Datasheet

Intel® Solid-State Drive 525 Series
Intel® Solid-State Drive 525 Series
Product Specification December 2012
12 Order Number: 328354-001US
Table 9. Serial ATA Power Pin Definitions
Pin
1
Function Definition
P20
Reserved
No Connect
P21
GND
Return Current Path
P22
Reserved
No Connect
P23 +B Host Receiver Differential Signal Pair (This is an output of the SSD)
P24 +3.3 V 3.3 V Source
P25 -B Host Receiver Differential Signal Pair (This is an output of the SSD)
P26 GND Return Current Path
P27 GND Return Current Path
P28
1
+1.5 V 1.5 V Source
P29
GND
Return Current Path
P30
2
Two Wire Interface
Two Wire Interface Clock
P31
-A
Host Transmitter Differential Signal Pair (This is an input of the SSD)
P32
2
Two Wire Interface
Two Wire Interface Data
P33 +A Host Transmitter Differential Signal Pair (This is an input of the SSD)
P34 GND Return Current Path
P35 GND Return Current Path
P36 Reserved No Connect
P37 GND Return Current Path
P38 Reserved No Connect
P39 +3.3 V 3.3 V Source
P40
GND
Return Current Path
P41
+3.3 V
3.3 V Source
P42
Reserved
No Connect
P43
Device Type
No Connect
P44 Reserved No Connect
P45
3
Vendor Vendor Specific / Manufacturing Pin
P46 Reserved No Connect
P47
3
Vendor Vendor Specific / Manufacturing Pin
P48
1
+1.5 V 1.5 V Source
P49 DA/DSS Device Activity Signal / Disable Staggered Spin-up
P50
GND
Return Current Path
P51
4
Presence Detection
Shall be pulled to GND by device
P52
+3.3 V
3.3 V Source
Notes:
1. 1.5 V rail is not used on the Intel SSD 525 Series. No connect on the host side. Pin 6, 28, and 48 shall be unconnected on the
device side to avoid conflicts with wireless coexistence pins as specified in PCI Express Mini Card Specification.
2. Pins 30 and 32 are intended for use as a two-wire interface to read a memory device to determine device information (an
example of this would be for use as SMB bus pins). These pins are not designed to be active in conjunction with the SATA signal
differential pairs. Not used on the Intel SSD 525 Series. No connect on the host side.
3. Vendor-specific pins are not used in the Intel SSD 525 Series. No connect on the host side.
4. Presence detection pin indicates presence of an mSATA device.