AT32F421 - 32-bit MCU
9 2 Functionality overview 11 2.1 ARM®Cortex®-M4 11 2.2 Memory 12 2.2.1 Internal Flash memory 12 2.2.2 Memory protection unit (MPU) 12 2.2.3 Embedded SRAM12 2.3 Interrupts 12 2.3.1 Nested vectored interrupt controller (NVIC)12 2.3.2 External interrupts (EXINT) 12 2.4 Power control (PWC) 1
AT32F421 Features
* Core: ARM® 32-bit Cortex®-M4 CPU
* 120 MHz maximum frequency, with a memory protection unit (MPU), single-cycle multiplication and hardware division
* DSP instructions
* Memories
* 16 to 64 KB of internal Flash memory
* 4 Kbytes of boot memory used as a Boo
