ICs come in both “linear” and “digital” forms. An IC can be made fully functional by wiring it to a suitable power supply and connecting various pins to appropriate external input, output, and auxiliary networks. Digital Logic IC BasicsĪn IC can be described as a complete electronic circuit or “electronic building block,” integrated into one or more semiconductor slices (or “chips”) and encapsulated in a small, multi-pin package. This opening article concentrates on digital logic IC basics. This four-part mini-series explains the basic principles and usage rules of each of these three digital logic families, and provides practical usage guidance for the vast range of ICs available in each of these families. Each of these families has its own particular advantages and disadvantages, and its own special set of usage rules.
Modern digital logic ICs are widely available in three basic types: TTL devices (typified by the 74LS00 logic family), “slow” CMOS devices (typified by the “4000” logic family), and “fast” CMOS devices (typified by the 74HC00 and 74AC00 logic families).
0 kommentar(er)
