TTL technology and the 7400 family have been largely obsolete since the 1990s, replaced by complementary metal oxide silicon and other low-power, high-density and high-speed IC technologies. However, the fundam
“Surface mount technology” (SMT) is a way to put together electronic parts by putting them directly on the surface of a printed circuit board (PCB). These parts are also known as “surface mount devices” (PCB). SMT is in high demand in the market because of its low cost and excelle...
My main concern with making an entire computer of this complexity out of jellybean parts is the cost. Not just components, but the sheer size of it to fit all the glue logic in would mean the PCB would be quite large. Using a CPLD (I’m an Altera MAX series fan, but flexible I gu...
Packages for integrated circuits come in a range of sizes. How much connectivity is needed will determine which package to choose. Many devices, such as basic logic chips, may only need 14 or 16 pins, but others, such as VLSI processors and accompanying circuits, may need 200 or mor...