SN74LV4052ADR from Texas Instruments, 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	2Y0	bidirectional	Port 2 channel 0 analog switch terminal. Connects to 2-COM when A=0, B=0 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
2	2Y2	bidirectional	Port 2 channel 2 analog switch terminal. Connects to 2-COM when A=0, B=1 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
3	2-COM	bidirectional	Port 2 common channel. Routed to one of 2Y0..2Y3 based on the A/B select inputs when INH is low. Bidirectional; when INH is high, all switches are open (high-Z).
4	2Y3	bidirectional	Port 2 channel 3 analog switch terminal. Connects to 2-COM when A=1, B=1 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
5	2Y1	bidirectional	Port 2 channel 1 analog switch terminal. Connects to 2-COM when A=1, B=0 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
6	INH	input	Active-high inhibit input. When high, all analog switches are disabled (high-Z). When low, the A/B select lines determine which Yn is connected to COM. CMOS logic-level input.
7	GND	power_in	Device ground. Also sets the lower rail of the analog switch VIO range (VIO = 0 to VCC).
8	GND	power_in	Device ground (second GND pin). Tie together with pin 7 for lowest impedance return.
9	B	input	Logic input selector B (MSB of the 2-bit channel select). Combined with A, selects which Yn channel is connected to the COM terminal on each port. CMOS logic-level input.
10	A	input	Logic input selector A (LSB of the 2-bit channel select). Combined with B, selects which Yn channel is connected to the COM terminal on each port. CMOS logic-level input.
11	1Y3	bidirectional	Port 1 channel 3 analog switch terminal. Connects to 1-COM when A=1, B=1 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
12	1Y0	bidirectional	Port 1 channel 0 analog switch terminal. Connects to 1-COM when A=0, B=0 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
13	1-COM	bidirectional	Port 1 common channel. Routed to one of 1Y0..1Y3 based on the A/B select inputs when INH is low. Bidirectional; when INH is high, all switches are open (high-Z).
14	1Y1	bidirectional	Port 1 channel 1 analog switch terminal. Connects to 1-COM when A=1, B=0 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
15	1Y2	bidirectional	Port 1 channel 2 analog switch terminal. Connects to 1-COM when A=0, B=1 and INH=0. Bidirectional analog/digital signal path, VIO range 0 to VCC.
16	VCC	power_in	Device power supply, 1.65V to 5.5V recommended (abs max 7.0V). Sets the upper rail of the analog switch VIO range and the CMOS logic-input thresholds.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

SN74LV4052ADRD
SN74LV4052ADR
SN74LV4052ADRPW
SN74LV4052ADRPWR
SN74LV4052ADRRGY
SN74LV4052ADRRGYR
SN74LV4052ADRDYY
SN74LV4052ADRDYYR

CAD (KiCad official)

Symbol: SN74LV4052ADR
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
`sn74lv4052adr.step`	217 KB	You want the bare part, or you mark your own boards.
`sn74lv4052adr-etched.step`	2.7 MB	You want the part with `SN74LV4052ADR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 685 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: Texas Instruments datasheet (41 pp, sha256 b7def37edd210805, 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