Input_Output

Input_Output - ECE 6130/4130 Advance VLSI Systems Fall 2009...

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1 ECE 6130/4130: Advance VLSI ECE 6130/4130: Advance VLSI Systems Systems Fall 2009 Fall 2009 I/O and Packaging I/O and Packaging Prof. Saibal Mukhopadhyay School of Electrical & Computer Engineering Georgia Institute of Technology
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2 Reading Materials Reading Materials ± Chapter 14: Introduction to VLSI Circuits and Systems , Uyemura, ± Lecture notes (posted in T-square, under “Resources/Lecture Slides”) ± Chapter 9: Digital Integrated Circuits: A Design Perspectives, J. M. Rabaey, A. Chandrakasan, B. Nikolic
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3 I/O Circuits I/O Circuits ± Communicate with the ‘outside’ world ± Input – ² need to ensure protection against electrostatic discharge ² Prevent false switching at the input ± Output – ² Need to drive large capacitance ² Energy dissipation can be high
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4 Input/Output port types. Input/Output port types.
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5 Input Circuit: ESD Protection Input Circuit: ESD Protection ± When a chip is connected to a board, there is unknown (potentially large) static voltage difference ± Equalizing potentials requires (large) charge flow through the pads ± Can damage the MOS transistors
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6 Diode characteristics.
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This note was uploaded on 12/14/2009 for the course ECE 6130 taught by Professor Staff during the Fall '08 term at Georgia Tech.

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Input_Output - ECE 6130/4130 Advance VLSI Systems Fall 2009...

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