MC14049BDR2G 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 rail. Operating range 3.0 V to 18 V referenced to VSS. All six inverters share this rail.
2	OUTA	output	Inverter A output. CMOS push-pull; swings VSS to VDD. Sinks 3.2 mA at VOL=0.4 V with VDD=5 V (drives up to 2 TTL loads).
3	INA	input	Inverter A input. Vin may exceed VDD (up to +18 V absolute), enabling high-to-low level translation. VIH ≥ 3.5 V and VIL ≤ 1.5 V at VDD=5 V.
4	OUTB	output	Inverter B output. CMOS push-pull; logical inversion of INB.
5	INB	input	Inverter B input. Vin may exceed VDD for level shifting; high impedance CMOS gate input.
6	OUTC	output	Inverter C output. CMOS push-pull; logical inversion of INC.
7	INC	input	Inverter C input. Vin may exceed VDD for level shifting; high impedance CMOS gate input.
8	VSS	power_in	Ground / negative supply reference. All voltages in the datasheet are referenced to VSS.
9	IND	input	Inverter D input. Vin may exceed VDD for level shifting; high impedance CMOS gate input.
10	OUTD	output	Inverter D output. CMOS push-pull; logical inversion of IND.
11	INE	input	Inverter E input. Vin may exceed VDD for level shifting; high impedance CMOS gate input.
12	OUTE	output	Inverter E output. CMOS push-pull; logical inversion of INE.
13	NC	unconnected	Not connected internally. Datasheet states pins 13 and 16 have no internal connection; leaving them floating or tying them to any level does not affect operation.
14	INF	input	Inverter F input. Vin may exceed VDD for level shifting; high impedance CMOS gate input.
15	OUTF	output	Inverter F output. CMOS push-pull; logical inversion of INF.
16	NC	unconnected	Not connected internally. Datasheet explicitly notes pins 13 and 16 are not connected inside the die.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

MC14049BDR2GDG
MC14049BDR2G
MC14049BDR2GNLV...DR2G
MC14049BDR2GFELG
MC14049BDR2GDTG (14050B only)
MC14049BDR2GDTR2G (14050B only)

CAD (KiCad official)

Symbol: MC14049BDR2G
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
`mc14049bdr2g.step`	217 KB	You want the bare part, or you mark your own boards.
`mc14049bdr2g-etched.step`	2.9 MB	You want the part with `MC14049BDR2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 730 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 be5409591844c2e9, 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