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Macintosh Picture Format  |  1991-07-12  |  4.5 KB  |  540x720  |  1-bit (2 colors)  |  [PICT/MDRW]
   ocr: 555 timer circuits Basic Ahe (+5to+15volts) 1K < R < 10 WVYVY monostable t circuit 3 555 Monostable pulse out timer L D - - 2 Trigger 5 1 pulsein .01uft Vcc (+5to+15volts) Basiç R1 astable W circuit t2 7 8 t1 3 R25 555 outputwaverorm timer 2 t1: = U./(R1+RZ)C - t2=0.7(R2)C (Top View) pin 11 pin 14 pin 11 pin 8 556 555 pin 40 pin 5 pin 70 I pin 8 Pin out of 555 Timer Pin out of 556 Dual Timer