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SN74LV21ADR

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by adom

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

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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SN74LV21ADR

Texas Instruments · Logic Gates · SOIC-14

SN74LV21ADR 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 First input of AND gate 1; logic input voltage 0 to 5.5 V
2 1B input Second input of AND gate 1; logic input voltage 0 to 5.5 V
3 NC unconnected Not internally connected
4 1C input Third input of AND gate 1; logic input voltage 0 to 5.5 V
5 1D input Fourth input of AND gate 1; logic input voltage 0 to 5.5 V
6 1Y output Output of AND gate 1 (Y = 1A • 1B • 1C • 1D); output voltage 0 to VCC
7 GND power_in Ground reference, 0 V
8 2Y output Output of AND gate 2 (Y = 2A • 2B • 2C • 2D); output voltage 0 to VCC
9 2A input First input of AND gate 2; logic input voltage 0 to 5.5 V
10 2B input Second input of AND gate 2; logic input voltage 0 to 5.5 V
11 NC unconnected Not internally connected
12 2C input Third input of AND gate 2; logic input voltage 0 to 5.5 V
13 2D input Fourth input of AND gate 2; logic input voltage 0 to 5.5 V
14 VCC power_in Positive supply voltage; 2 to 5.5 V

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LV21ADR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74lv21adr-etched.step / sn74lv21adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lv21adr.step / sn74lv21adr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 6cf9dce71cfece45, retrieved 2026-10-07, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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