24LC64T-E 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	input	Chip address input bit 0. Compared with corresponding bit in the I2C slave address to select one of up to 8 cascaded devices on the same bus. Must be tied to VSS or VCC; do not leave floating.
2	A1	input	Chip address input bit 1. Compared with corresponding bit in the I2C slave address to select one of up to 8 cascaded devices on the same bus. Must be tied to VSS or VCC; do not leave floating.
3	A2	input	Chip address input bit 2. Compared with corresponding bit in the I2C slave address to select one of up to 8 cascaded devices on the same bus. Must be tied to VSS or VCC; do not leave floating.
4	VSS	power_in	Ground reference for logic and I/O.
5	SDA	bidirectional	Serial address/data I/O for the I2C bus. Open-drain output; requires an external pull-up resistor to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for 400 kHz). Data changes only while SCL is low.
6	SCL	input	Serial clock input used to synchronize data transfers to and from the device. Schmitt-trigger input with noise suppression. Up to 400 kHz for 24LC64 (VCC ≥ 2.5V).
7	WP	input	Write-Protect input. Tie to VSS to enable write operations; tie to VCC to inhibit writes (reads unaffected). Must not be left floating.
8	VCC	power_in	Positive supply. 2.5V to 5.5V for the 24LC64 variant. Active write current ≤3 mA, standby ≤1 µA (industrial).

Key specifications

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

Ordering variants

24LC64T-ESN
24LC64T-ET-I/SN
24LC64T-E/SN
24LC64T-EP
24LC64T-EI/P
24LC64T-EE/P
24LC64T-ESM
24LC64T-EST
24LC64T-EX/ST
24LC64T-EMS
24LC64T-EMNY
24LC64T-EMUY
24LC64T-EOT
24LC64T-ECS

CAD (KiCad official)

Symbol: 24LC64T-E
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`24lc64t-e.step`	122 KB	You want the bare part, or you mark your own boards.
`24lc64t-e-etched.step`	1.6 MB	You want the part with `24LC64T-E` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 405 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 (44 pp, sha256 dc1dcd92e1d528e6, 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