onsemi MC74F367N

Overview

MC74F367N from ON Semiconductor (formerly Motorola) is a hex 3-state noninverting buffer/driver IC with 4-bit + 2-bit configuration, operating at 5 V supply, supporting ±15 mA output drive, 7 ns max propagation delay, and high-impedance (Z) outputs under OE control - used in bus interface and data routing applications.

For engineers reviewing the MC74F367N datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 3-state timing (tPZH/tPHZ), TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), output drive strength (IOL = 64 mA), and plastic DIP-16 packaging for through-hole industrial logic systems.

Technical Context

The MC74F367N implements six independent noninverting buffer channels with shared active-low output enable (OE), enabling simultaneous 3-state control of all outputs. It uses FAST Schottky TTL technology to achieve sub-7 ns propagation delays while maintaining standard TTL DC voltage levels and noise margins.

Its dual-section architecture (4-bit + 2-bit) allows flexible partitioning of data paths - four channels commonly serve main data buses while two support control or status lines. The device operates only at VCC = 5.0 V ±10% and requires no external biasing or pull-ups for standard TTL interfacing.

Key Specifications

Pinout & Package

MC74F367N is housed in a 16-pin plastic dual in-line package (PDIP), case number 648-08, with 0.3-inch body width and standard through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex noninverting 3-state buffer applications.

Compared with SN74F367N, MC74F367N offers identical electrical behavior and mechanical fit; versus 74ACT367PC, it delivers faster edge rates and native TTL compatibility at the cost of higher quiescent current and fixed 5 V operation.

Availability

MC74F367N is available at Aetrix Electronics and suitable for industrial control backplanes, legacy test equipment I/O, and avionics maintenance panels requiring stable component supply and long-term obsolescence management.

Supply support for MC74F367N 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

ON Semiconductor is a global semiconductor supplier delivering energy-efficient, high-performance silicon solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74F367N belongs to the FAST TTL logic family originally developed by Motorola and continued by ON Semiconductor, designed specifically for high-speed, noise-immune digital interfacing in 5 V legacy systems.

FAQ

What is the function of pin 8 (OE) on the MC74F367N?

Pin 8 is the active-high Output Enable (OE) terminal. When OE = H (≥2.0 V), all six outputs (Y1–Y6) follow their respective inputs (A1–A6) noninverting. When OE = L (≤0.8 V), all outputs enter high-impedance (Z) state, electrically disconnecting them from the bus. This enables safe multi-driver bus sharing in MC74F367N-based systems.

Does the MC74F367N support mixed-voltage operation?

No, the MC74F367N is specified only for VCC = 5.0 V ±10% operation and does not support 3.3 V or other supply voltages. Its input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output drive characteristics are optimized for 5 V TTL compatibility. Using MC74F367N outside this range violates guaranteed specifications and may cause timing or logic errors.

What is the maximum capacitive load the MC74F367N can drive reliably?

The MC74F367N AC characteristics (tPLH/tPHL) are characterized at CL = 50 pF. While it can drive heavier loads, propagation delay increases linearly with capacitance - e.g., at CL = 100 pF, measured tPLH exceeds 10 ns. For reliable timing at rated speed, keep total bus capacitance ≤50 pF per MC74F367N output, including trace, connector, and receiver input capacitance.

Is the MC74F367N RoHS compliant?

Yes, the MC74F367N plastic DIP (N suffix) variant meets RoHS Directive 2011/65/EU requirements. Lead content is restricted to <1000 ppm, and all six hazardous substances (Pb, Cd, Hg, Cr⁶⁺, PBB, PBDE) are within compliance limits. Aetrix Electronics provides full material declarations and RoHS certificates upon request for MC74F367N orders.

How does the MC74F367N differ from the MC74F368N?

The MC74F367N is a noninverting hex buffer, whereas the MC74F368N is its inverting counterpart. Both share identical pinout, timing, drive strength, and 3-state control, but MC74F367N outputs replicate input logic states, while MC74F368N outputs invert them. Functionally, they are not interchangeable without logic redesign - selecting MC74F367N ensures direct signal pass-through in bus driver roles.