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SN74LS393DR

Public Made by Adom

by adom

Texas Instruments Counters, Dividers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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SN74LS393DR

Texas Instruments · Counters, Dividers · SOIC-14

SN74LS393DR from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1A input Clock input of counter 1, advancing the count on the falling edge (logic symbol pin 1).
2 1CLR input Direct clear input of counter 1, which resets its four outputs to low.
3 1QA output Counter 1 output QA, the least-significant bit of the binary count.
4 1QB output Counter 1 output QB of the 4-bit binary count.
5 1QC output Counter 1 output QC of the 4-bit binary count.
6 1QD output Counter 1 output QD, the most-significant bit of the binary count.
7 GND power_in Ground.
8 2QD output Counter 2 output QD, the most-significant bit of the binary count.
9 2QC output Counter 2 output QC of the 4-bit binary count.
10 2QB output Counter 2 output QB of the 4-bit binary count.
11 2QA output Counter 2 output QA, the least-significant bit of the binary count.
12 2CLR input Direct clear input of counter 2, which resets its four outputs to low.
13 2A input Clock input of counter 2, advancing the count on the falling edge.
14 VCC power_in Positive supply voltage.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74LS393DR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ls393dr-etched.step / sn74ls393dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls393dr.step / sn74ls393dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 01ffbca0db1f34ba, retrieved 2026-10-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF