Tuesday, January 14, 2014


EMS (Embedded Module Series) SD / MMC / FRAM is a module to facilitate the interface between the SD (Secure Digital) card or MMC (MultiMedia Card) with a microcontroller that works at a voltage of +5 VDC.

SD or MMC cards can be used as a non-volatile memory that is easily replaced so as to facilitate the expansion of larger memory capacity. This module is suitable for applications that require data storage media, for example: attendance systems, queuing systems, or other datalogging applications.


  • Requires +5 VDC power supply. 
  • Available regulator 3.3 V DC power supply to SD card (or MMC). 
  • Supported card types: SD Card (and MMC). 
  • SD Card interface (and MMC) with microcontroller in SPI. 
  • Available Ferroelectric Nonvolatile 2K bytes of RAM (FM24C16). 
  • FRAM microcontroller interface with both TWI (Two-Wire Interface). 
  • Available short tutorial on SD card and data storage format FAT16. 
  • There are examples of applications to DT-51 ™ Low Cost Series and DT-AVR Low Cost Series in BASIC language for the MCS-51 ® (BASCOM-8051 ©) and the C language for the AVR ® (CodeVisionAVR ©). 
  • Dimensions: 4.75 cm x 4.85 cm x 1.5 cm 


  • EMS 1 piece Boards SD / MMC / FRAM. 
  • 1 Quick Start sheet. 
  • 1 piece CD contains sample applications, datasheet, etc..