74F245 uses a different 20-pin SOIC/DIP layout with single-direction control. Pin mapping, pin count, and enable architecture differ fundamentally - direct PCB substitution is not possible without layout revision.