Atmel AT91FR4042

The Atmel AT91FR4042 is an ARM7TDMI based High-performance 32-bit RISC Microcontroller with Thumb extensions, Fully Programmable External Bus Interface, up to 64MB Address Space and 8 Chip Selects, 256K Words 16-bit Flash Memory, 256K Bytes Internal RAM, 32 Programmable I/O Lines, 8-level Priority, Individually Maskable, Vectored Interrupt Controller, 4 External interrupts, including a High-priority Low-latency Interrupt Request, 3-channel 16-bit Timer/Counter, 3 External Clock Inputs, 2 Multi-purpose I/O Pins per Chan., 2 USARTs, 2 Dedicated Peripheral Data Controller Channels per USART, Programmable Watchdog Timer, Advanced Power-saving Features.