5V logic pulser is battery-powered

  
A battery-powered, pushbutton-triggered TTL/CMOS-compatible source of debounced 5V logic pulses is a simple but handy piece of test equipment to have in any tool kit (Figure 1). The circuit`s battery-powered operation complicates what would otherwise be a trivial exercise in switch-bounce and timing-circuit design. The convenient use of battery power simultaneously imposes two requirements: near-zero quiescent-current draw and input-variation-tolerant voltage regulation.
5V logic pulser is battery-powered - schematic




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