PCI Express Card and PCI Express Mini Card Connector Pinout - AllPinouts

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PCI Express Card

Pin Symbol Type Legend
1 gnd
2 usb d- I/O USB Data
3 usb d+ I/O USB Data
4 cp usb# O Card use USB bus
5 rsvd0 Reserved
6 rsvd1 Reserved
7 smb clk SM Bus Clock
8 smb data SM Bus Data
9 1.5 volt
10 1.5 volt
11 wake# O Wake up main CPU from card
12 3.3 Volt aux Provided when main CPU is off (support for WAKE)
13 pe rst# I Power Good (reset)
14 3.3 Volt
15 3.3 volt
16 clk req# O Clock Request - enable ICS9DB106
17 cp pe# O Card us PCI Express bus
18 refclk- I Clock input from buffer ICS9DB106
19 refclk+ I Clock input from buffer ICS9DB106
20 gnd
21 PERn0 I PCI Express RX -
22 PERp0 I PCI Express RX +
23 gnd
24 PETn0 O PCI Express TX -
25 PETp0 O PCI Express TX +
26 gnd
  • Verified with Congatec design


PCI Express - 1-lane slot

Pin Symbol Type Legend
a01 PRSNT#1 Hot-Plug presence detect
a02 +12V
a03 +12V
a04 gnd
a05 jtag2 JTAG - Clock
a06 jtag3 JTAG - Data In
a07 jtag4 JTAG - Data Out
a08 jtag5 JTAG - Mode Select
a09 3.3 Volt
a10 3.3 Volt
a11 PERST# I Power Good (Reset)
a12 gnd
a13 refclk+ I Clock input from buffer ICS9DB106
a14 refclk- I Clock input from buffer ICS9DB106
a15 gnd
a16 PERp0 I PCI Express RX +
a17 PERn0 I PCI Express RX -
a18 gnd
b01 +12V
b02 +12V
b03 rsvd0 Reserved
b04 gnd
b05 smb clk SM Bus Clock
b06 smb data SM Bus Data
b07 gnd
b08 3.3 Volt
b09 jtag1 JTAG - Reset
b10 3.3 Volt aux Provided when main CPU is off (support for WAKE)
b11 wake# O Wake up main CPU from card
b12 rsvd1 Reserved
b13 gnd
b14 PETp0 O PCI Express TX +
b15 PETn0 O PCI Express TX -
b16 gnd
b17 PRSNT#2 Hot-Plug presence detect
b18 gnd
  • Verified with PCI Express official specification


PCI Express Mini Card

Row Pin Symbol Type Legend Status
0 1 WAKE#
0 3 COEX1 Function is OEM specific changed
0 5 COEX2 Function is OEM specific changed
0 7 CLKREQ# O Request to ICS9DB106 for clock signal, MiniCard can tie to ground. USB-only cards leave this open.
0 9 Gnd
0 11 REFCLK- I Clock input from buffer ICS9DB106
0 13 REFCLK+ I Clock input from buffer ICS9DB106
0 15 Gnd
0 17 Reserved Reserved for future SIM Card pin C8
0 19 Reserved Reserved for future SIM Card pin C4
0 21 Gnd
0 23 PERn0 I PCI Express RX -
0 25 PERp0 I PCI Express RX +
0 27 Gnd
0 29 Gnd
0 31 PETn0 O PCI Express TX -
0 33 PETp0 O PCI Express TX +
0 35 Gnd
0 37 Gnd changed
0 39 3.3Vaux changed
0 41 3.3Vaux changed
0 43 Gnd changed
0 45 Reserved
0 47 Reserved
0 49 Reserved
0 51 Reserved
1 2 3.3 Vaux changed
1 4 Gnd
1 6 1.5 Volt
1 8 UIM PWR O SIM Card
1 10 UIM_DATA I/O SIM Card
1 12 UIM_CLK O SIM Card
1 14 UIM_RESET O SIM Card
1 16 UIM_VPP O SIM Card
1 18 Gnd
1 20 W_DISABLE# I Wireless disable (active low) changed
1 22 PERST# I Power Good (Reset)
1 24 3.3Vaux
1 26 Gnd
1 28 1.5Volt
1 30 SMB CLK I SM Bus Clock
1 32 SMB Data I/O SM Bus Data
1 34 Gnd
1 36 USB_D- I/O USB Data
1 38 USB_D+ I/O USB Data
1 40 Gnd
1 42 LED_WWAN# O Active low, max 9mA
1 44 LED_WLAN# O Active low, max 9mA
1 46 LED_WPAN# O Active low, max 9mA
1 48 1.5Volt
1 50 Gnd
1 52 3.3Vaux changed
  • Verified with PCI Express™ Mini Card Electromechanical Specification, 1.0, with ECN


PCI Express Cards - Compare Electrical Interfaces

Signal ExpressCard Express Slot Express Mini Type Legend
PERn0 Yes Yes Yes I PCI Express RX -
PERp0 Yes Yes Yes I PCI Express RX +
PERST# Yes Yes Yes I Reset (Power Good)
PETn0 Yes Yes Yes O PCI Express TX -
PETp0 Yes Yes Yes O PCI Express TX +
refclk- Yes Yes Yes I Clock input from buffer ICS9DB106
refclk+ Yes Yes Yes I Clock input from buffer ICS9DB106
smb clk Yes Yes Yes I SM Bus Clock
smb data Yes Yes Yes I/O SM Bus Data
wake# Yes Yes Yes O Wake up main CPU from card
CLKREQ# Yes Yes O Clock Request - enable ICS9DB106
usb d- Yes Yes I/O USB Data
usb d+ Yes Yes I/O USB Data
cp pe# Yes O Card us PCI Express bus
cp usb# Yes O Card use USB bus
COEX1 Yes Function is OEM specific
COEX2 Yes Function is OEM specific
LED_WLAN# Yes O Active low, max 9mA
LED_WPAN# Yes O Active low, max 9mA
LED_WWAN# Yes O Active low, max 9mA
UIM PWR Yes O SIM Card
UIM_CLK Yes O SIM Card
UIM_DATA Yes I/O SIM Card
UIM_RESET Yes O SIM Card
UIM_VPP Yes O SIM Card
W_DISABLE# Yes I Wireless disable (active low)
PRSNT#1 Yes I Hot-Plug presence detect
PRSNT#2 Yes O Hot-Plug presence detect
jtag1 Yes I JTAG - Reset
jtag2 Yes I JTAG - Clock
jtag3 Yes I JTAG - Data In
jtag4 Yes O JTAG - Data Out
jtag5 Yes I JTAG - Mode Select
+12V Yes pwr Power 12 Volt
1.5 Volt Yes Yes pwr Power 1.5 Volt
3.3 Volt Yes Yes pwr Power 3.3 Volt
3.3 Volt aux Yes Yes Yes pwr Power 3.3 Volt, also present if main CPU is off, support for WAKE#
GND Yes Yes Yes pwr Ground


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