CD74HC4050PWR from Texas Instruments, in a TSSOP-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	VCC	power_in	Positive supply voltage. 2 V to 6 V operating range; absolute maximum -0.5 V to 7 V.
2	1Y	output	Buffer 1 non-inverting output. Follows the logic level at input 1A, referenced to VCC/GND supply rails.
3	1A	input	Buffer 1 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
4	2Y	output	Buffer 2 non-inverting output. Follows the logic level at input 2A, referenced to VCC/GND supply rails.
5	2A	input	Buffer 2 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
6	3Y	output	Buffer 3 non-inverting output. Follows the logic level at input 3A, referenced to VCC/GND supply rails.
7	3A	input	Buffer 3 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
8	GND	power_in	Ground reference (0 V).
9	4A	input	Buffer 4 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
10	4Y	output	Buffer 4 non-inverting output. Follows the logic level at input 4A, referenced to VCC/GND supply rails.
11	5A	input	Buffer 5 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
12	5Y	output	Buffer 5 non-inverting output. Follows the logic level at input 5A, referenced to VCC/GND supply rails.
13	NC	unconnected	No internal connection. Leave floating or tie as convenient for layout.
14	6A	input	Buffer 6 input. Tolerates input voltages up to 15 V regardless of VCC (level-translation feature).
15	6Y	output	Buffer 6 non-inverting output. Follows the logic level at input 6A, referenced to VCC/GND supply rails.
16	NC	unconnected	No internal connection on the '4050 variant (this pin is used by the '4049 for VCC). Leave floating.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-16
Category	Logic
Pins	16

Ordering variants

Same part, different packaging or reel option.

CD74HC4050PWR
CD74HC4050PWRPWT
CD74HC4050PWRE
CD74HC4050PWRM
CD74HC4050PWRMT
CD74HC4050PWRM96
CD74HC4050PWRNSR
CD74HC4050PWRF3A

CAD (KiCad official)

Symbol: CD74HC4050PWR
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cd74hc4050pwr.step`	205 KB	You want the bare part, or you mark your own boards.
`cd74hc4050pwr-etched.step`	2.8 MB	You want the part with `CD74HC4050PWR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 713 faces against 255 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: Texas Instruments datasheet (11 pp, sha256 fd93e49f9eae7912, retrieved 2026-08-17, tier: manufacturer)
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