Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Ficha De Dados
Códigos do produto
0J11285
Z5K500 OEM Specifications
37
7.3
Signal definitions
The pin assignments of interface signals are listed as follows:
No.
Plug Connector pin definition
Signal
I/O
S1 GND
2nd
mate
Gnd
S2
A+
Differential signal A from Phy
RX+
Input
S3 A-
RX- Input
Signal S4 Gnd
2nd
mate
Gnd
S5
B-
Differential signal B from Phy
TX-
Output
S6 B+
TX+ Output
S7 Gnd
2nd
mate
Gnd
Key and spacing separate signal and power
segments
segments
P1 V33
3.3V
power
3.3V
P2 V33
3.3V
power
3.3V
P3
V33
3.3V power, pre-charge, 2nd Mate
3.3V
P4 Gnd
1st
mate
Gnd
P5 Gnd
2nd
mate
Gnd
P6 Gnd
2nd
mate
Gnd
P7
V5
5V power,pre-charge,2nd Mate
5V
P8 V5
5V
power
5V
Power P9 V5
5V
power
5V
P10 Gnd
2nd
mate
Gnd
P11
DAS/DSS
Device Activity Signal / Disable Staggered
Spinup
Spinup
1
Note 1
P12 Gnd
1st
mate
Gnd
P13
V12
12V power,pre-chage,2nd mate
V12
P14 V12
12V
power
V12
P15 V12
12V
power
V12
Table 23 Interface connector pins and I/O signals
Note 1;
Pin P11 is used by the hard disk drive to provide the host with an activity indication and by the host to
indicate whether staggered spin-up should be used.
The signal the hard disk drive provides for activity indication is a low-voltage low-current driver.
If pin P11 is asserted low, the drive shall disable staggered spin-up and immediately initiate
spin-up. If pin P11 is not connected in the host system (floating), the hard disk drive shall enable
staggered spin-up.
Pin P11 is used by the hard disk drive to provide the host with an activity indication and by the host to
indicate whether staggered spin-up should be used.
The signal the hard disk drive provides for activity indication is a low-voltage low-current driver.
If pin P11 is asserted low, the drive shall disable staggered spin-up and immediately initiate
spin-up. If pin P11 is not connected in the host system (floating), the hard disk drive shall enable
staggered spin-up.
7.3.1
TX+ / TX-
These signal are the outbound high-speed differential signals that are connected to the serial ATA cable
7.3.2
RX+ / RX-
These signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
The following standard shall be referenced about signal specifications.
Serial ATA: High Speed Serialized AT Attachment Revision 1.0a 7-January -2003