ocr: Vcc Control Voltage Bipolar 555 timer Page 4 Comparator R V - Ref A Reset Threshold- R Comparator R Trigger Discharge 777 Flip-Flop Output Stage 777 Output Ground C-MOS555 timer Vcc Reset OR Comparator A Output Drivers Threshold- > - - L Output Control Voltage - OR Discharge Trigger - - flip- OR Comparator B flop -Ground
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