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Hi can someone help me on building a simple up down counter.. I am using cd4510 so is it requred to use cd4511 as the decoder to 7 segment and is it possible to use ldr as my input instead of switch?if i use hcf4510 does it work well with 74ls47?
there was a simple reason why there shouldn't be mixed threshold levels in the digital signal path . . . some of whitch may have been
driving power hungry logic from weak power cmos output just fails (threshold-level independent) coz F̅·dt=d(m̅·v̅) , A=U·dq=F·dr·dq=E=P·dt=m·c² from where P=f·A=f·q·U=f·F·dr e.g. the more power is required to 1) complete work "A" faster , 2) to complete more work "A" in given time "t"=N·dt=1/"f" , 3) to transfer more charge - "q" (electrons) , 4) change current "I"·dt="q" at greater slope (if ← dt is fixed then the greater the q the greater the I) , 5) change voltage "U" at greater slope , 6) move anything around "F·dr" faster as F̅·dt=d(m̅·v̅) -- the grater the "F" the greater the speed "v" or it's mass "m" or then move anything around "F·dr" further as -- the grater the distance "r" the more power it takes to transfer it there ...