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82077AA-1 Datasheet(PDF) 1 Page - Intel Corporation |
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82077AA-1 Datasheet(HTML) 1 Page - Intel Corporation |
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1 / 62 page  May 1994 Order Number 290166-007 82077AA CHMOS SINGLE-CHIP FLOPPY DISK CONTROLLER Y Single-Chip Floppy Disk Solution 100% PC AT Compatible 100% PS2 Compatible 100% PS2 Model 30 Compatible Integrated Drive and Data Bus Buffers Y Integrated Analog Data Separator 250 Kbitssec 300 Kbitssec 500 Kbitssec 1 Mbitssec Y High Speed Processor Interface Y Perpendicular Recording Support Y Integrated Tape Drive Support Y 12 mA Host Interface Drivers 40 mA Disk Drivers Y Four Fully Decoded Drive Select and Motor Signals Y Programmable Write Precompensation Delays Y Addresses 256 Tracks Directly Supports Unlimited Tracks Y 16 Byte FIFO Y 68-Pin PLCC (See Packaging Spec Order 240800 Package Type N) The 82077AA floppy disk controller has completely integrated all of the logic required for floppy disk control The 82077AA a 24 MHz crystal a resistor package and a device chip select implements a PC AT or PS2 solution All programmable options default to compatible values The dual PLL data separator has better performance than most board leveldiscrete PLL implementations The FIFO allows better system perform- ance in multi-master systems (eg PS2 EISA) The 82077AA is available in three versions82077AA-5 82077AA and 82077AA-1 82077AA-1 has all features listed in this data sheet It supports both tape drives and 4 Mb floppy drives The 82077AA supports 4 Mb floppy drives and is capable of operation at all data rates through 1 Mbps The 82077AA-5 supports 500300250 Kbps data rates for high and low density floppy drives The 82077AA is fabricated with Intel’s CHMOS III technology and is available in a 68-lead PLCC (plastic) package 290166 – 1 Figure 1 82077AA Pinout PS2 and PC AT are trademarks of IBM |
Similar Part No. - 82077AA-1 |
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Similar Description - 82077AA-1 |
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