CD4049UBM from HGSEMI, in a SOP-16. 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	VDD	power_in	Positive supply voltage. Recommended operating range 5 V to 15 V; absolute maximum -0.5 V to +18 V.
2	G (~A)	output	Inverter 1 output (logical NOT of input A on pin 3). CMOS push-pull output; rated for 12 mA continuous.
3	A	input	Inverter 1 input. High-impedance CMOS input; protection network permits VIN > VDD (recommended VIN 0 V to 15 V).
4	H (~B)	output	Inverter 2 output (logical NOT of input B on pin 5).
5	B	input	Inverter 2 input. High-impedance CMOS input tolerant of VIN > VDD.
6	I (~C)	output	Inverter 3 output (logical NOT of input C on pin 7).
7	C	input	Inverter 3 input. High-impedance CMOS input tolerant of VIN > VDD.
8	VSS	power_in	Negative supply / ground reference. Datasheet notes VSS = 0 V unless otherwise stated.
9	D	input	Inverter 4 input. High-impedance CMOS input tolerant of VIN > VDD.
10	J (~D)	output	Inverter 4 output (logical NOT of input D on pin 9).
11	E	input	Inverter 5 input. High-impedance CMOS input tolerant of VIN > VDD.
12	K (~E)	output	Inverter 5 output (logical NOT of input E on pin 11).
13	NC	unconnected	No internal connection. Leave floating or tie to VSS.
14	F	input	Inverter 6 input. High-impedance CMOS input tolerant of VIN > VDD.
15	L (~F)	output	Inverter 6 output (logical NOT of input F on pin 14).
16	NC	unconnected	No internal connection. Leave floating or tie to VSS.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOP-16
Category	Logic
Pins	16

Ordering variants

Same part, different packaging or reel option.

CD4049UBM/TR
CD4049UBE
CD4049UBN
CD4049UBMT/TR
CD4049UBLQ/TR

CAD (KiCad official)

Symbol: CD4049UBM
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cd4049ubm.step`	217 KB	You want the bare part, or you mark your own boards.
`cd4049ubm-etched.step`	2.4 MB	You want the part with `CD4049UBM` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 610 faces against 267 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 (11 pp, sha256 d1b47e24b0ba71a2, 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