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SN74LS93D

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

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package.json sn74ls93d: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray 17h ago
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SN74LS93D

Texas Instruments · Counters, Dividers · SOIC-14

SN74LS93D 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 CKB input Clock input B for the divide-by-eight section (QB, QC, QD); connect to QA to use the full 4-bit binary count.
2 R0(1) input Gated zero-reset input 1; the counter is reset to zero when both R0(1) and R0(2) are high.
3 R0(2) input Gated zero-reset input 2; the counter is reset to zero when both R0(1) and R0(2) are high.
4 NC unconnected No internal connection.
5 VCC power_in Positive supply voltage.
6 NC unconnected No internal connection.
7 NC unconnected No internal connection.
8 QC output Counter output C, the third bit of the binary count.
9 QB output Counter output B, the second bit of the binary count.
10 GND power_in Ground.
11 QD output Counter output D, the most significant bit of the binary count.
12 QA output Counter output A, the divide-by-two output and least significant bit.
13 NC unconnected No internal connection.
14 CKA input Clock input A for the divide-by-two section (QA); count pulses are applied here.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LS93D
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ls93d-etched.step / sn74ls93d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls93d.step / sn74ls93d.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 43d2e13b0f0e6ce2, retrieved 2026-10-10, tier: lcsc)
  • 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