What is the best memory choice for reliability and performance?
Portable devices such as smartphones, tablets and cameras rely on NAND flash memory for data storage. However, not all memory is created equal. Price-sensitive consumer applications, for example, typically use memories that store multiple data bits per cell. MLC (Multi-Level Cell) stores two bits per cell and TLC (Triple-Level Cell) stores three bits per cell, thus creating the low-cost, high-density, memory that makes modern devices affordable.
However, if reliability and performance are critical, then SLC (Single Level Cell) memory is the only choice. SLC stores one bit of information per cell and is commonly found in the industrial and automotive sectors. Three types of SLC-based products are standard SLC, BENANDTM and Serial NAND, each with specific features:
Standard SLC communicates via a parallel bus and is used in systems where error correction code (ECC) is managed away from the memory chip.
BENAND (Built-In ECC NAND), which also communicates via a parallel bus, features integrated, hardware-based ECC.
Serial NAND incorporates built-in ECC that can be switched off if not required and uses a serial SPI (Serial Peripheral Interface). This allows it to complement NOR flash, also in Boot code applications.
To learn more about high-performance, high-reliability SLC-based flash memory solutions, please click here:
Click here to learn more about high-performance, high-reliability SLC-based Flash memory solutions