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SN74LS283D

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Texas Instruments Specialty Logic, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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package.json sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
page.json sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
README.md Publish 0.1.0 · Ray 12d ago
sn74ls283d-etched.glb sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls283d-etched.step sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls283d-hero.glb sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls283d-hero.overlay.json sn74ls283d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
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SN74LS283D

Texas Instruments · Specialty Logic · SOIC-16

SN74LS283D from Texas Instruments, in a SOIC-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 Σ2 output Sum output for bit 2 of the 4-bit adder.
2 B2 input Addend input B for bit 2.
3 A2 input Addend input A for bit 2.
4 Σ1 output Sum output for bit 1 of the 4-bit adder.
5 A1 input Addend input A for bit 1.
6 B1 input Addend input B for bit 1.
7 C0 input Carry input to the least significant bit.
8 GND power_in Ground terminal, the network ground reference for all voltages.
9 C4 output Carry output from the fourth bit.
10 Σ4 output Sum output for bit 4 of the 4-bit adder.
11 B4 input Addend input B for bit 4.
12 A4 input Addend input A for bit 4.
13 Σ3 output Sum output for bit 3 of the 4-bit adder.
14 A3 input Addend input A for bit 3.
15 B3 input Addend input B for bit 3.
16 VCC power_in Supply voltage; absolute maximum rating is 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: SN74LS283D
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sn74ls283d-etched.step / sn74ls283d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls283d.step / sn74ls283d.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (12 pp, sha256 217d23c27795e496, retrieved 2026-10-12, 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