Microchip AT91SAM9XE512B-QU, 32bit ARM Microcontroller, AT91, 180MHz, 32 kB Flash, 208-Pin PQFP / 1773739

A member of the Microchip SAM9XE series of microcontrollers based on the high-performance 32-bit ARM926EJ processor. It operates at a maximum speed of 160MHz and features 512KB of flash and 16KB of SRAM. CKGR Selectable 32768Hz Low-power Oscillator or Internal Low Power RC Oscillator on Battery Backup Power Supply, Providing a Permanent Slow Clock 3 to 20MHz On-chip Oscillator, One Up to 240MHz PLL and One Up to 100MHz PLL  PMC Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities Two Programmable External Clock Signals  AIC Individually Maskable, Eight-level Priority, Vectored Interrupt Sources Three External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt Protected  DBGU 2-wire UART and support for Debug Communication Channel, Programmable