كتاب 12 – Standard Graphic Symbols BY :M. Morris Mano

12 – Standard Graphic Symbols BY :M. Morris Mano Chapter 12 Standard Graphic Symbols 12.1 RECTANGULAR-SHAPE SYMBOLS Digital components such as gates, decoders, multiplexers, and registers are available commercially in integrated circuits and ue classified as SSI or MSI circuits. Standard graphic symbols have been hveloped for these and other components so that the user can recognize each function from the unique graphic symbol assigned to it, This standard, known as ANSVIEEE Std. 9 1 - 1984, has been approved by industry, government, and professional organizations and is consistent with international standards. The standard uses a rectangular-shape outline to represent each particular logic function. Within the outline, there is a general qualifying symbol denoting the logical operation performed by the unit. For example, the general qualifying symbol for a multiplexer is MUX. The size of the outline is arbitrary and can be either a square or a rectangular shap with m arbitrary length-width ratio. Input lines are placed on the left and output lines are placed on tbe rigk If the direction of signal flow is reversed, it must be indicated by amws. The rectangular-shape graphic symhls for SSI gates are shown in Fig. 12 1. The pualifying symbol for the AND gate is the ampersand (&I. The OR gate has h qualifying symbolthat k+ ignates great.terthanorequalto 1,indicatingthatatleastoneinpPtmastk~fmtka#mt to be active. The symbol for the buffer gate is 1. showing hat& -iqpllC Lw'Ibeaclusive- OR symbol designates tbe fzathatdy cm ingrrtmwtberriRbPrtkqmbctive. The inclusion of the logic ntgaih small ckk in tbe ollrpll -e ID W complement values. Although he -- sgmbolt ehbJPrA.L * standard also recognizes the dis-vbshspc syddsh lb pllni&25 - An example of an MSI standard graphic symbol is tb vrdda m Fig. 12.2, The qualifying symbol formaddais -GnakW-mfm the arithmetic operands are P and Q. 'Ihe bit-& e-w dmad a
إم موريس مانو - ❰ له مجموعة من الإنجازات والمؤلفات أبرزها ❞ Introduction Digital Design M. Morris Mano ❝ ❞ Solution Manual – Digital Design 4th Ed - MorrisMano P1-P294 ❝ ❞ 02 – Boolean Algebra and Logic Gates ❝ ❞ Digital Design With an Introduction to the Verilog HDL FIFTH EDITION ❝ ❞ 10 – Digital Intergrated Circuts BY :M. Morris Mano ❝ ❞ 12 – Standard Graphic Symbols BY :M. Morris Mano ❝ ❞ M. Morris Mano 01 – Digital Systems and Binary Numbers ❝ ❞ 13 – Index BY :M. Morris Mano ❝ ❞ 09 – Asynchronous Sequential Logic :M. Morris Mano ❝ ❱
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