It used to delay the monostable multivibrator circuit diagram of a continuous sequence

Dual Timer Exar XR-2556 for the first time after the timing of the output can be triggered by capacitive coupling second timing pin. When the trigger input is used, in order to

be able to equal the duration T1 1.1R1C1, output 1 will be increased, then decreased by CC-shot timer 2. Pin 13 is then also increased its duration T2 equal 1.1R2C2, its function and delay monostable multivibrator function is the same. Supply voltage 4.5-16V. R can keep the timing of the supply voltage output below 200mA.

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