- AT Attachment. A popular 16-bit interface standard that extends the
bus of the IBM PC-AT to attach peripherals;. It has been developed through a
number of generations.
ATA Version Also known as Bus width Maximum dData rate Notes ATA-1 IDE 8 or 16 bit 8.3MB/sec 40 pin ribbon cable. Maximum of two devices. ATA-2 EIDE
8 or 16 bit 16.6MB/sec Maximum number of devices increased to four. ATA-3 16 bit 16MB/sec CRC added. ATA-4 Ulta-ATA/33 16 bit 33MB/sec ATA-5 Ulta-ATA/66 16 bit 66MB/sec 80 pin ribbon cable, 40 pin connector (extra cables for noise reduction).
These cables typically have three connectors. The blue connector should be plugged into the mother board, the grey (middle) connector to any slave device and the grey (end) connector to the master device.
ATA-6 Ultra-ATA/100 16 bit 100MB/sec ATA-7 Ultra-ATA/133 16 bit 130MB/sec
For more information see:
- www.interfacebus.com/Design_Connector_IDE.html - ATA Bus Description with IDE Pin Out and Signal Names. Article also covers the different generations of ATA.