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FSW6820YQFN40G

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Full Way Analog Switches, Multiplexers, QFN-40L-EP(5x5). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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FSW6820YQFN40G

Full Way · Analog Switches, Multiplexers · QFN-40L-EP(5x5)

FSW6820YQFN40G from Full Way, in a QFN-40L-EP(5x5). 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 EN1 input Enable pin, active low. Controls channels 1 (Super Speed port A/B/C signals). Internal 2 MOhm pull-up resistor. When high, device is in shutdown/power-down.
2 SEL1 input Select pin. Along with SEL2 selects which of the 4 differential channels is routed to COM. Internal 2 MOhm pull-down resistor.
3 COMAN bidirectional Negative differential signal 1 for USB 3.1 port COM. Common port A negative, connects to selected DA1N/DB1N/DC1N.
4 COMAP bidirectional Positive differential signal 1 for USB 3.1 port COM. Common port A positive, connects to selected DA1P/DB1P/DC1P.
5 COMBN bidirectional Negative differential signal 2 for USB 3.1 port COM. Common port B negative.
6 COMBP bidirectional Positive differential signal 2 for USB 3.1 port COM. Common port B positive.
7 COMCN bidirectional Negative differential signal 3 for USB 2.0 port COM. Common port C (USB 2.0 DM) negative.
8 COMCP bidirectional Positive differential signal 3 for USB 2.0 port COM. Common port C (USB 2.0 DP) positive.
9 DC4N bidirectional Negative differential signal 4 for USB 2.0 port C. Channel 4 USB 2.0 DM.
10 DC4P bidirectional Positive differential signal 4 for USB 2.0 port C. Channel 4 USB 2.0 DP.
11 DC3N bidirectional Negative differential signal 3 for USB 2.0 port C. Channel 3 USB 2.0 DM.
12 DC3P bidirectional Positive differential signal 3 for USB 2.0 port C. Channel 3 USB 2.0 DP.
13 VCC power_in Positive supply voltage. Operating range 1.8V to 4.5V (typical 3V). Absolute max -0.5V to +5.5V.
14 EN3 input Enable pin, active low. Internal 2 MOhm pull-up resistor. When high, device is in shutdown/power-down.
15 DB4P bidirectional Positive differential signal 4 for USB 3.1 port B. Channel 4 SuperSpeed port B positive.
16 DB4N bidirectional Negative differential signal 4 for USB 3.1 port B. Channel 4 SuperSpeed port B negative.
17 DA4P bidirectional Positive differential signal 4 for USB 3.1 port A. Channel 4 SuperSpeed port A positive.
18 DA4N bidirectional Negative differential signal 4 for USB 3.1 port A. Channel 4 SuperSpeed port A negative.
19 DB3P bidirectional Positive differential signal 3 for USB 3.1 port B.
20 DB3N bidirectional Negative differential signal 3 for USB 3.1 port B.
21 DA3P bidirectional Positive differential signal 3 for USB 3.1 port A.
22 DA3N bidirectional Negative differential signal 3 for USB 3.1 port A.
23 DB2P bidirectional Positive differential signal 2 for USB 3.1 port B.
24 DB2N bidirectional Negative differential signal 2 for USB 3.1 port B.
25 DA2P bidirectional Positive differential signal 2 for USB 3.1 port A.
26 DA2N bidirectional Negative differential signal 2 for USB 3.1 port A.
27 VCC power_in Positive supply voltage. Operating range 1.8V to 4.5V (typical 3V).
28 GND power_in Power ground reference.
29 DC2P bidirectional Positive differential signal 2 for USB 2.0 port C. Channel 2 USB 2.0 DP.
30 DC2N bidirectional Negative differential signal 2 for USB 2.0 port C. Channel 2 USB 2.0 DM.
31 DC1P bidirectional Positive differential signal 1 for USB 2.0 port C. Channel 1 USB 2.0 DP.
32 DC1N bidirectional Negative differential signal 1 for USB 2.0 port C. Channel 1 USB 2.0 DM.
33 DB1P bidirectional Positive differential signal 1 for USB 3.1 port B.
34 DB1N bidirectional Negative differential signal 1 for USB 3.1 port B.
35 DA1P bidirectional Positive differential signal 1 for USB 3.1 port A.
36 DA1N bidirectional Negative differential signal 1 for USB 3.1 port A.
37 EN2 input Enable pin, active low. Internal 2 MOhm pull-up resistor. When high, device is in shutdown/power-down.
38 SEL2 input Select pin. Along with SEL1 selects which of the 4 differential channels is routed to COM. Internal 2 MOhm pull-down resistor.
39 VCC power_in Positive supply voltage. Operating range 1.8V to 4.5V (typical 3V).
40 GND power_in Power ground reference.

Key specifications

Parameter Value
Manufacturer Full Way
Package QFN-40L-EP(5x5)
Category Interface
Pins 40

Ordering variants

Same part, different packaging or reel option.

  • FSW6820YQFN40G/TR

CAD (KiCad official)

  • Symbol: FSW6820YQFN40G
  • Footprint: Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm
  • 3D model: QFN-40L-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: fsw6820yqfn40g-etched.step / fsw6820yqfn40g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fsw6820yqfn40g.step / fsw6820yqfn40g.glb are the bare package body.

Provenance

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

  • Datasheet: Full Way datasheet (12 pp, sha256 49d9fe9fd81f9432, 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