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docs cd40109bpwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
cd40109bpwr-etched.fit.json cd40109bpwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cd40109bpwr-etched.glb cd40109bpwr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray
cd40109bpwr-etched.step cd40109bpwr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray
cd40109bpwr.glb Publish 0.1.0 · Ray
cd40109bpwr.kicad_mod Publish 0.1.0 · Ray
cd40109bpwr.kicad_sym Publish 0.1.0 · Ray
cd40109bpwr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
cd40109bpwr.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json cd40109bpwr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray
README.md cd40109bpwr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

CD40109BPWR

Texas Instruments · Translators / Level Shifters · TSSOP-16

CD40109BPWR from Texas Instruments, in a TSSOP-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 VCC power_in Low-voltage supply for the input logic side. Recommended 3-18V; must be ≤ VDD in normal use (mode VCC > VDD is allowed for high-to-low shifting).
2 ENABLE A input Three-state enable for channel A→E output. Logic 1 (=VCC) enables the output; logic 0 (=VSS) places output E in high-impedance state.
3 A input Low-voltage logic data input for channel A. Logic 1 = VCC, logic 0 = VSS; shifted to output E at VDD levels.
4 E tri_state High-voltage three-state logic output for channel A→E. Logic 1 = VDD, logic 0 = VSS; high-Z when ENABLE A = 0.
5 F tri_state High-voltage three-state logic output for channel B→F. Logic 1 = VDD, logic 0 = VSS; high-Z when ENABLE B = 0.
6 B input Low-voltage logic data input for channel B. Logic 1 = VCC, logic 0 = VSS; shifted to output F at VDD levels.
7 ENABLE B input Three-state enable for channel B→F output. Logic 1 = VCC enables the output; logic 0 places output F in high-impedance state.
8 VSS power_in Ground / negative supply, common to both VCC and VDD rails.
9 ENABLE C input Three-state enable for channel C→G output. Logic 1 = VCC enables the output; logic 0 places output G in high-impedance state.
10 C input Low-voltage logic data input for channel C. Logic 1 = VCC, logic 0 = VSS; shifted to output G at VDD levels.
11 G tri_state High-voltage three-state logic output for channel C→G. Logic 1 = VDD, logic 0 = VSS; high-Z when ENABLE C = 0.
12 NC unconnected No internal connection. Leave floating or tie as convenient for PCB routing.
13 H tri_state High-voltage three-state logic output for channel D→H. Logic 1 = VDD, logic 0 = VSS; high-Z when ENABLE D = 0.
14 D input Low-voltage logic data input for channel D. Logic 1 = VCC, logic 0 = VSS; shifted to output H at VDD levels.
15 ENABLE D input Three-state enable for channel D→H output. Logic 1 = VCC enables the output; logic 0 places output H in high-impedance state.
16 VDD power_in High-voltage supply for the output side. Recommended 3-18V; sets the output logic-1 level. Absolute max 20V referenced to VSS.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • CD40109BPWR
  • CD40109BPWRE4
  • CD40109BPWRG4
  • CD40109BPWRPW.A
  • CD40109BPWR.A
  • CD40109BPWRNSR
  • CD40109BPWRNSRE4
  • CD40109BPWRNSR.A
  • CD40109BPWRE
  • CD40109BPWRBE
  • CD40109BPWRBE.A
  • CD40109BPWRF
  • CD40109BPWRBF
  • CD40109BPWRBF3A
  • CD40109BPWRBF.A
  • CD40109BPWRBF3A.A

CAD (KiCad official)

  • Symbol: CD40109BPWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: cd40109bpwr-etched.step / cd40109bpwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd40109bpwr.step / cd40109bpwr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cd40109bpwr.step 205 KB You want the bare part, or you mark your own boards.
cd40109bpwr-etched.step 2.8 MB You want the part with CD40109BPWR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 685 faces against 255 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (18 pp, sha256 945f61ad7c94f1e9, retrieved 2026-08-17, tier: manufacturer)
  • 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