Old Exam 1 with Solutions - Advanced VLSI Design and Applications | ECEN 6263, Exams of Electrical and Electronics Engineering

Download Old Exam 1 with Solutions - Advanced VLSI Design and Applications | ECEN 6263 and more Exams Electrical and Electronics Engineering in PDF only on Docsity! ECEN 6263 .— Fall 2000 Exam: 1. WRITE YOUR NAME HERE Anew a All questions must be answered on test paper! Open Book, Open Notes 2 1. Find the transistor widths Wyeet, Wneetts Wapass for a 3 bus pair static RAM subject to we the following constraints. ¢ For each transistor 42.< W< 402. * Assume that the ratio of the bit line capacitance parameters is C,,/C,’ = 101. * The read access delay should be as small as possible. To. werk crveth, (ms 3) Wath Mpa Typos” ) Ta pos <| For min, ved Arts} Wrpors = [Go Wau = | or Maud Gl” Wh % el al shld be as by aa postrole ( hs ry Wn all =4on Fen wn wg = [VID This: sdlshow sthishies Maal Miya so Avy Wpectl S iD stitus “ed ¢ | Ke ss - >3¢ ECEN 6263:Fall2000-Exam b Ostober 4, 20060 2. Estimate the delays and power consumption in the circuit below using the RC model developed.in class including the effects of the transistor threshold voltages V7, and Vp. Use as parameters the channel resistances of the six transistors, Rj, ..., Rg, and the node capacitances, Cj, ..., C4. You may assume that the capacitances already contain all parasitics from the transistors and interconnect. a. Answer the following when B = D =.1 and A goes from 0 to 1. Initial voltage across C, 2 MaVee Final voltage acrossC,?__ OF Initial voltage across C2?) Volt Final voltage across:C>?__./ Initial voltage across C3?__ Final voltage across C3? Va = Ver Initial voltage across Cy? OO Final voltage across Cy?__ Vad Delay from A to X? Vai tans = RC Ve-Vs) +R AR, )& Vie V. Stan = AG a +t RARe\ & Delay from A to Y? Vistiags RG luce) (KTR, \GMds t © GMa) ARG ad diay 2 BG “yrs AR AR). +2,R; ade ut at Roy G Average power dissipation assuming that-this situation occurs with probability p C every T seconds? P= Pele WurnS <QMu'+ & (pve) +e Vase [o Y) ws ECEN 6263 Fall 2000 Exam 1 ‘October 4, 2000 2