WD1014

The WD1014 EDS logic chip provides the WD1002-05 Winchester floppy disk controller (WFC)board with ECC and support logic.The EDS chip is a single chip device specifically designed to add error correction capabilities to a 5.25" and 8" Winchester disk drive.WD1014 also contains three 8-bit registers,three counters,and several latches that enchance the capability of the WFC on-board control processor (CP) chip WD1015 for control functions in real time operation.The EDS 40-pin device replaces approximately 35 standard TTL pacakges consisting of shift registers,flip-flops,and logic gates.

WD1014 has many unique features: The first one is data transfer rate of 5M bits/second .The second one is it supports read/write short/long features.The third one is on-chip storage of syndrome/check bytes.The forth one is 8-bit I/O data bus.The fifth one is on-chip logic for external buffer control.The sixth one is 40 pin,dual-in-line N-MOS device,etc.

There are some maximum ratings about WD1014.There are some absolute maximum ratings about it.voltage on any pin with respect to Vss is -0.2 V to 7 V.Ambient temperature is 0 to 70.Storage temperature is -55 to 125(plastic) or is -65 to 150(ceramic).Power dissipation is 1.5 W.