Transistor-Transistor Logic

Transistor-Transistor Logic (TTL) is a digital logic family that uses bipolar junction transistors to implement logic gates and digital circuits. TTL chips typically operate at 5V supply voltage and provide fast switching speeds with moderate power consumption. This technology was widely used in early computers and digital systems from the 1960s through 1980s, with common IC series like the 74xx family still used today in educational and hobbyist projects.