DTL internal structure shown in the inverter circuit (M5936P) is. Inputs with diodes, transistors signal processing, power supply is + 5V. When the input terminal A high level
(digital I ) when the diode VDI off, VTI transistor is turned on, the transistor VT2 conduction output is low (digital O ). When the input is low (the number 0 ), the diode VD1 conduction, transistor VT1 off, transistor VT2 off, output high (the number 1 ).