MC14049UBDR2G from onsemi, in a SOIC-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 pin. Operating range 3.0 V to 18 V (absolute max -0.5 V to +18.0 V).
2	OUTA	output	Buffer A output - inverted logic level of INA. CMOS push-pull output; drives two TTL/DTL loads at VDD = 5 V (VOL <= 0.4 V, IOL >= 3.2 mA).
3	INA	input	Buffer A input. High-impedance CMOS input; VIN may exceed VDD (up to 18 V) enabling high-to-low level translation.
4	OUTB	output	Buffer B output - inverted logic level of INB.
5	INB	input	Buffer B input. High-impedance CMOS input; VIN may exceed VDD.
6	OUTC	output	Buffer C output - inverted logic level of INC.
7	INC	input	Buffer C input. High-impedance CMOS input; VIN may exceed VDD.
8	VSS	power_in	Ground / negative supply reference. All voltages referenced to VSS.
9	IND	input	Buffer D input. High-impedance CMOS input; VIN may exceed VDD.
10	OUTD	output	Buffer D output - inverted logic level of IND.
11	INE	input	Buffer E input. High-impedance CMOS input; VIN may exceed VDD.
12	OUTE	output	Buffer E output - inverted logic level of INE.
13	NC	unconnected	No internal connection. Datasheet states pin 13 is not connected internally; connections to this terminal will not affect circuit operation.
14	OUTF	output	Buffer F output - inverted logic level of INF.
15	INF	input	Buffer F input. High-impedance CMOS input; VIN may exceed VDD.
16	NC	unconnected	No internal connection. Datasheet states pin 16 is not connected internally; connections to this terminal will not affect circuit operation.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-16
Category	Logic
Pins	16

Ordering variants

Same part, different packaging or reel option.

MC14049UBDR2G
MC14049UBDR2GDG
MC14049UBDR2GNLVDR2G
MC14049UBDR2GDTR2G
MC14049UBDR2GNLVDTR2G

CAD (KiCad official)

Symbol: MC14049UBDR2G
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc14049ubdr2g.step`	217 KB	You want the bare part, or you mark your own boards.
`mc14049ubdr2g-etched.step`	3.1 MB	You want the part with `MC14049UBDR2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 777 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: onsemi datasheet (8 pp, sha256 5dcc468a00c33385, 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