闪存PIN介绍

Secure Digital I/O Card Description

Secure Digital Input/Output [SDIO] is a flash based removable memory card. The card format may also be used for other device functions in addition to data storage. Secure Digital IO uses a 9-Pin connector [1 row of 9 pins]. SDIO is based on the Secure Digital SD card. SDIO is compatible with the SD memory card, and fits in the same socket.

The Secure Digital I/O card dimensions are: 24mm wide x 32mm long x 2.1mm thick.

There are two types of SDIO cards; a full-speed version, and a slow-speed version. The full-speed version will operate with a 1-bit and 4-bit SD transfer mode, both with a clock ranging from 0Hz to 25MHz. The 4-bit version operating at 25MHz has a transfer rate of 100Mbps. The slow-speed version will use the 1-bit mode and may have the 4-bit mode, but only operates at a transfer rate of between 0Hz and 400kHz. The slow-speed version is not intended for memory functions. The SDIO card support the SPI bus interface. The SDIO mechanical form factor is shown above; however a few gaps "lock notches" are not shown. The SDIO card may exceed 24mm in width after 37mm in length, and the width may be thicker then 2.1mm after 37mm in length

T he Secure Digital memory card is a memory specifically developed to meet security requirements which have appeared in the field of electronic audio and video devices. It includes a Copyright protection mechanism which complies with the SDMI standard (Secure Digital Music Initiative). The file protection and encryption system (CPRM: Content Protection for Recordable Media) is integrated into the SD card. The SD card's interface supports standard MMC card operations.

Secure Digital I/O Card, Pin Out

Memory Stick description and Pin Out

Memory Stick is another type of Removable NAND-type small flash memory card format which was introduced in 1998. There are a few different Memory Stick formats: the Standard-size Memory Stick media measures 50.0mm x 21.5mm x 2.8mm [Width x Height x Depth], and the Memory Stick Duo media measures 31.0mm x 20.0mm x 1.6mm [Width x Height x Depth]. Pins 1 and 10 are longer then the other pins so ground is the first pin to make contact and the last to break contact. Pin 6 is recessed and make contact last as the stick is inserted. The pins are flat electrodes. The maximum transfer rate is 2.54MBps, with a maximum clock frequency of 40MHz. Memory Stick requires a power supply voltage of 2.7v to 3.6 volts.

Memory Stick - Memory Stick Pro - 10 pin connector

Note: both Pin 1 and Pin 10 shall be connected to VSS.

Memory Stick, Memory Stick Duo, MagicGate, MagicGate Memory Stick, MemoryStick PRO are registered trademarks or trademarks of Sony Corporation.

Multi Media Card, Pin Out

MultiMedia Card uses a 7-Pin connector [1 rows of 7 pins]. The 7-pin connector is on 2.5-mil centers. The seven pin interface consists of three pins dedicated to the SPI serial bus [SCK, SI, and SO], a Chip Select signal [CS], a Chip Reset [RESET], a Write Protect line [WP], and an output Ready/Busy [RDY/Busy] signal. All of the control signals execpt the RDY signal are active low. The SPI interface uses the Serial Clock [SCK] line, Serial Input [SI], and the Serial Output [SO] line. How ever the physical DataFlash card does not have all the signals listed above, refer to the pinout table shown below. A few of the signals listed above may only be found on the DataFlash Integrated Circuits [ICs]. A smaller form factor of MMC is called Reduced Size MultiMedia Card [RS-MMC]. The RS-MMC card is 24mm x 16mm x 1.5mm. The RSMMC remains pin compatible with the MMC module, but shorter

The newer versions of the standard; MMCplus, MMCmobile and MMCmicro, offer the higher transfer speeds up to 52MB/sec, or 416 Mbits/sec, and support for dual-voltage operation (1.8 and 3/3.3V), and multiple bus widths (x1, x4 and x8 bit). MMCplus, MMCmobile and MMCmicro utlize 13 pins while remaining backwards compatible with the previous version of 7-pin MMC cards