component

AT24C256CDRG

Public Made by Adom

by adom

HANSCHIP semiconductor EEPROM, SOP-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 at24c256cdrg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers at24c256cdrg: viewers · Ray 1mo ago
at24c256cdrg-etched.fit.json at24c256cdrg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
at24c256cdrg-etched.glb at24c256cdrg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
at24c256cdrg-etched.step at24c256cdrg: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
at24c256cdrg.glb Publish 0.1.0 · Ray 1mo ago
at24c256cdrg.kicad_mod Publish 0.1.0 · Ray 1mo ago
at24c256cdrg.kicad_sym Publish 0.1.0 · Ray 1mo ago
at24c256cdrg.lbr Publish 0.1.0 · Ray 1mo ago
at24c256cdrg.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 12d ago
README.md at24c256cdrg: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 18d ago

AT24C256CDRG

HANSCHIP semiconductor · EEPROM · SOP-8

AT24C256CDRG from HANSCHIP semiconductor, in a SOP-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 E0 input Device Address Input bit 0. Hard-wired to VCC or GND to set the least-significant bit of the I2C 7-bit slave address, allowing up to eight devices on the same bus.
2 E1 input Device Address Input bit 1. Hard-wired to VCC or GND to set an address bit of the I2C 7-bit slave address.
3 E2 input Device Address Input bit 2. Hard-wired to VCC or GND to set an address bit of the I2C 7-bit slave address.
4 GND power_in Ground reference for the power supply. Must be connected to system ground.
5 SDA bidirectional Serial Data. Open-drain bidirectional I2C data line used to serially transfer data to and from the device. Requires an external pull-up resistor to VCC. Includes Schmitt-trigger and spike suppression filtering.
6 SCL input Serial Clock. Master-driven clock input used to control the flow of data. Data on SDA is latched on the rising edge and clocked out on the falling edge of SCL. Supports 400 kHz and 1 MHz operation.
7 WP input Write Protect. When tied to VCC the entire memory array (and Identification Page) becomes read-only; when tied to GND or left floating, write operations are enabled. Driving WP high during a write causes data bytes not to be acknowledged.
8 VCC power_in Device Power Supply. Operating range 1.7 V to 5.5 V. Operations at invalid VCC voltages may produce spurious results and should not be attempted.

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package SOP-8
Category Memory
Pins 8

Ordering variants

  • AT24C256CDRG
  • AT24C256CDRG4
  • AT24C256CDRGCPG
  • AT24C256CDRGCDGKRG
  • AT24C256CDRGCPWRG

CAD (KiCad official)

  • Symbol: AT24C256CDRG
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: at24c256cdrg-etched.step / at24c256cdrg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at24c256cdrg.step / at24c256cdrg.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
at24c256cdrg.step 122 KB You want the bare part, or you mark your own boards.
at24c256cdrg-etched.step 2.5 MB You want the part with AT24C256CDRG already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 606 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: HANSCHIP semiconductor datasheet (25 pp, sha256 15b5ab05a811009e, retrieved 2026-08-17, tier: lcsc)
  • 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