24C64S from XBLW 24C64S XBLW, in a SOT-23-5. 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	SCL	input	Serial clock input for the 2-wire bus. Rising edge latches data into the EEPROM; falling edge clocks data out. Requires an external pull-up resistor (typ. 4.7 kΩ to VCC).
2	GND	power_in	Ground / device 0 V reference.
3	SDA	bidirectional	Serial data line, bi-directional open-drain. Can be wire-OR'd with other open-drain devices. Requires an external pull-up resistor (typ. 4.7 kΩ to VCC).
4	VCC	power_in	Positive supply, 1.8 V to 5.5 V. Decouple locally with a 100 nF ceramic capacitor to GND.
5	WP	input	Write-Protect input. Tie to GND (or leave open - internally pulled to VIL) to allow programming; tie to VCC / VIH to disable all write operations. Read operations are unaffected by WP state.

Key specifications

Parameter	Value
Manufacturer	XBLW 24C64S XBLW
Package	SOT-23-5
Category	Memory
Pins	5

Ordering variants

24C64SS
24C64SN
24C64SBN
24C64SMN
24C64STN
24C64SDN
24C64SD6

CAD (KiCad official)

Symbol: 24C64S
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`24c64s.step`	85 KB	You want the bare part, or you mark your own boards.
`24c64s-etched.step`	1.4 MB	You want the part with `24C64S` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 349 faces against 102 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: XBLW 24C64S XBLW datasheet (18 pp, sha256 c0329401d1e9b2e0, 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