CD4011BM from HGSEMI, in a SOIC-14. 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	I1	input	Gate 1 input A. CMOS logic input; VIL max 1.5 V @ VDD=5 V, VIH min 3.5 V @ VDD=5 V. Input leakage <=0.3 uA typ at VDD=15 V.
2	I2	input	Gate 1 input B. CMOS logic input paired with I1; NANDed to produce O1.
3	O1	output	Gate 1 buffered NAND output = NAND(I1, I2). VOH >= VDD-0.05 V, VOL <= 0.05 V at
4	O2	output	Gate 2 buffered NAND output = NAND(I3, I4). Buffered CMOS output.
5	I3	input	Gate 2 input A. CMOS logic input.
6	I4	input	Gate 2 input B. CMOS logic input paired with I3.
7	VSS	power_in	Ground / negative supply reference (0 V). All input logic levels referenced to VSS.
8	I5	input	Gate 3 input A. CMOS logic input.
9	I6	input	Gate 3 input B. CMOS logic input paired with I5.
10	O3	output	Gate 3 buffered NAND output = NAND(I5, I6).
11	O4	output	Gate 4 buffered NAND output = NAND(I7, I8).
12	I7	input	Gate 4 input A. CMOS logic input.
13	I8	input	Gate 4 input B. CMOS logic input paired with I7.
14	VDD	power_in	Positive supply. Recommended VDD = 3 V to 15 V; absolute max -0.5 V to +18 V. Quiescent current IDD <= 7.5 uA at VDD=5 V (25 degC).

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

CD4011BM/TR
CD4011BMBE
CD4011BMBN
CD4011BMT/TR

CAD (KiCad official)

Symbol: CD4011BM
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cd4011bm.step`	195 KB	You want the bare part, or you mark your own boards.
`cd4011bm-etched.step`	1.9 MB	You want the part with `CD4011BM` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 501 faces against 237 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: HGSEMI datasheet (10 pp, sha256 5f5ccfab60c3ae62, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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