A basic circuit in the DTL logic family is as shown in the figure below. In DTL (Diode transistor logic), all the logic is implemented using diodes and transistors. When either input X or Y is driven HIGH, the corresponding transistor goes to saturation and output Z is pulled to LOW. Below is the example of a few RTL logic circuits.Ī basic circuit of an RTL NOR gate consists of two transistors Q1 and Q2, connected as shown in the figure above. One basic thing about the transistor (NPN), is that HIGH at input causes output to be LOW (i.e. In RTL (resistor transistor logic), all the logic are implemented using resistors and transistors. Diode Logic is used extensively but not in integrated circuits.Diode Logic only permits OR and AND functions.Diode Logic suffers from voltage degradation from one stage to the next.When any diode conducts, output Z goes high. When high is applied to either X or Y, or both X and Y are driven high, the corresponding diode get forward biased and thus conducts. When no input is connected or driven, output Z is low, due to resistor R1. Below is the example of a few DL logic circuits. One basic thing about the diode, is that diode needs to be forward biased to conduct. In DL (diode logic), all the logic is implemented using diodes and resistors.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |