component

MC1455BDR2G

Public Made by Adom

by adom

onsemi Timers / Clock Oscillators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs mc1455bdr2g: 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
mc1455bdr2g-etched.fit.json mc1455bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc1455bdr2g-etched.glb mc1455bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc1455bdr2g-etched.step mc1455bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mc1455bdr2g.glb Publish 0.1.0 · Ray
mc1455bdr2g.kicad_mod Publish 0.1.0 · Ray
mc1455bdr2g.kicad_sym Publish 0.1.0 · Ray
mc1455bdr2g.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
mc1455bdr2g.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 mc1455bdr2g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md mc1455bdr2g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MC1455BDR2G

onsemi · Timers / Clock Oscillators · SOIC-8

MC1455BDR2G from onsemi, in a SOIC-8. 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 GND power_in Ground reference (0 V) for the device.
2 Trigger input Trigger input. A negative pulse below 1/3 VCC on this pin starts the timing cycle by setting the internal flip-flop and driving the Output high.
3 Output output Push-pull output. Swings between approximately 0 V and VCC and can source or sink up to 200 mA to drive loads directly.
4 Reset input Active-low reset. Pulling this pin below ~0.7 V forces the Output low and discharges the timing capacitor regardless of the trigger/threshold state. Tie to VCC when unused.
5 Control Voltage input Control voltage. Directly accesses the 2/3 VCC internal reference node, allowing external modulation of the timing threshold. Typically bypassed to ground with a 10 nF capacitor when not used.
6 Threshold input Threshold input. When the voltage on this pin rises above 2/3 VCC, the internal flip-flop is reset, driving the Output low and turning on the discharge transistor.
7 Discharge output Open-collector discharge output. Connects to the collector of an internal NPN transistor whose emitter is at GND; used to discharge the external timing capacitor during the reset phase of the timing cycle.
8 VCC power_in Positive supply voltage, 4.5 V to 16 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category RTC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • MC1455BDR2G
  • MC1455BDG
  • MC1455BPG
  • MC1455BP1G

CAD (KiCad official)

  • Symbol: MC1455BDR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mc1455bdr2g-etched.step / mc1455bdr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc1455bdr2g.step / mc1455bdr2g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mc1455bdr2g.step 122 KB You want the bare part, or you mark your own boards.
mc1455bdr2g-etched.step 2.3 MB You want the part with MC1455BDR2G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 579 faces against 147 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: onsemi datasheet (11 pp, sha256 26fe4119fe552966, 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