This is a listing of OEM microSD connector manufacturers. In most cases the connector is a surface mount [SM] device, that mounts to the Printed Wiring Board [PWB] via SMT.
MicroSD or Trans Flash are both the same type of PHY interface.
The microSD standard has evolved from and has taken the place of the previous TransFlash term.
Fujitsu
{microSD/TransFlash connector, Surface Mount}
molex
{microSD Memory Card Connector, Normal Mount SMT}
Tyco Electronics
{MicroSD Surface mount connector with in-line leads}
Wieson Technologies Co., Ltd.
{MicroSD Connectors}
Yamaichi Electronics
{microSD Card Reader - Hinge Type/Top Mount, Reversed Type,
microSD Card Adapter (microSD-to-miniSD)}
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A microSD Card is a type of Removable NAND-type small flash memory card format.
The microSD card measures 11mm x 15mm and 1mm thick.
Back to the main microSD Card page for a description and Signal Assignments.
There are two other physical form factors in the Secure Digital [SD] family; SD Card, or the miniSD Card pages.
| Pin # | Pin Name | Signal Function |
| 1 | DAT2 | Data Bit 2 |
| 2 | CD/DAT3 | Card Detect / Data Bit 3 |
| 3 | CMD | Command Line |
| 4 | Vdd | Supply Voltage 2.7v / 3.6v |
| 5 | CLK | Clock |
| 6 | Vss | Ground |
| 7 | DAT0 | Data Bit 0 |
| 8 | DAT1 | Data Bit 1 |
| Pin # | Pin Name | Signal Function |
| 1 | NC | No Connect |
| 2 | /CS | Chip Select |
| 3 | DI | Master Out/Slave In (MOSI) |
| 4 | Vdd | Supply Voltage 2.7v / 3.6v |
| 5 | CLK | Clock |
| 6 | Vss | Ground |
| 7 | DO | Master In/Slave Out (MISO) |
| 8 | RSV | Reserved |
The SPI mode is optional in the microSD format.
Other Flash Memory Stick Formats
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The graphic to the right shows: The MicroSD form factors picture is used under GNU License |
 Comparison of SD Memory Card sizes SD Card, miniSD Card, microSD Card |
Mini and micro SD Card - EMI filtering and 25 kV ESD protection: EMIF06-mSD01F2, STMicroelectronics
Comparison of Removable Memory Card sizes
Engineering Design Key words: microSD,miniSD, Memory Stick card, Memory Stick, Memory Stick Duo, MemoryStick PRO, Memory Stick pinout, MagicGate, MagicGate Memory Stick, Form Factor, SPI, pinout, Pin out Personal Computer Memory Card International Association, PC Card, Interconnect, Electrical layer, Interface Standard Data Bus, Standard, Specification, Spec, Interface, IC, Physical Interface, Description, Manufacturer, Personal Computer, PC, Pin-out, Connector Pins
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