ECE 637 - Fall 2013

ECE 637 - Digital CMOS Integrated Circuits

Instructor

Professor Manoj Sachdev

Calendar Description

Design of CMOS digital integrated circuits at the transistor level. Related topics include MOSFET switch and I-V models, logic gate design, transistor sizing, interconnect parasitics, gate delay, timing design, logical effort, static and dynamic logic families, arithmetic structures, latch and flip-flop elements, memory cells and arrays, and input/output circuitry.

Prerequisite

ECE 445 - Integrated Digital Electronics

Detailed Description

  1. MOS Transistor - Review (Lecture hours: 5)
    • Static behavior
    • Parasitic capacitances and dynamic behavior
    • Short channel effects
    • Concept of scaling and trends
    • SPICE MOS models
    • Process variations and process impact
  2. MOS Inverter (Lecture hours: 5)
    • Properties
    • Static behavior – switching threshold, Noise margin
    • Dynamic behavior – capacitance, propagation delay
    • Power, energy consumption and power-delay, energy-delay products
    • Layout considerations/design rules
  3. CMOS Combinational Circuits (Lecture hours: 5)
    • Implementation styles Static, ratioed, pass transistor, CPL, dynamic logic
    • Signal integrity issues in dynamic circuits
    • Cascading of dynamic circuits
    • Logic styles for low power & high performance applications
  4. CMOS Sequential Circuit (Lecture hours: 5)
    • Timing metrics for sequential circuits
    • Static and dynamic sequential flip-flops and latches
    • High speed pipeline circuits
  5. CMOS Arithmetic Circuits (Lecture hours: 7)
    • Adder, circuit and architectures
  6. Interconnect Parasitics (Lecture hours: 4)
    • Capacitive parasitics, modeling, cross talk
    • Resistive parasitics, modeling, IR drop, electromigration
    • Inductive parasitics, transmission line effects
  7. Timing Issues in Digital Circuits (Lecture hours: 5)
    • Single-phase and two-phase clocking
    • Clock skew and jitter
    • Clock generation and distribution
    • Self-timed circuit design
    • Synchronizers & arbiters

Total lecture hours: 36

Text Book

Digital Integrated Circuit: A Design Perspective, Jan Rabaey, A. Chndrakasan, and B. Nikolic, 2nd Edition, Printice Hall, ISBN 0-13-090996-3.

Project

A group IC design project is an essential component of this course. The project involves transistor-level digital circuit design, simulation and layout.