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Starting SN 992.28.740, EMS/SD/MMC FRAM has undergone a series of changes/schematic be ver 3. This change provides a selection of working voltage of EMS SD/MMC/FRAM on level 3, 3VDC or 5VDC. As for the order of 2708 hardware ver 2 to ver 3 does not change, so the test program or application note that use hardware ver 2 can be replaced directly into hardware ver 3.

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

SD card or MMC can be used as a non-volatile memory that is easily replaceable so as to facilitate the expansion of larger memory capacity. This module is suitable for a variety of applications that require data storage medium, for example: attendance system, system queues, or other application datalogging.

Dimension: 4, 75 cm (L) x 4, 85cm (W) x 1, 5 cm (H)

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  • Need power supply + 5 VDC.
  • Available 3, 3V DC regulator for power supply SD card (or MMC).
  • Card type supported: SD Card (and MMC).
  • SD Card interface (and MMC) with a microcontroller for SPI.
  • Available 2 k bytes of Nonvolatile Ferroelectric RAM (FM24C16).
  • The interface of microcontroller with FRAM TWI (Two-Wire Interface).
  • A short tutorial available on the SD card and data storage format FAT16.
  • Available sample applications for DT-51 Low Cost Series ™ and DT-Low Cost AVR Series in BASIC language for MCS-51 ® (BASCOM-8051 ©) and C for AVR ® (CodeVisionAVR ©).
  • Compatible with DT-51 Low Cost Series ™ and DT-Low Cost AVR Series. Support DT-51 Minimum System ™, DT-51 PetraFuz ™, and others.



  • 1x Board EMS SD/MMC/FRAM.

Application Note Table

Article File Desc date
[AN210] Temperature Logger berbasiskan DT-AVR Inoduino dengan SD Card sebagai Media Penyimpanan Data

This application note will explain how to build a temperature logger system. This application note uses DT-AVR Inoduino, DT-I/O I2C Peripheral, DT-SENSE Temperature Sensor, EMS SD/MMC/FRAM, and EMS LCD Display.