HGST HCS5C3232SLA380 User Manual
HITACHI CinemaStar 5K 320 Hard Disk Drive specification (Rev 1.21)
14
6.1.2
Signal definition(SATA)
SATA has receivers and drivers to be connected to Tx+/- and Rx +/- Serial data signal.
defines the signal names of I/O connector pin and signal name.
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
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 Reserved
Support staggered spin-up and LED activity
Reserve
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 11
Interface connector pins and I/O signals
6.1.2.1
TX+ / TX-
These signal are the outbound high-speed differrential signals that are connected to the serial ATA cable
6.1.2.2
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
Serial ATA: High Speed Serialized AT Attachment Revision 1.0a 7-January -2003
6.1.2.3
5V PRECHARGE
+5 Vdc power that is available on the extended pins. This is used for pre-charging the I/O module.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These signals are
the inbound high-speed differential signals that are connected to the serial ATA cable.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These signals are
the inbound high-speed differential signals that are connected to the serial ATA cable.
6.1.2.4
12V PRECHARGE
+12 Vdc power that is available on the extended pins. This is used for pre-charging the 12V circuitry in the I/O Option
slot module.
slot module.