CD4066SA14.TR from Wuxi I core Elec CD4066SA14 TR, in a SOP-14. 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	1Y	bidirectional	Switch 1 independent input or output terminal (bilateral analog switch pin). Signal range V_SS to V_DD; ON resistance ~115 Ω typ at V_DD=5V.
2	1Z	bidirectional	Switch 1 independent input or output terminal (bilateral analog switch pin). Paired with 1Y; conducts when 1E is HIGH.
3	2Z	bidirectional	Switch 2 independent input or output terminal (bilateral analog switch pin). Paired with 2Y; conducts when 2E is HIGH.
4	2Y	bidirectional	Switch 2 independent input or output terminal (bilateral analog switch pin).
5	2E	input	Enable input for switch 2 (active HIGH). HIGH turns switch 2 ON, LOW turns it OFF. V_IH >= 3.5V at V_DD=5V; V_IL <= 1.5V at V_DD=5V.
6	3E	input	Enable input for switch 3 (active HIGH). HIGH turns switch 3 ON, LOW turns it OFF.
7	VSS	power_in	Ground (0 V) reference. All voltages referenced to V_SS.
8	3Y	bidirectional	Switch 3 independent input or output terminal (bilateral analog switch pin).
9	3Z	bidirectional	Switch 3 independent input or output terminal (bilateral analog switch pin). Paired with 3Y; conducts when 3E is HIGH.
10	4Z	bidirectional	Switch 4 independent input or output terminal (bilateral analog switch pin). Paired with 4Y; conducts when 4E is HIGH.
11	4Y	bidirectional	Switch 4 independent input or output terminal (bilateral analog switch pin).
12	4E	input	Enable input for switch 4 (active HIGH). HIGH turns switch 4 ON, LOW turns it OFF.
13	1E	input	Enable input for switch 1 (active HIGH). HIGH turns switch 1 ON, LOW turns it OFF.
14	VDD	power_in	Positive supply voltage. Recommended operating range 3 V to 9 V; absolute maximum +12 V. Typical I_DD < 1 uA at V_DD=5V.

Key specifications

Parameter	Value
Manufacturer	Wuxi I core Elec CD4066SA14 TR
Package	SOP-14
Category	Interface
Pins	14

Ordering variants

Same part, different packaging or reel option.

CD4066SA14.TB
CD4066SA14.TR
CD4066DA14.TB
CD4066TA14.TB
CD4066TA14.TR

CAD (KiCad official)

Symbol: CD4066SA14.TR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Wuxi I core Elec CD4066SA14 TR datasheet (14 pp, sha256 b9fd2fad611505f5, retrieved 2026-08-17, tier: lcsc)
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