💋 👩🏾‍⚖️ 💯 How to start using USB Type-C in your designs 🖼️ 🤴🏼 🎒

Modern embedded devices use a huge number of different connectors, such as USB Type-B, miniUSB, microUSB and so on. They all differ in form factor, maximum throughput and various other characteristics. The most correct solution in this situation would be to minimize the number of connectors used and dwell on one, the "one" for most developments. The most promising is the use of Type-C connector. It combines incredible bandwidth with high power output. Manufacturers such as Apple, Huawei, Sony are already introducing Type-C connectors in their designs, gradually abandoning the use of "old" connectors. And what is worse for embedded developers?

, Type-C. embedded, , - .

Type-C?

, , USB4, Thunderbolt 3 (TBT3), DisplayPort 2.0 (DP) ( USB Type-C), , Type-C, . , «», .

Type-C, .

Type-C :

VBUS –

: : 5 – 500 (2,5 ) 20 – 5 (100 ). 20 , . , 5 , Power Delivery (PD). , -, 15 (5 – 3 ). embedded-, , , (15 ) - .
Power Delivery (PD) – , «/» , . .

PD – 15 (U = 5 , I = 3 );
PD – 100 (U = 20 , I = 5 A).

CC1/CC2 – Configuration Channel (CC)

: . , , (Vconn) . PD . , PD, : , .

Vconn – 5 ;
Vconn – 200 ;
– 0–5 ;
– 400 ( PD).

SBU1/SBU2 – Sideband Use (Auxiliary Signal Pins)

: . , USB2/3.2 . USB4 , . DP AUX-. ( ) , «».

USB4 – (Serial Port) 1 /c;
DisplayPort – 720 /c. , , (TX1± TX2± RX1± RX2±). AUX- , ;
A – [-0,3–3,3 ].
USB2/3.2 – ;

D+/D- – Data (USB2.0)

: USB 2.0. . , USB3.2/USB4/TBT3/DP . , USB2.0 . .

USB 2.0 – 480 /c;
A – [-3,0–3,0 ].
USB3.2/USB4/TBT3/DP – ;

TX1± TX2± RX1± RX2± – Data (USB3.2/USB4/TBT3/DP)

: , . . USB4/TBT3/DP ( Simplex). , .

USB3.2 Gen 1 / Gen 2 – (TX1/RX1 TX2/RX2) . 5 /c (Gen1) 10 /c (Gen2) ;
USB3.2 Gen 2 x 2 – (TX1/RX1 TX2/RX2).
, USB3.X , .
USB4/TBT3/DP – (TX1/RX1 TX2/RX2). 20 /c. 40 /c ( ) 80 / .
USB 2.0 – ;

active cable ( ) . , PD , , SOP (Start of packet), , PD, ( ).

A cable with a USB Plug on each end at least one of which is a Cable Plug supporting SOP’, that also incorporates data bus signal conditioning circuits...

Type-C , , .

Active cables are USB Full-Featured Type-C Cables that incorporate repeaters in the USB 3.2 data path. All active cables, regardless of length, are expected to comply with this specification, the USB 3.2...

Type-C (Emark), SOP, , .

ReTimer () ReDriver () – , . . : , / ( ).

. . , . , – , . – , . , .

, , . , :

USB2.0 (480 /c) ~ 4 ;
USB3.2 Gen1 (10 /c) ~ 2 ;
USB3.2 Gen2 (20 /c) ~ 1 ;
USB4/TBT3 (40 /c) ~ 0.8 .

, 0,8 . ( ) ~ 0,3 .

Optically Isolated Active (OIA). 50 , , USB3.2/TBT3. SOP . , RX/TX, USB2.0 . , Vconn . OIA- USB4.

, , TBT3-, , ( 0,8 ).

. Type-C :

USB Type-C – USB3.1 Type-A / Type-B / Type micro-B;
USB Type-C – USB2.0 Type-A / Type-B / Type mini-B / Type micro-B.

Type-C.

(plug) (receptacle):

USB2.0 (D+/D-) A6–A7, B6–B7 – . , . A6–A7 .
CC1/CC2 , CC (A5) Vconn (B5). CC PD. Vconn . , Vconn .

, , . embedded- USB2/USB3, .

, USB , , .

. , .

! , , Part Status. Active, . , , .

. , , RX/TX- (USB3.2/USB4/TBT3/DP), , 16 :

24 – ;
16/14 – , (TX1± TX2± RX1± RX2±), USB 2.0, PD . : CX90M-16P Hirose Connector.

. , .

:
- Surface Mount / – . : CX90B1-24P Hirose Connector;
- Board Cutout / – . : CX90M-16P Hirose Connector.
Surface Mount /

Board Cutout /

:
- Right Angle / – . : CX90B1-24P Hirose Connector;
- Vertical/ – . : CX80B1-24P Hirose Connector;
- Vertical Right Angle / – , . : KUSBX-SL-CS1N14-B Kycon.
Right Angle /

Vertical/

Vertical Right Angle /

:
- – . : 12401544E4#2A Amphenol;
- – . , 16/14 , USB2.0. : KUSBX-SL-CS1N14-B Kycon;
- - – , – . . : 632723300011 Wurth Elektronik.
-

! , .

, . (Ingress Protection), IP65, IPX2 . , . , , - .

IPX7

UFP (Upstream Facing Port) Sink, USB-, - . UFP DFP (Downstream Facing Port) Source- ( ) , .

USB2.0;
USB2/3.2.

USB2.0

A5/B5 (CC1/CC2) (Rd resistor) «» 5,1 ± 20 %, . Rp–Rd . , , CC- , . , USB 2.0, , CC- Rd. Rd , « », . Ra , Rd.
A6–B6 (D+) A7–B7 (D-). .
Type-C , (Shield). «» . . . .
RX1/TX1, RX2/TX2, SBU1/SBU2 , .