component

SN74LS283N

Public Unreviewed

by Ray

lingxingic Specialty Logic, DIP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentlogicsn74ls283n
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

SN74LS283N

lingxingic · Specialty Logic · DIP-16

SN74LS283N from lingxingic, in a DIP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 S2 output Sum output bit 2. Standard LS TTL totem-pole output representing the second-least-significant bit of A + B + CIN.
2 B2 input B operand input, bit 2. LS TTL logic input for the second bit of the B addend.
3 A2 input A operand input, bit 2. LS TTL logic input for the second bit of the A addend.
4 S1 output Sum output bit 1 (least-significant sum bit). Standard LS TTL totem-pole output.
5 A1 input A operand input, bit 1 (least-significant A bit). LS TTL logic input.
6 B1 input B operand input, bit 1 (least-significant B bit). LS TTL logic input.
7 CIN input Carry input. Must be held LOW when no carry-in is intended for active-HIGH operand use. When cascading adders, connect to the previous stage's COUT.
8 GND power_in Ground reference (0 V).
9 COUT output Carry output generated via fast internal look-ahead carry. Drive next stage's CIN when cascading in 4-bit increments.
10 S4 output Sum output bit 4 (most-significant sum bit). Standard LS TTL totem-pole output.
11 B4 input B operand input, bit 4 (most-significant B bit). LS TTL logic input.
12 A4 input A operand input, bit 4 (most-significant A bit). LS TTL logic input.
13 S3 output Sum output bit 3. Standard LS TTL totem-pole output.
14 A3 input A operand input, bit 3. LS TTL logic input.
15 B3 input B operand input, bit 3. LS TTL logic input.
16 VCC power_in Positive supply voltage. Nominal 5 V for the LS TTL family.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SN74LS283NN
  • SN74LS283NDR

CAD (KiCad official)

  • Symbol: SN74LS283N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: lingxingic datasheet (18 pp, sha256 dc14ab00bb32261b, retrieved 2026-08-17, tier: lcsc)
  • 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