About Us ABET ECE 1238Digital Electronics(3 credits) Description: S tatic and dynamic s witching behavior of semiconductor devices; logic circuit families: CMOS and transmission gate circuits, DTL, TTL, Schottky, ECL , CMOS, I2L; regenerative logic circuits; semiconductor memories; SPICE circuit simulation. Prerequisites: ECE/COE 0132 Texts: D. A. Hodges , and H. G. Jackson , and R. A. Saleh, Analysis and Design of Digital Integrated Circuits, 2n 3rd d Ed., McGraw-Hill, 2004 1988. and also a s upplemental handout for bipolar junction transistor s logic circuits (mostly from the BJT chapters of the 2 nd edition of Hodges and Jackson). Course Objectives: Learn about the internal operation of digital integrated circuits. Learn how to analyze and design digital ICs, primarily in the transistor and gate level circuits. Topics Covered: Introduction to digital electronics; MOS transistor: threshold voltage, current-voltage characteristics, capacitances, SPICE MOSFET models, latch-up, MOS: static NMOS inverter analysis, transistors as load devices, circuit layout, capacitances, switching, power-delay product, NMOS gate circuits, CMOS: DC analysis, transient analysis, power-delay product, s emiconductor d iodes: I-V c haracteristic and s witching t ransients of pn j unction d iode, Schottky-barrier d iode, Transmission g ate s and l ogic c ircuits ; bipolar junction transistor: transistor operation, terminal currents, modes of operation, SPICE BJT model, BJT inverter : s tatic c haracteristics, c harge-control a nalysis, s witching t imes, Schottky-clamped inverter, comparison with SPICE ; b ipolar d igital g ate c ircuits: RTL, DTL, bipolar j unction t ransist o r gate circuits: TTL, ECL ; regenerative logic circuits: SR latch, JK flip-flop, D flip-flop, r egenerative l ogic c ircuits: TTL c ircuits, ECL c ircuits, NMOS c ircuits, CMOS c ircuits, r egenerative l ogic c ircuits: Schmitt trigger, multivibrator circuits, IC timer, semiconductor memories: ROM, SRAM, DRAM , CCD . Class/Laboratory Schedule: Class meets twice a week; 75 minutes per session. Students must complete two design/analysis projects, approximately 8 homework assignments, and two written tests (midterm and final). Professional Component Contributions: Students learn about the internal operation of various digital integrated circuits. Students also learn how to analyze and design logic circuits and gates at a transistor level. A circuit simulator, SPICE will be used for DC and transient analysis of logic circuits in conjunction with the analytical approach. Prepared by: Hong Koo Kim Date Prepared: March 22, 2005
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