24C16BN from XBLW 24C16BN XBLW, 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	NC	unconnected	No connect. 24C16 does not use any device address pins, so on the 8-lead DIP/SOP/MSOP/TSSOP package pins 1-3 are unused and may be left floating or tied to GND.
2	NC	unconnected	No connect. Unused on the 8-lead SOP variant; leave floating or tie to GND.
3	NC	unconnected	No connect. Unused on the 8-lead SOP variant; leave floating or tie to GND.
4	GND	power_in	Ground reference for the device.
5	SDA	bidirectional	Serial data input / open-drain output for the two-wire (I2C-compatible) bus. Requires an external pull-up resistor to VCC (typ. 4.7 kOhm). Can be wire-ORed with other open-drain outputs. Schmitt-trigger filtered input.
6	SCL	input	Serial clock input for the two-wire (I2C-compatible) bus. Rising edge latches data into the EEPROM; falling edge clocks data out. Requires an external pull-up resistor to VCC. Bus rates up to 1 MHz (VCC >= 2.5 V) or 400 kHz (VCC = 1.8 V).
7	WP	input	Write Protect. Tie to VIL (or GND) to allow programming of the EEPROM array; tie to VIH (or VCC) to disable all write/programming operations. Read operations are unaffected. Internally recognized as VIL if left floating, but the datasheet recommends always driving WP to a known state (pull-up/down resistor <=10 kOhm) to avoid capacitive coupling issues.
8	VCC	power_in	Positive power supply, 1.8 V to 5.5 V. Standby current typically 0.02 uA @ 1.8 V and 0.06 uA @ 5.5 V. Decouple with a 0.1 uF ceramic capacitor close to the pin.

Key specifications

Parameter	Value
Manufacturer	XBLW 24C16BN XBLW
Package	SOP-8
Category	Memory
Pins	8

Ordering variants

24C16BN
24C16BNN
24C16BNMN
24C16BNTN
24C16BNDN
24C16BND6
24C16BNS

CAD (KiCad official)

Symbol: 24C16BN
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
`24c16bn.step`	122 KB	You want the bare part, or you mark your own boards.
`24c16bn-etched.step`	1.6 MB	You want the part with `24C16BN` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 404 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: XBLW 24C16BN XBLW datasheet (20 pp, sha256 cd886c4c7b15f274, 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