CUI DEVICES | MODEL: MSD-3-A | DESCRIPTION: MICRO SD CARD CONNECTOR

date 10/24/2023 | page 3 of 5

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MECHANICAL DRAWING (CONTINUED)

units: mm

PCB tolerance: ±0.05 mm

Recommended PCB Layout

Top View

PIN CONNECTIONS

PIN

SIGNAL

NAME

TYPE

DESCRIPTION

1

DAT2

I/O/PP

DATA LINE (BIT 2)

2

CD/DAT3

I/O/PP

CARD DETECT / DATA LINE (BIT 3)

3

CMD

PP

COMMAND / RESPONSE

4

VDD

S

SUPPLY VOLTAGE

5

CLK

I

CLOCK

6

VSS

S

SUPPLY VOLTAGE GROUND

7

DAT0

I/O/PP

DATA LINE (BIT 0)

8

DAT1

I/O/PP

DATA LINE (BIT 1)

CD

-

-

CARD DETECT SWITCH

GND

-

-

COVER GROUND

CARD STATUS

WITHOUT CARD

CARD INSERTED

CD

GND

CD

GND

Additional Resources: Product Page | 3D Model | PCB Footprint