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SN74LS390N

Public Made by Adom

by adom

XBLW Counters, Dividers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SN74LS390N

XBLW · Counters, Dividers · DIP-16

SN74LS390N from XBLW, in a DIP-16. 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 1CP0 input Clock input (active HIGH-to-LOW edge-triggered) of the counter 1 divide-by-2 section.
2 1MR input Asynchronous master reset input of counter 1, active HIGH.
3 1Q0 output Flip-flop output Q0 of counter 1.
4 1CP1 input Clock input (HIGH-to-LOW edge-triggered) of the counter 1 divide-by-5 section.
5 1Q1 output Flip-flop output Q1 of counter 1.
6 1Q2 output Flip-flop output Q2 of counter 1.
7 1Q3 output Flip-flop output Q3 of counter 1.
8 GND power_in Ground (0V).
9 2Q3 output Flip-flop output Q3 of counter 2.
10 2Q2 output Flip-flop output Q2 of counter 2.
11 2Q1 output Flip-flop output Q1 of counter 2.
12 2CP1 input Clock input (HIGH-to-LOW edge-triggered) of the counter 2 divide-by-5 section.
13 2Q0 output Flip-flop output Q0 of counter 2.
14 2MR input Asynchronous master reset input of counter 2, active HIGH.
15 2CP0 input Clock input (HIGH-to-LOW edge-triggered) of the counter 2 divide-by-2 section.
16 VCC power_in Supply voltage.

Key specifications

Parameter Value
Manufacturer XBLW
Package DIP-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: SN74LS390N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74ls390n-etched.step / sn74ls390n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls390n.step / sn74ls390n.glb are the bare package body.

Provenance

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

  • Datasheet: XBLW datasheet (15 pp, sha256 a0c6ca959a7581bf, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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