7AA - Brand New IC Chips
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INTRODUCTION
The 82077AA is a true single-chip floppy disk, and tape drive controller for the PC-AT and PS/2. The 82077AA, a 24 MHz crystal, a resistor package and a chip select implement a complete design. All drive control signals are fully decoded and have 40 mA drive buffers with selectable polarity. Signals returned from the drive are sent through on-chip input buffers with hysteresis for noise immunity. The integrated analog data separator needs no external compensation yet allows for a wide motor speed variation with exceptionally low soft error rates. The microprocessor interface has a 12 mA drive buffer on the data bus plus 100% hardware register compatibility for PC-AT’s and PS/2’s. The 16-byte FIFO with programmable thresholds is extremely useful in multi- master systems (PS/2, EISA) or systems with a large amount of bus latency.
■ Single-Chip Floppy Disk Solution
— 100% PC AT Compatible
— 100% PS/2 Compatible
— 100% PS/2 Model 30 Compatible
— Integrated Drive and Data Bus Buffers
■ Integrated Analog Data Separator
— 250 Kbits/sec
— 300 Kbits/sec
— 500 Kbits/sec
— 1 Mbits/sec
■ High Speed Processor Interface
■ Perpendicular Recording Support
■ Integrated Tape Drive Support
■ 12 mA Host Interface Drivers, 40 mA Disk Drivers
■ Four Fully Decoded Drive Select and Motor Signals
■ Programmable Write Precompensation Delays
■ Addresses 256 Tracks Directly, Supports Unlimited Tracks
■ 16 Byte FIFO
■ 68-Pin PLCC
(See Packaging Spec., Order Ý240800, Package Type N) -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download 7AA
- Chipdatas Part: CD93-7AA
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 15:21 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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