Mandate: Required
Effective Date: March, 2007
- Mini-AB Receptacle
The Mini-AB receptacle has been replaced by the Micro-AB receptacle. - Mini-A Plug
The Mini-A plug has been replaced by the Micro-A plug - Mini-A Receptacle
There is no Micro-A equivalent to the Mini-A receptacle. The Micro-A plug is for use by peripherals dedicated to OTG devices.
The original announcement may be obtained at http://www.usb.org/developers/Deprecation_Announcement_052507.pdf.
Integrators are encouraged to transition their products to the Micro-B connector; however, use of the Mini-B connector is still permitted.
The Micro-USB Specification can be downloaded from the Cable and Connector Approved Class Documents webpage at http://www.usb.org/developers/devclass_docs#approved
Top Mandate: Required
Effective Date: December, 2007
New test is added to Group 8 of the Cable and Connector Class Document:
Cable assemblies that have a MicroUSB or MiniUSB plugs must have the ID pin's resistance to ground verified.
- The MicroUSB A-Plug must have its ID pin 4 grounded with <10 Ohms (Ra_PLUG_ID).
- The MicroUSB B-Plug or a MiniUSB B-plug must have a resistance to ground greater than 1MOhms (Rb_PLUG_ID) on the ID pin. Please note that Rb_PLUG_ID has been changed to 1 MOhms per an Engineering Change Notice (ECN).
In order to receive certification, cable assemblies that implement the MicroUSB or MiniUSB plugs must pass this test. Please see Section 4.2 of the Micro-USB Specification for details.
Top Mandate: Required
Effective Date: December, 2007
USB connectors must contain the exact number of contacts as specified in the USB 2.0 Specification. More or fewer contacts are not permitted. No two contacts may be interconnected (joined, shorted or tied) together with the exception of pins 4 and 5 of the Micro A-plug.
Verification of these compliance rules is to be done in Test Group 7 for connectors. Cable assemblies are to have these rules verified in Test Group 8.
Standard A-series and B-series Connectors:
· Pin Count: 4
· No interconnected pins.
Mini A-series Connectors:
· PROHIBITED
Mini AB-receptacle Connectors:
· PROHIBITED
Mini B-series Connectors:
· Pin Count: 5
· No Interconnected pins.
Micro B-series Connectors:
· Pin Count: 5
· No Interconnected pins.
Micro AB-receptacle Connectors:
· Pin Count: 5
· No Interconnected pins.
Micro A-plug Connector:
· Pin Count: 5
· Pin 4 and Pin 5 may be interconnected with a resistance less than 10 Ohms. No other pins may be interconnected.
Interconnected pins may be verified by using an Ohm meter. The sequence for verifying the pins follows:
|
Pins |
Passing Result |
|
1 - 2 |
Open |
|
1 - 3 |
Open |
|
1 - 4 |
Open |
|
1 - 5 |
Open |
|
1 - Shell |
Open |
|
2 - 3 |
Open |
|
2 - 4 |
Open |
|
2 - 5 |
Open |
|
2 - Shell |
Open |
|
3 - 4 |
Open |
|
3 - 5 |
Open |
|
3 - Shell |
Open |
|
4 - 5 |
Micro A-plug < = 10 Ohms Micro B-plug >= 1 MOhms Mini B-plug >= 1 MOhms Mini and Micro receptacles = Open |
|
4 - Shell |
Open |
|
5 - Shell |
Open |
Top Mandate: Optional
Effective Date: December, 2008
Top Mandate: Required
Effective Date: December, 2009
Top Mandate: Required
Effective Date: October, 2010
SuperSpeed USB cable assemblies must use USB 3.0 connectors only .
- USB 3.0 cable assemblies that implement a USB 3.0 micro series plug: 1 meters maximum length.
- USB 3.0 cable assemblies that do not implement a USB 3.0 micro series plug: 3 meters maximum length.
Top Mandate: Required
Effective Date: May, 2013
Effective immediately, a SuperSpeed USB cable assembly that has at least one micro-USB plug is limited to 1 meter in length and must have a maximum differential insertion loss of 3.5dB.
Reference: "ECN 019 USB.0 MicroB Cable Loss Specification" which is included with the download of the USB 3.0 Specification.
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Engineering and Technical Services Group