ATSAM4CMS32-DB [Microchip]

The SAM4CM series features dual 32-bit ARM Cortex-M4 RISC processors running at 120MHz each, up to 2 Mbytes of embedded Flash, 304 Kbytes of SRAM and on-chip cache. It includes metrology-specific precision voltage reference, up to seven Sigma-Delta ADC subsystems, embedded cryptographic features, anti-tamper, FPU, multiple serial interfaces, PWM, timers, ADC, RTC, and a segmented LCD controller. A dedicated Cortex-M4F core manages metrology resources for separation of functions. The unique dual ARM Cortex-M4 architecture supports signal processing, application and communications firmware in independent partitions with external bus interface for scalability.