MC14504BDR2G 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	VCC	power_in	Input-side supply. Sets the input signal thresholds (TTL or CMOS reference). Operating range 3 to 18 Vdc; absolute max -0.5 to +18 V referenced to VSS.
2	Aout	output	Level-shifted non-inverting output for channel A. Output swing is VSS to VDD; drive capable of two low-power TTL loads or one LS-TTL load.
3	Ain	input	Channel A input. Threshold referenced to VCC (TTL or CMOS depending on MODE). Diode protected to VSS; input must remain within VSS to VDD range.
4	Bout	output	Level-shifted non-inverting output for channel B. Output swing VSS to VDD.
5	Bin	input	Channel B input. Threshold set by VCC and MODE selection. Diode protected to VSS.
6	Cout	output	Level-shifted non-inverting output for channel C. Output swing VSS to VDD.
7	Cin	input	Channel C input. Threshold set by VCC and MODE selection. Diode protected to VSS.
8	VSS	power_in	Negative supply / ground reference for the device. All other voltages are referenced to VSS.
9	Din	input	Channel D input. Threshold set by VCC and MODE selection. Diode protected to VSS.
10	Dout	output	Level-shifted non-inverting output for channel D. Output swing VSS to VDD.
11	Ein	input	Channel E input. Threshold set by VCC and MODE selection. Diode protected to VSS.
12	Eout	output	Level-shifted non-inverting output for channel E. Output swing VSS to VDD.
13	MODE	input	TTL/CMOS mode select. MODE = 1 (VCC) selects TTL input logic levels; MODE = 0 (VSS) selects CMOS input logic levels. Output is always CMOS levels referenced to VDD.
14	Fin	input	Channel F input. Threshold set by VCC and MODE selection. Diode protected to VSS.
15	Fout	output	Level-shifted non-inverting output for channel F. Output swing VSS to VDD.
16	VDD	power_in	Output-side supply. Sets the CMOS output voltage swing. Operating range 3 to 18 Vdc; absolute max -0.5 to +18 V referenced to VSS.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

MC14504BDR2GDG
MC14504BDR2G
MC14504BDR2GDTG
MC14504BDR2GDTR2G
MC14504BDR2GFELG

CAD (KiCad official)

Symbol: MC14504BDR2G
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: onsemi datasheet (7 pp, sha256 8768b6ddaea7ffd1, 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