microSD Card

APXXXXMCSD/APXXXXMCSHX

© 2010 Apacer Technology, Inc.

Rev .1.5

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PRODUCT DESCRIPTION

Apacer microSD Memory Card is designed specifically for MicroSD Card applications that put a

premium on small form factor with lower power. The MicroSD memory card is functionally compatible

with the SD memory card but is smaller in dimensions. The MicroSD Memory Card can be inserted into

a passive SD Memory Card Adapter and operate as an SD Memory card. All technical drafts follow DIN

ISO standard. All device and interface configuration data are (such as maximum frequency, card

identification, etc.) stored on the card. For compatibility with existing controllers, the MicroSD memory

Card offers, in addition to the MicroSD card interface, an alternate communication protocol that is based

on the SPI standard.

The MicroSD Memory Card includes an intelligent controller that manages interfaced protocols and data

storage and retrieval as well as Error Correction Code (ECC) algorithms, defect handling and

diagnostics, power management and Content Protection for Recordable Media related functions.

The MicroSD Card is data storage Memory Card. It is integrated with controller & NAND type Flash

memory with serial & random access capability. The device is designed for cameras, smart phones,

digital recorders, MP3 players, PDAs, electronic toys, etc. The Apacer MicroSD card meets SDA (SD

card Association) Specifications. This document gives a general overview of the MicroSD Memory Card

architecture. A detailed description can be found in “MicroSDA Specifications “.

The MicroSD Memory Card is a memory card that is specifically designed to meet the security, capacity,

performance and environment requirements inherent in newly emerging audio and video consumer

electronic devices. The MicroSD Memory Card will include a copyright protection mechanism that

complies with the security of the SDMI standard and will be faster and capable for higher Memory

capacity. The MicroSD Memory Card security system uses mutual authentication and a "new cipher

algorithm" to protect from illegal usage of the card content. A none secured access to the user‘s own

content is also available. The physical form factor, pin assignment and data transfer protocol are forward

compatible with the Multimedia Card with some additions.

The MicroSD Memory Card host interface supports regular Multimedia Card operation as well. In other

words, Multimedia Card forward compatibility was kept. Actually the main difference between MicroSD

Memory Card and Multimedia Card is the initialization process.

Speed Class

 Class 2 - Are more than or equal to 2 MB/sec performance.

 Class 4 - Are more than or equal to 4 MB/sec performance.

 Class 6 - Are more than or equal to 6 MB/sec performance.