Models: DLGA-22690 and DLGA-23080

IDE signal connector

The IDE signal connector is designed to mate with dupont part number 69764-044 or equivalent.

Notes:

1. Pin position 20 is blank.
2. Pin 49: When grounded, no-spin-up at POR. When open/pull-up, normal spin-up at POR.

Signal definition

The pin assignments of interface signals are listed as follows:

PIN     Signal      I/O      PIN      Signal      I/O

01     -HRESET       1        02      GND
03      HD07        I/O       04      HD08        I/O
05      HD06        I/O       06      HD09        I/O
07      HD05        I/O       08      HD10        I/O
09      HD04        I/O       10      HD11        I/O
11      HD03        I/O       12      HD12        I/O
13      HD02        I/O       14      HD13        I/O
15      HD01        I/O       16      HD14        I/O
17      HD00        I/O       18      HD15        I/O
19      GND                  (20)     Key
21      DMARQ        O        22      GND
23     -HIOW         I        24      GND
25     -HIOR         I        26      GND
27      HIORDY       O        28      CSEL         I
29     -DMACK        I        30      GND
31      HIRQ         O        32     -HIOCS16      O
33      HA01         I        34     -PDIAG       I/O
35      HA00         I        36      HA02         I
37     -HCSO         I        38     -HCS1         I
39     -DASP        I/O       40      GND
41     +5V Logic    PWR       42     +5V Motor    PWR
43      GND                   44      (Resv)

Note:
"O" designates an output from the drive.
"I" designates an input to the drive.
"I/O" designates an input/output common.
"PWR" designates a power supply to the drive.
"(Resv)" designates reserved pins which must be left unconnected.

Note:
There are two input pins for +5 Volt power supply, "+5V Logic" and "+5V Motor." "+5V Logic" is connected to the internal logic circuits and "+5V Motor" is connected to the spindle motor and motor drive.

It is possible to turn on and off "+5V Logic" by an external switch circuit to reduce power consumption to the least possible. In this mode, a voltage drop out due to the motor spin up current can be reduced by connecting "+5V Motor" line into the system power source directly.