TTL

The abbreviation TTL can refer to:

Time to live for internet packets
Transistor-transistor logic, a class of digital integrated circuits
Through-the-lens measurements in photography
TTL (mobile service), part of Korea's SK Telecom network (see the [TTL Homepage])
Target towing launch, a type of military launch boat

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.