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Contents

README

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24LC256T-I

Microchip Tech · EEPROM · SOIC-8

24LC256T-I from Microchip Tech, 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 input User configurable chip select input that must be connected to VCC or VSS to define the lower bit of the device slave address.
2 A1 input User configurable chip select input that must be connected to VCC or VSS to define the middle bit of the device slave address.
3 A2 input User configurable chip select input that must be connected to VCC or VSS to define the upper bit of the device slave address.
4 VSS power_in Ground connection serving as the negative supply reference and return path for all device currents.
5 SDA bidirectional Bidirectional open-drain serial data line for I2C bus used to transfer addresses and data, requiring external pull-up resistor to VCC (10 kΩ @ 100 kHz, 2 kΩ @ 400 kHz/1 MHz).
6 SCL input Serial clock input for I2C bus used to synchronize data transfer to and from the device.
7 WP input Write protect input that enables write operations when connected to VSS or inhibits write operations when connected to VCC.
8 VCC power_in Positive supply voltage with operating range of +2.5V to +5.5V for this 24LC256 device variant.

Key specifications

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

CAD (KiCad official)

  • Symbol: 24LC256T-I
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: 24lc256t-i-etched.step / 24lc256t-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 24lc256t-i.step / 24lc256t-i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (26 pp, sha256 f533b23337c99322, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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