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pinout (распиновка)![]() |
ATA=AT bus Attachment.. Developed by Western Digital, Conner & Seagate
![]() 40 pin IDC MALE connector at the controller & peripherals |
Nominally called the IDE (Integrated Drive Electronics) bus; how ever it"s more correctly known as the ATA (Advanced Technology Attachment) [Parallel bus] specification [ATA Bus]. The IDE bus is used in Personal Computers [PCs] as a hard-drive or peripheral bus to interconnect the PC mother board and a hard drive. With the introduction of Serial ATA [SATA], Parallel ATA is now being called PATA. The specification has been up-graded a number of times each building on the past specification. ATA-1 and 2 were single documents, but like SCSI, after ATA-2 the specification was divided into a number of different documents. Data is passed Single-Ended. Only the 40 pin connectors are referenced below, which are used on 3.5-inch drives, but there is also a 50 pin connector used on 2.5-inch drives. The 50 pin connector adds the power and Master/Slave functions. PCMCIA uses a 68 pin connector. Most maintain backward compatibility, keeping in mind the cable changed. A graph showing the difference between ATA and Ultra ATA timing is shown on the Strobe page. The IDE, ATA connector pinout is listed in the table below. There are a number of versions: [Serial ATA: is listed on its own page.] ATA-1 (IDE), [Obsolete] 8.3MBytes/sec, 8 or 16 bit data width, 40 pin data ribbon cable/connector. With a maximum of 2 devices on the bus. Using PIO Modes 0, 1 or 2. Preformed no bus error correction. ATA-2 (EIDE, or Fast ATA), [Obsolete] 16.6MBytes/sec, 8 or 16 bit data width, 40 pin data ribbon cable/connector. With a maximum of 4 devices on the bus. Using PIO Modes 0, 1, 2, 3, or 4 ATA-3, 16MBytes/sec, 16 bit data width, 40 pin data ribbon cable/connector.
Using PIO Modes 0, 1, 2, 3, or 4 and Multiword DMA modes 1 and 2. Runs with
120nS Strobes (rising edge to rising edge). Includes CRC. ATA-4 Ultra-ATA/33, 33MBytes/sec, 16 bit data width, 40 pin data ribbon cable/connector. Using PIO Modes 0, 1, 2, 3, or 4 and Multiword DMA modes 1 and 2 and Ultra DMA modes 0, 1, and 2. Runs with 120nS Strobes (rising edge to rising edge), but used both edges of the Strobe producing an effective 60nS Strobe rate. 33MBps Transfer speed = [(1/120nS) x 2 bytes x 2]. Where 120nS cycle time is 4 clock periods at 30nS each. Added CRC checking. ATA-5 Ultra-ATA/66, 66MBytes/sec, 16 bit data width 40 pin data connector/80 pin cable, with the additional 40 new pins being Ground. The new cable allows ATA/66 to run at a faster rate then ATA/33. Using PIO Modes 0, 1, 2, 3, or 4 and Multiword DMA modes 1 and 2 and Ultra DMA modes 0, 1, 2, 3 and 4. Runs with 60nS Strobes (rising edge to rising edge), but uses both edges of the Strobe producing an effective 30nS Strobe rate. 66MBps Transfer speed = [(1/60nS) x 2 bytes x 2]. Where 60nS cycle time is 2 clock periods at 30nS each. ATA-6 Ultra-ATA/100, 100MBytes/sec,16 bit data width 40 pin data connector/80 pin cable, with the additional 40 new pins being Ground. Using PIO Modes 0, 1, 2, 3, or 4 and Multiword DMA modes 1 and 2 and Ultra DMA modes 0, 1, 2, 3, 4 and 5. 100MBps Transfer speed = [(1/40nS) x 2 bytes x 2]. Where 40nS cycle time is 2 clock periods at 20nS each ATA-7 Ultra-ATA/133, 133MBytes/sec,16 bit data width 40 pin data connector/80 pin cable, with the additional 40 new pins being Ground. Using PIO Modes 0, 1, 2, 3, or 4 and Multiword DMA modes 0, 1 and 2 and Ultra DMA modes 0, 1, 2, 3, 4, 5 and 6. 133MBps Transfer speed = [(1/30nS) x 2 bytes x 2]. Where 30nS cycle time is 2 clock periods at 15nS each Serial ATA: (Ver 1.0) High Speed Serialized AT Attachment PIO Modes: 0 [3.3MB/s], 1 [5.2MB/s], 2 [8.3MB/s], 3 [11.1MB/s], 4 [16.7MB/s] Power (+5 / +12volts) is supplied over a four pin connector (unless the 50-pin
connector is used). There are a number of power (down) modes defined: Active,
Idle, Standby, and Sleep. The early specifications defined the data cable as a normal 40 pin ribbon cable
with a 40 pin IDC connector. The latest standard(s) define the same 40 pin connector,
but have increased the ribbon to 80 pins - the additional 40 pins being dedicated
to ground pins. Data transfers are made at either 8 or 16 bits. | ![]() 40 pin IDC FEMALE connector at the cable |
Note: Direction is Controller relative Devices (Harddisks).