The emitters of both the transistors are connected to the ground terminal. The collector of the NPN transistor is connected to the output terminal, while the collector of the PNP transistor is connected to the Vcc terminal. In the totem pole configuration, both the NPN and PNP transistors are used. Let's understand these configurations in detail. This means that the output can be either of the two configurations. The output of the 74 series of TTL gates is taken from a BST in either totem pole or open collector configuration. Let's discuss the output configuration of 74 series TTL gates in detail. These gates have a specific output configuration, which is taken from a BST (Base Stabilization Transistor). The 74 series of TTL gates are widely used in digital electronics. Output Configuration of 74 series TTL Gates
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