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a ripple blanking input (BI)
If you want to erase your writing
Tape-end sensors
Black wire: output signal
74HC595N using serial information then gathers or outputs information in a parallel (multi-pin) format
7421 Dual 4-Input Positive and Gates 4700 uf a ripple blanking input (BI)Introduction : 7421 (Dual 4 Input Positive and Gates )is an IC which contains two independent 4 input AND gate each of which performs the logic AND function. Features : Supply Voltage: 5. 25 V. HIGH Level Input Voltage: 2 V. LOW Level Input Voltage: 0. 8 V. HIGH Level Output Current: 0. 4 ma. LOW Level Output Current : 8 ma. Operating Temperature: 0 ~ 70 C.
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