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SN74AHC573DWR

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by adom

Texas Instruments Signal Switches, Multiplexers, Decoders, SOP-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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docs sn74ahc573dwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers sn74ahc573dwr: viewers · Ray 4d ago
package.json Publish 0.1.0 · Ray 4d ago
page.json Set visibility: public · Ray 4d ago
README.md Initial commit: component/sn74ahc573dwr · Ray 4d ago
sn74ahc573dwr-etched.fit.json sn74ahc573dwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahc573dwr-etched.glb sn74ahc573dwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahc573dwr-etched.step sn74ahc573dwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahc573dwr.glb Publish 0.1.0 · Ray 4d ago
sn74ahc573dwr.kicad_mod Publish 0.1.0 · Ray 4d ago
sn74ahc573dwr.kicad_sym Publish 0.1.0 · Ray 4d ago
sn74ahc573dwr.lbr Publish 0.1.0 · Ray 4d ago
sn74ahc573dwr.step Publish 0.1.0 · Ray 4d ago

SN74AHC573DWR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SOP-20-300mil

SN74AHC573DWR from Texas Instruments, in a SOP-20-300mil. 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 OE input Output Enable input control for tri-state outputs.
2 1D input Data input for latch channel 1.
3 2D input Data input for latch channel 2.
4 3D input Data input for latch channel 3.
5 4D input Data input for latch channel 4.
6 5D input Data input for latch channel 5.
7 6D input Data input for latch channel 6.
8 7D input Data input for latch channel 7.
9 8D input Data input for latch channel 8.
10 GND power_in Ground, 0V reference.
11 LE input Latch Enable input control.
12 8Q output Tri-state data output for latch channel 8.
13 7Q output Tri-state data output for latch channel 7.
14 6Q output Tri-state data output for latch channel 6.
15 5Q output Tri-state data output for latch channel 5.
16 4Q output Tri-state data output for latch channel 4.
17 3Q output Tri-state data output for latch channel 3.
18 2Q output Tri-state data output for latch channel 2.
19 1Q output Tri-state data output for latch channel 1.
20 VCC power_in Positive power supply pin, rated 2V to 5.5V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOP-20-300mil
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: SN74AHC573DWR
  • Footprint: Package_SO:SOP-20_7.5x12.8mm_P1.27mm
  • 3D model: SOP-20-300mil (KiCad packages3D, STEP)
  • 3D model files: sn74ahc573dwr-etched.step / sn74ahc573dwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahc573dwr.step / sn74ahc573dwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (43 pp, sha256 8417ec29eb1ca6ae, retrieved 2026-10-01, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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