參數(shù)資料
型號: 82077AA
廠商: Intel Corp.
英文描述: CHMOS SINGLE-CHIP FLOPPY DISK CONTROLLER
中文描述: CHMOS單片軟盤控制器
文件頁數(shù): 7/62頁
文件大?。?/td> 494K
代理商: 82077AA
82077AA
1.0 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 re-
turned from the drive are sent through on-chip input
buffers with hysteresis for noise immunity. The inte-
grated 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 com-
patibility 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.
Upon reset, (Pin 32) the 82077AA defaults to 8272A
functionality. New features are either selected via
hardware straps or new commands. Figure 1-1 is a
block diagram of the 82077AA.
290166–2
Figure 1-1. 82077AA Block Diagram
7
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相關代理商/技術參數(shù)
參數(shù)描述
82077AA-1 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP FLOPPY DISK CONTROLLER
82077AA-5 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:CHMOS SINGLE-CHIP FLOPPY DISK CONTROLLER
82078 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:FLOPPY DISK CONTROLLER
82078 WAF 制造商:Intel 功能描述:
82078-1 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:FLOPPY DISK CONTROLLER