Although not labeled the Totem-Pole is formed by the two output transistors. Related page that covers all NOR Gates styles.Īnother example of a 3-input NOR gate with a Totem-Pole Output. The output structure will be some deviation of a Totem-Pole but the actual schematic will change depending upon the Logic Family used.ħ4HC27, 74HCT27, 54HC27, 54HCT27, 54AS27, 54ALS27, 54F27 ![]() The schematic and logic diagram are examples of 3-input NOR gates. ![]() The Totem-Pole is formed by transistors Q1 and Q2. The circuit schematic shown below details the internal structure of a TTL triple input NOR gate with a Totem-Pole Output. As opposed to an Open Collector Output which is always indicated in the title of the data sheet. An IC with a Totem-Pole Output is the default condition. Many ICs use Totem-Pole Outputs, in fact it's so common that the output structure isn't mentioned in the data sheet title. A type of output structure used with integrated circuits in which one transistor drives the output high while another transistor connected below it pulls the output low. ![]() Definition of Technical Terms for Engineers "A" "B" "C",
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