Pinouts >  HDD and other storage devices connectors

unknown connector
a 50 pin cable will fit most 2.5" IDE drives and bring the extra (master/slave etc) drive pins back to the system board. The connector has the same 2mm pitch as a 40 or 44 pin cable. The only place I have seen this cable is in a Fostex DF-4 Portable 4 track recorder, but it may exist in other places. It is nearly documented at http://paulski.com/zpages.php?id=1717 but he missed the two missing pins at positions 5 and 6. It seems there are a few ways 2.5" IDE drives are wired.. They will all be a subset of.. 40 pins for data 4 pins for power and optionally 6 pins 1 blank row (2 pins), and 4 pins for master/slave.

 

Pin
Number
Pin
Name
Description
1 Drive Jumper   Drive Jumper
2 Drive Jumper   Drive Jumper
3 Drive Jumper   Drive Jumper
4 Drive Jumper   Drive Jumper
5 No Pin  Blank
6 No Pin Blank
7 Reset Reset
8 Ground Gnd
9 Data 7 Data
10 Data 8 Data
11 Data 6 Data
12 Data 9 Data
13 Data 5 Data 
14 Data 10 Data 
15 Data 4 Data 
16 Data 11 Data
17 Data 3 Data
18 Data 12 Data 
19 Data 2 Data
20 Data 13 Data 
21 Data 1 Data
22 Data 14 Data
23 Data 0 Data
24 Data 15 Data 
25 GND Gnd
26 KEY Blank
27 N/C N/C
28 Gnd Gnd
29 /IOW Write Strobe
30 Gnd  Gnd
31 /IOR Read Strobe
32 Gnd Gnd
33 IO_CH_RDY   
34 ALE Address Latch Enable
35  N/C N/C
36 Gnd GND
37 IRQR Interrupt Request
38 /IOCS16  I/O Chip Select 16
39 DA1 Address 1
40 N/C  N/C
41

DA0

 Address 0
42 DA2 Address 2  
43  /IDECS0 (1F0-1F7)
44  /IDECS1 (3F6-3F7)
45 /ACTIVE LED Drive
46 Gnd Ground
47 +5 VL +5 V Logic
48 +5 VM +5 V Motor
49 Gnd Gnd
50 /Type Type (0=ATA)

 

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