USB Kablo Pini

USB Connectors

4 Pin Male "A" Connector on the cable

4 Pin Female "A" Connector on the computer

4 Pin "B" Male Connector on cable

4 Pin "B" Female Connector on computer

Pin	Name	Description	Color
1	VCC	+5 VDC	Red
2	D-	Data -	White
3	D+	Data +	Green
4	GND	Ground	Black

mini-USB Connectors

5 pin mini-USB plug connector at the peripherals.

5 pin mini-USB jack connector at the controller.

Pin	Name	Description	Color
1	VCC	+5 VDC	Red
2	D-	Data -	White
3	D+	Data +	Green
X	ID	May be N/C, GND or used as an attached device presence indicator (shorted to GND with resistor).
4	GND	Ground	Black

Mainboard USB Connector

10 pin IDC male connector at the motherboard

Pin	Name	Description	Port
1	VCC	+5 VDC	USB 1
3	D0-	Data -
5	D0+	Data +
7	GND	Ground
9	key
2	VCC	+5 VDC	USB 2
4	D1-	Data -
6	D1+	Data +
8	GND	Ground
10	N/C

Features

• True Plug'n'Play.
• Hot plug and unplug
• Low cost
• Easy of use
• 127 physical devices
• Low cost cables and connectors

Uses

• Keyboards, mice, joysticks, modems

Bandwidth

• Full speed: 12 Mbps speed (requires shielded cable)
• Low speed: 1.5 Mbps speed (non-shielded cable)

Definitions

USB Host = The computer, only one host per USB system.
USB Device = A hub or a Function.

Power usage

Bus-powered hubs: Draw Max 100 mA at power up and 500 mA normally.
Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Low power, bus-powered functions: Draw Max 100 mA.
High power, bus-powered functions: Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Self-powered functions: Draw Max 100 mA.
Suspended device: Max 0.5 mA

Voltage

• Supplied voltage by a host or a powered hub ports is between 4.75 V and 5.25 V.
• Maximum voltage drop for bus-powered hubs is 0.35 V from it's host or hub to the hubs output port.
• All hubs and functions must be able to send configuration data at 4.4 V, but only low-power functions need to be working at this voltage.
• Normal operational voltage for functions is minimum 4.75 V.

Shielding

Shield should only be connected to Ground at the host. No device should connect Shield to Ground.

Cable

Shielded:
Data: 28 AWG twisted
Power: 28 AWG - 20 AWG non-twisted

Non-shielded:
Data: 28 AWG non-twisted
Power: 28 AWG - 20 AWG non-twisted

Power Gauge	Max length
28	0.81 m
26	1.31 m
24	2.08 m
22	3.33 m
20	5.00 m

USB Charger

To force charging of your iPod, PSP or any USB device, you have to force high the levels of the data pins 2 (D-) and 3 (D+) by connecting them to a +5V using a 10KOhm resistor.