SN74LV4052APWR 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	2Y0	bidirectional	Port 2 channel 0 analog switch terminal. Signal path to 2-COM when INH=L and select code B,A=00. Analog signal range 0 to VCC.
2	2Y2	bidirectional	Port 2 channel 2 analog switch terminal. Signal path to 2-COM when INH=L and select code B,A=10. Analog signal range 0 to VCC.
3	2-COM	bidirectional	Port 2 common (pole) terminal. Connects to one of 2Y0-2Y3 depending on the B,A select code when INH is low.
4	2Y3	bidirectional	Port 2 channel 3 analog switch terminal. Signal path to 2-COM when INH=L and select code B,A=11.
5	2Y1	bidirectional	Port 2 channel 1 analog switch terminal. Signal path to 2-COM when INH=L and select code B,A=01.
6	INH	input	Inhibit (enable-bar) input. When INH=H all switches are OFF (high impedance); when INH=L the switch selected by B,A is enabled. Logic-level input referenced to VCC.
7	GND	power_in	Device ground. Also sets the lower rail of the analog switch signal range (VIO min = 0V, i.e. GND).
8	GND	power_in	Device ground (second GND pin). Tie to the same ground plane as pin 7.
9	B	input	Logic input selector B (MSB of the 2-bit channel-select code B,A). Together with A selects one of the four Y channels for each pole.
10	A	input	Logic input selector A (LSB of the 2-bit channel-select code B,A). Together with B selects one of the four Y channels for each pole.
11	1Y3	bidirectional	Port 1 channel 3 analog switch terminal. Signal path to 1-COM when INH=L and select code B,A=11.
12	1Y0	bidirectional	Port 1 channel 0 analog switch terminal. Signal path to 1-COM when INH=L and select code B,A=00.
13	1-COM	bidirectional	Port 1 common (pole) terminal. Connects to one of 1Y0-1Y3 depending on the B,A select code when INH is low.
14	1Y1	bidirectional	Port 1 channel 1 analog switch terminal. Signal path to 1-COM when INH=L and select code B,A=01.
15	1Y2	bidirectional	Port 1 channel 2 analog switch terminal. Signal path to 1-COM when INH=L and select code B,A=10.
16	VCC	power_in	Device power supply, 1.65V to 5.5V. Also sets the upper analog signal rail (VIO max = VCC). Bypass with 0.1 uF close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74LV4052APWR
SN74LV4052APWRD
SN74LV4052APWRDR
SN74LV4052APWRRGY
SN74LV4052APWRRGYR
SN74LV4052APWRDYY
SN74LV4052APWRDYYR

CAD (KiCad official)

Symbol: SN74LV4052APWR
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (43 pp, sha256 d6b3adfc74fd414e, 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