uALFAT™, pronounced micro ALFAT, is a Microsoft licensed FAT file system chipset supporting Long File Names (LFN), SD and USB storage devices are also supported. Communication with uALFAT is done over SPI/USART/I2C through a simple command set.
Key Features
• FAT16 and FAT32 support
• LFN (Long File Name)
• Communicate over UART, SPI or I2C
• Programmable UART (serial port) baud-rate
• Can open 4 files at the same time using file handles
• Fast startup and media reconnect
• Fast file read/write (average of 60,000 bytes/Sec)
• Supports Secure Digital (SD), Multi Media Card (MMC) and SD High Capacity (SDHC)
• Supports USB memory devices
• Field upgradeable firmware through a file on the connected media
• Very few external components
• Low power consumption, 8mA
• Sleep mode, 10uA
• All I/O pins are 5 volt tolerant
• Small surface mount package, LQFP 48 pin
• -40 to +85 temperature operating range
• Lead free