The EEPROM is a microchip, which is designed to store important data to the microcontroller. It is also called non-volatile memory solid. Is usually a very small amount of data stored even after power off. It should be borne in mind that the number of records and deletes data in the EEPROM is limited, and the number of readings, endlessly. The process of recording or rewriting may include one byte (not as in the case of flash memory, where clearing and overwriting should be done collectively). Please review our offer high quality EEPROM memory.
Module EEPROM from series Gravity, allows for memory expansion on the data with 256 KB in Arduino. Communication via the I2S interface. It saves data during a power outage. The EEPROM is characterized by an almost infinite number of read cycles, and very low energy consumption.
Non-volatile EEPROM memory is one of memory types ROM (memory read only). Such a chip is, for example, in mikrokontrolerach Arduino. Depending on the destination is up to several tens of kilobytes. In practice also widely used solutions in which such a memory should be much higher. For example, in laptops this kind of memory has the task to save the files needed for flashing BIOS.
Record (overwrite) to the EEPROM is possible to separate bytes in memory, FLASH erasing and writing to do together. Such operation requires the use of special procedures and, above all, of buffers to store more data, and, therefore, the use of RAM. The EEPROM chip does not require such operations, thanks to what is ideal in situations in which value the preservation of individual bytes. Unfortunately, the consequence of such opportunities for slower data exchange (read and write) with FLASH memory. The number of readings from the EEPROM indefinitely, however, it should be borne in mind that the number of changes (writing and reading) is limited. Depending on model and manufacturer, ranging from 10 thousand to 1 million cycles, and it exceeded the memory ceases to function.
In our offer you will find individual modules for soldering, for which memory-1 kb - divided into 128 8-bit blocks and communicates via I2C bus. Individual models differ primarily by the supply voltage (from 1.7 V to 5.5 V or from 2.5 V to 5.5 V). We also have ready tiles PLC DFRobot, in which the manufacturer has provided four output special connectors (wire included). The device may be a memory expansion to 256 KB for the microcontroller Arduino. Additional memory Board EEPROM Arduino allows you to save data during a power outage.