Digital Stopwatch 4 Digits

Wednesday, April 13th, 2011 - Digital, Test & Measurement

Digital Stopwatch in this article are manufactured using a source clock of timer IC 555 and to process the timing performance using the IC 74C926. IC 74C926 is a 4-digit counter with output latches are installed internally to the output viewer 7 segment and for the output driver NPN transistor to control the viewer komon 7 segment cathode. penampilanan engineering data by the IC 74C926 done multiplexing to 4 pieces a viewer in control 7 segment through NPN transistor. The beating of the Stop Watch Digital built using a 555 timer IC dseting has output that can be set to tap the Stop Watch Digital is to count time 0.1 seconds and 1 second.

Digital Stopwatch Circuit

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First time Digital Stopwatch series will use our Digital Stopwatch reset by pressing the S3 (Reset switch) that will display data layaf 0000. Then to start doing the counting is done by pressing the S2 (button start / stop) and to stop the counting process is done by pressing the Digital Stopwatch S2 button (button start / stop) on Digital Stopwatch. Then to choose the time counting on Digital Stopwatch series is provided by 2 votes counting time 0.1 seconds and 1 second to choose from dengang S1 on Digital Stopwatch.

Digital Stopwatch 4 Digits | admin | 4.5