Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

SN74HC04

Texas Instruments · Hex inverter · SOIC-14

Six independent inverters (NOT gates) in high-speed CMOS, SOIC-14. Each output is the logic complement of its input, the most basic logic function and a constant workhorse: inverting a signal, buffering and cleaning up slow or noisy edges, building ring oscillators and simple clocks, or squaring up a crystal. With six gates in one package it is often the glue that finishes a design. Runs 2-6 V.

Pinout

Pin Name Type Function
1 1A input Channel 1 inverter input. CMOS logic input, VIH >= 3.15 V at VCC = 4.5 V; input clamp current +/-20 mA max.
2 1Y output Channel 1 inverter output; Y = /A. CMOS push-pull output, IOH/IOL rated up to +/-5.2 mA at VCC = 6 V.
3 2A input Channel 2 inverter input. CMOS logic input, VIH >= 3.15 V at VCC = 4.5 V.
4 2Y output Channel 2 inverter output; Y = /A. CMOS push-pull output.
5 3A input Channel 3 inverter input. CMOS logic input, VIH >= 3.15 V at VCC = 4.5 V.
6 3Y output Channel 3 inverter output; Y = /A. CMOS push-pull output.
7 GND power_in Ground reference (0 V). Continuous current through GND rated up to 50 mA.
8 4Y output Channel 4 inverter output; Y = /A. CMOS push-pull output.
9 4A input Channel 4 inverter input. CMOS logic input.
10 5Y output Channel 5 inverter output; Y = /A. CMOS push-pull output.
11 5A input Channel 5 inverter input. CMOS logic input.
12 6Y output Channel 6 inverter output; Y = /A. CMOS push-pull output.
13 6A input Channel 6 inverter input. CMOS logic input.
14 VCC power_in Positive supply. Recommended 2 V to 6 V (nominal 5 V); absolute max 7 V. Typical ICC = 2 uA at VCC = 6 V.

Key specifications

Parameter Value
Type Hex inverter (6x NOT)
Gates 6 independent
Function Y = NOT A
Logic family HC (high-speed CMOS)
Supply voltage 2-6 V
Propagation delay ~8 ns at 5 V
Package SOIC-14
Body (L×W×H) 8.65 × 3.9 × 1.75 mm

Ordering variants

Same part, different packaging or reel option.

  • SN74HC04D (SOIC-14, tube)
  • SN74HC04DR (SOIC-14, tape & reel)

CAD (KiCad official)

  • Symbol: 74xx:74HC04
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 fcb61955a88dd2b9, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF