Evgeny_CD, Архитектор (02.05.2017 19:43, просмотров: 4050)
Из "рекламы справа". AT25M02 EEPROM 1М циклов SPI 5 МГц. -> Есть I2C вариант -->. DigiKey 10 - $2.049; 100 - $1.797. Ну почему только 5 МГц??? На самом деле очень приятное дополнение к NAND. Можно было бы сделать простую и надежную http://www.microchip.com/wwwproducts/en/at24cm02
http://www.microchip.com/wwwproducts/en/at25m02
ФС. Там еще и ECC встроенная есть.
The AT25M02 incorporates a built in error detection and correction (EDC) logic scheme. The EEPROM array is internally organized as a group of four connected 8-bit bytes plus an additional six ECC (Error Correction Code) bits of EEPROM. These 38 bits are referred to as the internal physical data word. During a read sequence, the EDC logic compares each 4-byte physical data word with its corresponding six ECC bits. If a single bit out of the 4-byte region happens to read incorrectly, the EDC logic will detect the bad bit and replace it with a correct value before the data is serially clocked out. This architecture significantly improves the reliability of the AT25M02 compared to an implementation that does not utilize EDC.