Pinouts of Connectors

ESDI connector pinout

layout
schematic diagram
add this page to bookmarks

ESDI=Enhanced Small Device Interface. Developed by Maxtor in the early 1980´s as an upgrade and improvement to the ST506 design.

34 pin IDC MALE connector pin-out & layout
34 pin IDC MALE connector  at the controller (control connector)
Data connectors:

20 PIN IDC MALE (At the controller)

20 PIN IDC FEMALE (At the harddisk)

20 PIN IDC MALE at the Controller.

20 PIN IDC FEMALE at the Harddisk.

Control connector

Pin Name Description
2  Head Sel 3
4  Head Sel 2
6  Write Gate
8  Config/Stat Data
10   Transfer Acknowledge
12   Attention
14   Head Sel 0
16   Sect/Add MK Found
18   Head Sel 1
20   Index
22   Ready
24   Transfer Request
26   Drive Sel 1
28   Drive Sel 2
30   Drive Sel 3
32   Read Gate
34   Command Data
Note: All odd are GND, Ground.

Data connector

Pin Name Description
1  Drive Selected
2  Sect/Add MK Found
3  Seek Complete
4  Address Mark Enable
5  (reserved, for step mode)
6 GND Ground
7  Write Clock+
8  Write Clock-
9  Cartridge Changed
10   Read Ref Clock+
11   Read Ref Clock-
12 GND Ground
13   NRZ Write Data+
14   NRZ Write Data-
15 GND Ground
16 GND Ground
17   NRZ Read Data+
18   NRZ Read Data-
19 GND Ground
20 GND Ground

This information should be correct, but may be not. You can help us to improve this webpage!
You can confirm this document to be correct (be careful), or report an error in document (error may be described in the following webpage). Result of your submission will be used for calculating document status shown at the bottom of this page.
34 pin IDC FEMALE connector pin-outs & layouts
34 pin IDC FEMALE connector  at the hard disk (control connector)
Pinouts.ru > Pinouts of different harddrives connectors >  Pinout of ESDI connector and layout of 34 pin IDC MALE connector and 34 pin IDC FEMALE connector

Source(s): Hardware Book
Document status: unknown
mark as erroneous!
mark as correct		 0 report(s)
Click one of this links to change document status.
[Discuss at the forum] [Back to index] [Add new pinout]
[Report an error or update]
This information is maintained by pinouts.ru team and provided as a guideline only.
Efforts have been made to ensure it is correct, but it is the responsibility of the user
to verify the data is correct for their application.
64 hits since February 12, 2005