"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Previous set of "T" Abbreviations and Acronyms
| U | - | UnBuffered output [IC] |
| UART | - | Universal Asynchronous Receiver/Transmitter |
| UAS | - | USB Attached SCSI |
| UBD | - | Universal Bus Driver |
| UDIMM | - | UnBuffered DIMM [Memory] |
| UDP | - | User Datagram Protocol [Protocol Acronyms] |
| uF | - | micro Farad, a unit of [Capacitance] |
| UHF | - | ultra high frequency 300MHz - 3GHz |
| UHM | - | Ultra Hard Metric [cPCI Connector] |
| UI | - | Unit Interval |
| UI | - | User Interface |
| UICC | - | Universal Integrated Circuit Card |
| UID | - | Unit Identification IUID |
| UII | - | Unique Item Identifier IUID |
| UJT | - | Uni-Junction Transistor |
| UL | - | Underwriters Laboratories |
| U/L | - | uplink |
| ULF | - | ultra low frequency |
| ULP | - | Ultra Low Profile [DIMM Memory] |
| ULP | - | Upper Level Protocol [ULP Definition] |
| ULPI | - | UTMI+ Low Pin Interface |
| UMPC | - | Ultra Mobile PC |
| UMTS | - | Universal Mobile Telecommunications System |
| UPC | - | Ultra Physical Contact [Fiber] |
| UPS | - | Uninterruptible Power Supply |
| UPT | - | Universal Personal Telecommunications service |
| USART | - | Universal Synchronous/Asynchronous Receiver/Transmitter |
| USB | - | Universal Serial Bus |
| USB | - | upper sideband |
| USIC | - | User Specific Integrated Circuits |
| USIM | - | Universal Subscriber Identity Module |
| USNO | - | U.S. Naval observatory |
| USTA | - | U.S. Telephone Association |
| UT | - | Universal Time |
| UTC | - | Coordinated Universal Time |
| UTF | - | Unicode transformation format |
| UTI | - | Universal Transducer Interface [Sensor Buses] |
| UTMI | - | USB 2.0 Transceiver Macrocell Interface |
| UTP | - | Unshielded Twisted Pair [Definition of Twisted Pair] |
| UUT | - | Unit Under Test [UUT Example], [Test Acronyms] |
| uv | - | ultraviolet |
| UVLO | - | Undervoltage Lockout |
| UWB | - | Ultra-wideband |
| UXGA | - | Ultra Extended Graphics Array |
Next set of "V" Abbreviations and Acronyms
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