时钟/计时 - 实时时钟 

A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time.Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.Clock/Timing - Real Time Clocks are in stock at Tenco Electronics. Tenco offers inventory, pricing, & datasheets for Clock/Timing - Real Time Clocks. To know more, please view our large section of Clock/Timing - Real Time Clocks below.