New PDF release: 64.VLSI Systems

New PDF release: 64.VLSI Systems

By John G. Webster (Editor)

Show description

Read or Download 64.VLSI Systems PDF

Best technique books

New PDF release: IL-8

Interleukin eight (IL-8), a proinflammatory chemokine, is produced by way of quite a few kinds of cells upon stimulation with inflammatory stimuli and exerts a number of services on leukocytes, quite, neutrophils in vitro. fresh experiences exhibit that inhibition of IL-8 features by means of both management of particular antibody or disruption of the gene encoding the IL-8 receptor dramatically lowered neutrophils infiltration into acute infected tissues.

Download e-book for kindle: Introduction to Dynamic Modeling of Neuro-Sensory Systems by Robert B. Northrop

Even supposing neural modeling has a protracted background, lots of the texts to be had at the topic are particularly restricted in scope, dealing essentially with the simulation of large-scale organic neural networks appropriate to describing mind functionality. creation to Dynamic Modeling of Neuro-Sensory platforms offers the mathematical instruments and techniques which may describe and are expecting the dynamic habit of unmarried neurons, small assemblies of neurons dedicated to a unmarried initiatives, in addition to greater sensory arrays and their underlying neuropile.

Download e-book for iPad: Human Germline Gene Therapy: Scientific, Moral and Political by David B. Resnik, Holly B., Ph.D. Steinkraus, Pamela J.,

Within the final decade, students through the international have started to damage the conversational taboo surrounding human genetic engineering. This publication will give a contribution to this crucial dialogue by way of offering an updated precis and research of key matters in human germline gene remedy with the purpose of laying the root for additional debates and public coverage judgements.

Additional info for 64.VLSI Systems

Example text

Pipelining after each 1 bit addition, the multiplier architecture is very similar to that described in Ref. 143. The clock signals are distributed in metal outside the multiplier array and in polycide (strapped polysilicon with silicide to minimize the line resistance) inside the multiplier array. Two-phase clocking is used with a total master and slave register fanout of 8 pF. No special circuitry to prevent overlap of the two-phase clock is used because this degrades the active-high portion of the clock signal.

Minimize TCP subject to the local and global timing constraints: TSkew ≤ TCP − TPD(max) = TCP − (TC-Q + TLogic(max) + TInt + TSet-up ) for TCi > TC f |TSkew | ≤ TPD(min) = TC-Q + TLogic(min) + TInt + THold Minimize TCP subject to R1 − R2 : R2 − R2 : R3 − R4 : R3 − R2 : R1 − R4 : C1 − C2 = TSkew12 ≥ −20 ns TSkew12 − TCP ≤ −22 ns C2 − C3 = TSkew23 ≥ −26 ns TSkew23 − TCP ≤ −27 ns C3 − C4 = TSkew34 ≥ −2 ns TSkew34 − TCP ≤ −3 ns C3 − C2 = TSkew32 ≥ −2 ns TSkew32 − TCP ≤ −3 ns TSkew12 + TSkew23 + TSkew34 = 0 where the optimal clock schedule is TSkew12 = −3 ns TSkew23 = −12 ns TSkew34 = 15 ns TCP = 19 ns If zero clock skew between off-chip registers is not considered, the minimum clock period is TCP ϭ 15 ns.

Thus, decreasing the resistance at the source by increasing the line width affects the total path delay more significantly than decreasing the resistance at the leaf node because more capacitance is seen by the large source resistance than if the resistance is greater near the leaf. Therefore, the clock skew is particularly sensitive to changes in line width close to the clock source. One approach to making the clock lines more tolerant of process variations is to make the width of the clock interconnect lines widest near the clock source and thinner as the leaf nodes are approached.

Download PDF sample

64.VLSI Systems by John G. Webster (Editor)

by William

Rated 4.52 of 5 – based on 36 votes
Comments are closed.