2023年5月31日 · USB 1.1, sometimes called Full Speed USB, is a Universal Serial Bus (USB) standard, released in August 1998. The standard has been all but replaced by newer standards like USB 2.0, USB 3.0, and USB4. There are actually two different "speeds" at which a USB 1.1 device can run at: Low Bandwidth at 1.5 Mbps or Full Bandwidth at 12 Mbps.

Universal Serial Bus (USB) is an industry standard, developed by USB Implementers Forum (USB-IF), that allows data exchange and delivery of power between many types of electronics.

Universal Serial Bus Specification Revision 1.1 ii Scope of this Revision The 1.1 revision of the specification is intended for product design. Every attempt has been made to ensure a

2022年9月27日 · Two years later in 1998, USB 1.1 was introduced. While it matched the data transfer capabilities of USB 1.0, it could also operate at slower speeds for lower bandwidth devices. Given the branding Full Speed, USB 1.1 was famously adopted by Apple’s iMac G3, which discontinued the use of serial and parallel ports.

2022年10月7日 · USB Type-A connectors may support USB 1.1, USB 2 or USB 3.x in 5 or 10 Gbps varieties, but this all depends on what the device or cable supports. USB 3.x ports are sometimes blue and...

2018年8月20日 · USB 1.1 was developed as an inexpensive means for serial data transfer between a host computer and external devices. The device-end physical interface can be very low cost and is often integrated into the device’s microcontroller.

2023年8月31日 · A compatibility chart for USB connectors, detailing which USB 3.2, USB 2.0, or USB 1.1 plugs are physically compatible with which USB receptacles.

USB 2.0 specification (ZIP 9.17 MB) is the current USB standard, allowing higher speeds and more functionality than USB 1.1. If you are developing USB devices, please check the developer documents page at www.usb.org to see of there are any updates or errata after February 2004.

USB 1.1: Released in August 1998, USB 1.1 was an incremental update to USB 1.0, offering a data transfer rate of up to 12 Mbps. This increase in speed made it more practical for tasks like transferring documents and small multimedia files. USB 1.1 also introduced support for hubs and devices with multiple interfaces. USB 2.0:

A number of extensions to the USB Specifications have progressively further increased the maximum allowable V_BUS voltage: starting with 6.0 V with USB BC 1.2, [43] to 21.5 V with USB PD 2.0 [44] and 50.9 V with USB PD 3.1, [44] while still maintaining backwards compatibility with USB 2.0 by requiring various forms of handshake before ...