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docs 24lc04bt-i: 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
24lc04bt-i-etched.fit.json 24lc04bt-i: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
24lc04bt-i-etched.glb 24lc04bt-i: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray
24lc04bt-i-etched.step 24lc04bt-i: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray
24lc04bt-i-ms-hero.glb Publish 0.2.1 · Ray
24lc04bt-i-ms-hero.overlay.json Publish 0.2.1 · Ray
24lc04bt-i-sn-hero.glb Publish 0.2.2 · Ray
24lc04bt-i-sn-hero.overlay.json Publish 0.2.2 · Ray
24lc04bt-i.glb Publish 0.1.0 · Ray
24lc04bt-i.kicad_mod Publish 0.1.0 · Ray
24lc04bt-i.kicad_sym Publish 0.1.0 · Ray
24lc04bt-i.lbr 24lc04bt-i-sn: identity corrected (24LC04BT-I/SN); gate: 24LC04BT-I/SN: 'Plastic Small Outline - Narrow, 3.90 mm Body'… · Ray
24lc04bt-i.step Publish 0.1.0 · Ray
package.json Publish 0.2.3 · 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 Publish 0.2.3 · Ray
README.md 24lc04bt-i-sn: identity corrected (24LC04BT-I/SN); gate: 24LC04BT-I/SN: 'Plastic Small Outline - Narrow, 3.90 mm Body'… · Ray

24LC04BT-I/SN

Microchip · EEPROM · SOIC-8

24LC04BT-I from Microchip, 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 A0 unconnected Not connected internally on the 24XX04. May be left floating or tied to VSS or VCC. Present for pin compatibility with larger 24-series EEPROMs.
2 A1 unconnected Not connected internally on the 24XX04. May be left floating or tied to VSS or VCC. Present for pin compatibility with larger 24-series EEPROMs.
3 A2 unconnected Not connected internally on the 24XX04. May be left floating or tied to VSS or VCC. Present for pin compatibility with larger 24-series EEPROMs.
4 VSS power_in Ground reference for the device (0 V).
5 SDA bidirectional Serial Address/Data I/O. Bidirectional open-drain line for the I2C bus; requires an external pull-up to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for 400 kHz/1 MHz). Data may only change while SCL is low.
6 SCL input Serial Clock input used to synchronize data transfer to and from the device. Driven by the I2C master; the 24XX04 operates as an I2C slave.
7 WP input Write-Protect input. Must be connected to either VSS or VCC. Tied to VSS: normal read/write operation (memory 000-1FF writable). Tied to VCC: entire memory is write-protected; reads are unaffected.
8 VCC power_in Power supply input. Operating range 2.5 V to 5.5 V for the 24LC04B; absolute maximum 6.5 V. Standby current 1 µA typical, active current 1 mA maximum.

Key specifications

Parameter Value
Manufacturer Microchip
Package SOIC-8
Category Memory
Pins 8

Ordering variants

  • 24LC04BT-ISN
  • 24LC04BT-IP
  • 24LC04BT-IMS
  • 24LC04BT-IST
  • 24LC04BT-IMC
  • 24LC04BT-IMNY
  • 24LC04BT-IMUY
  • 24LC04BT-IOT
  • 24LC04BT-ICSP

CAD (KiCad official)

  • Symbol: 24LC04BT-I
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 24lc04bt-i-etched.step / 24lc04bt-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 24lc04bt-i.step / 24lc04bt-i.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
24lc04bt-i.step 122 KB You want the bare part, or you mark your own boards.
24lc04bt-i-etched.step 1.8 MB You want the part with 24LC04BT-I already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 461 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: Microchip datasheet (46 pp, sha256 40bb9334fc46dd10, 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

Other parts in this family

This page is 24LC04BT-I/SN. These part numbers share its family name but are different parts (another package, rating or grade), each with its own page:

  • 24LC04BT-I/MC
  • 24LC04BT-I/MS
  • 24LC04BT-I/OT
  • 24LC04BT-I/ST