AT24C64-HXY from HXY MOSFET, 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. Sets the LSB of the I2C slave address for hardware addressing (up to 8 devices on one bus). Internally pulled down to Vss if left floating.
2	E1	input	Device address input bit 1. Sets a slave address bit for hardware addressing. Internally pulled down to Vss if left floating.
3	E2	input	Device address input bit 2. Sets the MSB of the hardware-programmable slave address. Internally pulled down to Vss if left floating.
4	Vss	power_in	Ground reference (0 V) for the device.
5	SDA	bidirectional	I2C serial data. Bidirectional, open-drain; requires an external pull-up. May be wire-OR'd with other open-drain/open-collector devices. Max DC output current 5 mA (SDA=0).
6	SCL	input	I2C serial clock input. Positive-edge clocks data in and negative-edge clocks data out. Supports up to 1 MHz (Vcc >= 2.5V) or 400 kHz (Vcc >= 1.7V).
7	WCB	input	Write Control (active-low write enable). Tie to Vss to allow normal write operations; tie to Vcc to inhibit all writes to the memory. Internally pulled down to Vss if left floating.
8	Vcc	power_in	Supply voltage input. Operating range 1.7V to 5.5V (1.8V min for 400 kHz, 2.5V min for 1 MHz). Absolute max 6.5V.

Key specifications

Parameter	Value
Manufacturer	HXY MOSFET
Package	SOP-8
Category	Memory
Pins	8

CAD (KiCad official)

Symbol: AT24C64-HXY
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`at24c64-hxy.step`	122 KB	You want the bare part, or you mark your own boards.
`at24c64-hxy-etched.step`	1.8 MB	You want the part with `AT24C64-HXY` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 464 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: HXY MOSFET datasheet (18 pp, sha256 fa26a1fc0bb5c7ce, 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