Digital Integrated Circuits

The integrated circuit (IC) and the digital logic families were introduced in Section 2.9. This chapter presents the elmonic circuits in each IC digital logic family and analyzes their electrical operation. A basic knowledge of electrical circuits is assumed. The IC digital logic families to be considered here are RTL Resistor-transistor logic DTL Diodstransistor logic TTL Transistor-bansistor logic ECL Emitter-coupled logic MOS Metal-oxide semiconductor CMOS Complementary metal-oxide semiconductor The first two, RTL and DTL, have only historical significance, since they are no longer used in the design of digital systems. RTL was the first wmmdf dyto have been used extensively. It is included here because it represents a useful starting point for explaining the basic operation of digital gates, DTL circuits have been replaced by TIL h fad, TTL is a modification of the DTL gate. The operation of the lTL gate will b &to mksmd after the DTL gate is analyzed. TI'L, MX, and CMOS have a large af SSI chxh, as well as MSI, LSI, and VLSI components. The basic circuit in each IC digital logic family is a NAND m mm 'hb M dm& is the primary building block from which dl otb,m me re&@d raabtaiaed. Each IC logic family has a data book ahat lists all h htqmkd -in h hdy. Tbe differences in the logic functions available from each fmdy ae not r, dmIIEh w ims du~ 08 – Design at the Register Transfer Level :M. Morris Mano كتاب digital design 4th edition