WD11C00-17

The WD11C00-17 PC/XT Host interface logic device combines the necessary random logic and specialized circuitry to interface the western digital chip set to the IBM PC/XT interface for Winchester disk control.The chip contains integrated:Status ports,read/write ports, sector buffer control,ECC generation and detection logic,reset timing logic,and Host interface logic.These features greatly simplify hardware requirements for the design engineer when using the WD chip set consisting of the :WD1015,WD1010A-05,and WD10C20A-A.With appropriate decode logic,the WD11C00-17 appears to the Host as four contiguous I/O locations XX0-XX3.The 32-bit ECC generation and detection circuitry allows for realtime ECC check byte generation and error chencking;ECC correction is via the WD1015.The WD11C00-17 also contains all the handshaking logic required for polled I/O and DMA transfers with the Host.

WD11C00-17 has many unique features: The first one is 8-bit host interface.The second one is 3 micron CMOS yechnology.The third one is fast switching speeds.The forth one is low power dissipation.The fifth one is static protection on all I/Os.The sixth one is single 5 V power supply.The sixth one is high current bus drivers.The seventh one is interface logic control for PC bus,etc.There are some absolute maximum ratings about it.Voltage on amy pin with respect to Vss is -0.5 V to 7.0 V.Operating temperature is 0 to 70.Storage temperature is -55to 125.Power dissipation is 1 W.Ambient temperature is 0 to 55.

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