CD4050BM 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 rail. Recommended operating range 5 V to 15 V; absolute maximum -0.5 V to +18 V referenced to VSS.
2	G (1Y)	output	Buffer 1 output (non-inverting). Equal to logic level of input A on pin 3. Drives ~1 mA IOL at VDD=5 V, VO=0.4 V.
3	A (1A)	input	Buffer 1 input. High-voltage tolerant CMOS input (VIN may exceed VDD, up to +18 V absolute max). Non-inverting path to output G on pin 2.
4	H (2Y)	output	Buffer 2 output (non-inverting). Equal to logic level of input B on pin 5.
5	B (2A)	input	Buffer 2 input. High-voltage tolerant CMOS input (may exceed VDD up to +18 V abs max). Feeds output H on pin 4.
6	I (3Y)	output	Buffer 3 output (non-inverting). Equal to logic level of input C on pin 7.
7	C (3A)	input	Buffer 3 input. High-voltage tolerant CMOS input. Feeds output I on pin 6.
8	VSS	power_in	Negative supply / ground reference (0 V). All input/output levels are referenced to this pin.
9	D (4A)	input	Buffer 4 input. High-voltage tolerant CMOS input. Feeds output J on pin 10.
10	J (4Y)	output	Buffer 4 output (non-inverting). Equal to logic level of input D on pin 9.
11	E (5A)	input	Buffer 5 input. High-voltage tolerant CMOS input. Feeds output K on pin 12.
12	K (5Y)	output	Buffer 5 output (non-inverting). Equal to logic level of input E on pin 11.
13	NC	unconnected	No internal connection. Leave floating or tie to VSS/VDD per PCB convention.
14	F (6A)	input	Buffer 6 input. High-voltage tolerant CMOS input. Feeds output L on pin 15.
15	L (6Y)	output	Buffer 6 output (non-inverting). Equal to logic level of input F on pin 14.
16	NC	unconnected	No internal connection. Leave floating or tie to VSS/VDD per PCB convention.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

CD4050BE
CD4050BN
CD4050BM/TR
CD4050BMT/TR
CD4050BLQ/TR

CAD (KiCad official)

Symbol: CD4050BM
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)

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