Table 15 Interface Connector Pins And I/O Signals - Hitachi HDS721050CLA362 Specifications

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.
S1 GND
S2 A+
S3 A-
Signal S4 Gnd
S5 B-
S6 B+
S7 Gnd
P1 V33
P2 V33
P3 V33
P4 Gnd
P5 Gnd
P6 Gnd
P7 V5
P8 V5
Power P9 V5
P10 Gnd
P11 Reserved
P12 Gnd
P13 V12
P14 V12
P15 V12
Table 14
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
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.
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.
HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
Plug Connector pin definition
2nd mate
Differential signal A from Phy
2nd mate
Differential signal B from Phy
2nd mate
Key and spacing separate signal and power segments
3.3V power
3.3V power
3.3V power, pre-charge, 2nd Mate
1st mate
2nd mate
2nd mate
5V power,pre-charge,2nd Mate
5V power
5V power
2nd mate
Support staggered spin-up and LED activity
1st mate
12V power,pre-chage,2nd mate
12V power
12V power
21
Signal I/O
Gnd
RX+ Input
RX- Input
Gnd
TX- Output
TX+ Output
Gnd
3.3V
3.3V
3.3V
Gnd
Gnd
Gnd
5V
5V
5V
Gnd
Reserve
Gnd
V12
V12
V12