DIO3157ESC6 from DIOO, in a SC-70-6. 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	B1	bidirectional	Data port B1. One of the two throw terminals of the SPDT analog switch; connected to the common port A when the control input S is logic high. Signal range 1.65 V to 5.5 V; on-resistance 10 Ω max.
2	GND	power_in	Ground reference for the device. Connect to the system ground plane.
3	B0	bidirectional	Data port B0 (normally connected to A). One of the two throw terminals of the SPDT analog switch; connected to the common port A when the control input S is logic low. Signal range 1.65 V to 5.5 V; on-resistance 10 Ω max.
4	A	bidirectional	Common port of the SPDT switch. Connected to either B0 or B1 depending on the state of S. Features over-voltage tolerance (OVT) and power on/off protection to survive external signal perturbation even when Vcc is removed.
5	VCC	power_in	Supply voltage input. Operating range 1.65 V to 5.5 V (absolute max -0.5 V to +6 V). Quiescent current typically 0.1 µA (1 µA max) at Vcc = 3.6 V.
6	S	input	Digital control input selecting the switch throw. S = 1 connects B1 to A; S = 0 connects B0 to A. VIH ≥ 1.3-2.2 V and VIL ≤ 0.6-1.0 V depending on Vcc; input leakage ±1 µA max.

Key specifications

Parameter	Value
Manufacturer	DIOO
Package	SC-70-6
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

DIO3157ESC6
DIO3157ESC6EST6

CAD (KiCad official)

Symbol: DIO3157ESC6
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: DIOO datasheet (11 pp, sha256 2f0524ed011c3bee, 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