UM8388

The UM8388 is a VLSI floppy disk controller(FDC)chip,which contains the circuitry and control functions for interfacing a processor with up to 2 floppy disk drivers.It is capable of supporting 360K bytes,1.2m bytes,720k bytes,and 1.44m bytes,FDDs using MFM coded,and double sided recording.

Features of the UM8388 are:(1)IBM PC XT/AT drive system compatible;(2)supports 2drivers(MS-DOS support);(3)1.44M/1.2M/360K/720K format selectable;(4)IBM PC driver system address decoder;(5)only 4 components needed for the drive;(6)internal write precompensation circuit,precompensation values:250-125ns;(7)internal data separator circuit;(8)support8",5 1/4 " and 3 1/2" drives.

The absolute maximum ratings of the UM8388 can be summarized as:(1)operating temperature:0 to +70;(2)storage temperature:-55 to +150;(3)all output voltages:-0.5V to +7V;(4)all input voltage:-0.5V to +7V;(5)supply voltage VCC:-0.5V to +7V;(6)power dissipation:1W.

If you want to know more information such as the electrical characteristics about the UM8388, please download the datasheet in www.seekic.com or www.chinaicmart.com .