Programmable control circuit for controlling the on- off operation of an indicator device

Abstract From the Canadian patent

Although TTL-PROMs possess many advantages over their CMOS-PROM counterparts, their use in controlling on-off operations of indicators such as flashing navigational lights has been limited when battery power is required due to the high power consumption of such TTL-PROMs. Accordingly, a programmable control circuit is provided which includes a TTL-PROM together with a plurality of lower power consumption CMOS units and which minimizes the power consumption of the TTL-PROM. The TTL-PROM has a plurality of memory cells programmed with a plurality of code words. A CMOS addressing means is coupled to this PROM to generate address words to address the memory cells. This addressing serves to …