Western Digital 09_ICS90C61A free download

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ICS90C61A TABLE OF CONTENTS Section Title Page PREFACE 9-1 1.0 INTRODUCTION 9-1 1.1 Description 9-1 1.2 Features 9-2 2.0 ICS90C61 A VGA INTERFACE 9-3 2.1 System Bus Inputs 9-4 2.2 Inputs from VGA Controller 9-4 2.3 Outputs to VGA Controller 9-4 2.4 Analog Filters 9-4 2.5 User Definable Inputs 9-4 2.6 Power Considerations 9-5 3.0 PIN DESCRIPTIONS . . . 9-8 4.0 ABSOLUTE MAXIMUM RATINGS 9-9 4.1 Standard Test Conditions 9-9 4.2 D.C. Characteristics 9-9 5.0 AC Timing Characteristics 9-10 6.0 Packaging Information 9-12 11115/91 9-i ICS90C61A LIST OF ILLUSTRATIONS Figure Title Page 2-1 ICS90C61A Interface 9-3 2-2 ICS90C61 A Functional Block Diagram 9-7 5-1 ICS90C61 A Timings ... . 9-11 6-1 ICS90C61A 20-Pin PLCC Package Dimensions 9-12 6-2 Other ICS Package Dimensions . . . . . . 9-13 LIST OF TABLES Table Title Page 1-1 VCLK Selection 9-6 1-2 MCLK Selection 9-6 3-1 Pin Descriptions 9-8 4-1 D.C. Characteristics 9-9 5-1 AC Timing Characteristics 9-10 9-ii 11/15/91 PREFACE ICS90C61A PREFACE The Integrated Circuit Systems ICS90C61A dual video/memory clock generator was designed ex- ::.::: ::.::: z () ...J ...J clusively to work with Western Digital video