CUI DEVICES | MODEL: SD7-2-B | DESCRIPTION: SD 7.0 CARD CONNECTOR

date 10/26/2023 | page 3 of 5

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Recommended PCB Layout

Top View

MECHANICAL DRAWING (CONTINUED)

units: mm

PCB tolerance: ±0.05 mm

PIN CONNECTIONS

CONNECTOR

PIN#

SD CARD

PIN#

SD MODE

PCLe MODE

SIGNAL

NAME

TYPE

DESCRIPTION

SIGNAL

NAME

TYPE

DESCRIPTION

P1

10

-

-

NOT USED

VSS3

S

SUPPLY VOLTAGE GROUND

P2

19

-

-

NOT USED

-

-

NOT USED

P3

9

DAT2

I/O/PP

DATA LINE (BIT 2)

CLKREQ#

I/O/OD

REFERENCE CLOCK REQUEST SIGNAL.

ALSO USED BY L1 PM SUB-STATES

P4

11

-

-

NOT USED

PCLe TX0+

IDS

PCLe TX0+

P5

1

CD/DAT3

I/O/PP

CARD DETECT/DATA LINE (BIT 3)

PERST#

I

PE-RESET IS A FUNCTIONAL RESET

P6

12

-

-

NOT USED

PCLe TX0-

IDS

PCLe TX0-

P7

2

CMD

PP

COMMAND/RESPONSE

CD

-

CARD DETECT SWITCH

P8

CD

CD

-

CARD DETECT SWITCH

VSS1

S

SUPPLY VOLTAGE GROUND

P9

3

VSS1

S

SUPPLY VOLTAGE GROUND

VSS4

S

SUPPLY VOLTAGE GROUND

P10

13

-

-

NOT USED

VDD2

S

SUPPLY VOLTAGE (1.8 V)

P11

14

-

-

NOT USED

VDD1

S

SUPPLY VOLTAGE (3.3 V)

P12

4

VDD

S

SUPPLY VOLTAGE

PCLe RX-

ODS

PCLe RX-

P13

15

-

-

NOT USED

-

-

NOT USED

P14

5

CLK

I

CLOCK

PCLe RX-

ODS

PCLe RX-

P15

16

-

-

NOT USED

VSS2

S

SUPPLY VOLTAGE GROUND

P16

6

VSS2

S

SUPPLY VOLTAGE GROUND

VSS5

S

SUPPLY VOLTAGE GROUND

P17

17

-

-

NOT USED

REFCLK+

IDS

PCLE REF CLOCK

P18

7

DAT0

I/O/PP

DATA LINE (BIT 0)

RCLK-

I

RCLK-

P19

18

-

-

NOT USED

VDD3

S

SUPPLY VOLTAGE (1.2 V)

P20

8

DAT1

I/O/PP

DATA LINE (BIT 1)

RCLK+

I

RCLK+

P21

WP

WP

-

WRITE PROTECT

WP

-

WRITE PROTECT

GND

-

-

-

COVER GROUND

-

-

COVER GROUND

CARD STATUS

WITHOUT CARD

CARD INSERTED

P8

P9

P8

P9

WRITE PROTECTION

WRITE

PROTECTED

WRITE ENABLE

P21

GND P21

GND

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