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Simple High speed data switch

This circuit is a small representation of a very low cost printer sharer i made very long ago. This ...
 

Running Lights

The 555 Astable generates a clock for this circuit, an oscillator giving a square wave output at pin...
 

Differential to TTL converter

Some outputs are via Dual Differential Line Driver type DS8830. This device will interface with stan...
 

Simple Digital Counter

The basic digital circuits are Flip Flop and Counter, both are here. This circuit can be cascaded to...
 

Frequency Divider

U1 7555 is a CMOS version of 555. The 555 here is in Astable Oscillator mode, C1 and C4 are decoupli...
 

Crystal Oscillator

74HCU04 is a chip that was made for this purpose, HCT may not work for such a circuit. C1 and C2 ca...
 

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