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Self Activating Toggle

IP.com Disclosure Number: IPCOM000051690D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10

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Jones, HC [+details]


Fig. 1 shows a self-activating toggle circuit which can be used as a voltage frequency divider or as a counter. It is implemented in the Josephson technology. Data is stored in the latch storage loop, the latch circuit including the AND gate 10 and OR gate 12. The self-gating AND circuit (SGA) detects and outputs the information stored in the latch storage loop. Both the true output and the complement output of the SGA are fed back to the AND gate 10 and OR gate 12. This wiring arrangement causes the data stored in the latch to alternate between binary 0 and binary 1 on successive machine power cycles. When a binary 1 is stored in the latch storage loop, the true output of the SGA at the beginning of the next machine cycle causes the data to be erased.