onsemi DM7417N

Overview

DM7417N from Fairchild Semiconductor is a hex buffer IC with six independent open-collector outputs rated for 15 V maximum output voltage, 40 mA sink current per channel, and guaranteed operation from 0°C to +70°C. It functions as a level-translating logic driver in industrial control interfaces requiring high-voltage signal conditioning.

For engineers reviewing the DM7417N datasheet, pinout, applications, or equivalent options, key selection criteria include open-collector voltage tolerance, sink current capability, propagation delay (10–30 ns), input threshold compatibility with TTL/CMOS, and PDIP-14 mechanical fit for legacy through-hole designs.

Technical Context

The DM7417N implements six non-inverting buffer gates with open-collector outputs, requiring external pull-up resistors for HIGH-level assertion. Each output supports up to 15 V and sinks up to 40 mA, enabling direct interface with higher-voltage loads such as relays, LEDs, and discrete transistors.

It operates within a 4.75–5.25 V supply range and meets standard TTL input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V). Propagation delays are specified at 10 ns (tPLH) and 30 ns (tPHL) under CL = 15 pF and RL = 110 Ω conditions.

Key Specifications

Pinout & Package

DM7417N is housed in a 14-lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" wide, with 0.100" lead pitch and through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN7407N and MC74HC07N, the DM7417N uniquely combines 40 mA sink capability and 15 V output rating in a TTL-compatible PDIP-14 package-making it irreplaceable for legacy 12 V industrial interface designs requiring robust current drive without redesign.

Availability

DM7417N is available at Aetrix Electronics and suitable for industrial relay interfaces, LED status array drivers, legacy bus line drivers, and TTL-to-higher-voltage level shifter applications requiring stable component supply and long-term obsolescence management.

Supply support for DM7417N 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

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in analog and discrete power products before its acquisition by ON Semiconductor in 2016.

The DM7417N belongs to Fairchild's legacy 74xx logic family, designed specifically for industrial and instrumentation applications demanding rugged, high-voltage open-collector buffering in through-hole packaging.

FAQ

What is the maximum output voltage rating for DM7417N?

The DM7417N has a maximum output voltage rating of 15 V. This specification allows each open-collector output to safely interface with 12 V loads such as relay coils and LED strings without additional protection circuitry. The 15 V rating is absolute maximum and applies regardless of whether the output is actively sinking or in high-impedance state. Operation beyond this voltage risks permanent device damage.

Does DM7417N require external pull-up resistors?

Yes, DM7417N requires external pull-up resistors on all six open-collector outputs to establish HIGH logic levels. Since the outputs lack internal pull-ups, proper logical operation depends on correctly sized external resistors that balance rise time, power dissipation, and fan-out requirements. Typical values range from 1 kΩ to 10 kΩ depending on load capacitance and voltage level.

What is the sink current capability per output of DM7417N?

Each DM7417N output can sink up to 40 mA continuously under recommended operating conditions. This current rating is specified at VCC = minimum and IOL = maximum, with VOL ≤ 0.7 V. It enables direct driving of common industrial components like 12 V/20 mA relays or multiple parallel LEDs without external amplification.

Is DM7417N compatible with TTL input logic levels?

Yes, DM7417N is fully compatible with standard TTL input thresholds: VIH ≥ 2.0 V for HIGH recognition and VIL ≤ 0.8 V for LOW recognition. These specifications ensure interoperability with legacy 5 V TTL families such as 74LS and 74F without level-shifting circuitry. Input currents remain within ±1.6 mA across the full operating range.

What package type does DM7417N use?

DM7417N uses a 14-lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" wide, with through-hole mounting. Its package number is N14A. This legacy package supports manual soldering, socket-based prototyping, and compatibility with older PCB footprints designed for 74xx-series logic devices.