RT1809

USB 2.0 Full-Speed Device Controller
Built-in USB transceiver, USB pull-up control
Standard SPI (SSP) – master/slave mode
Optimized for Configuration Value of Flash Memory Access
SPI clock up to 24 MHz, supports mode 0~3
Internal 32 KB SRAM + 8 KB cache
USB-to-SPI bridge configuration supported
Configurable GPIOs for SPI slave selection and control
Supports USB vendor commands for SPI read/write/erase
Built-in LDO regulator (3.0V/3.3V)
Operating voltage: 3.3V
Package: LQFP48