SMART ARM-based Flash MCU
- ARM® Cortex®-M3 revision 2.0 running at up to 64 MHz
- Memory Protection Unit (MPU)
- Thumb®-2 instruction set
- Pin-to-pin compatible with AT91SAM7S series (48- and 64-pin versions)
- From 64 to 256 Kbytes embedded Flash, 128-bit wide access, memory accelerator, single plane
- From 16 to 48 Kbytes embedded SRAM
- 16 Kbytes ROM with embedded bootloader routines (UART, USB) and IAP routines
- 8-bit Static Memory Controller (SMC): SRAM, PSRAM, NOR and NAND Flash support
- Memory Protection Unit (MPU)
- Embedded voltage regulator for single supply operation
- Power-on-Reset (POR), Brown-out Detector (BOD) and Watchdog for safe operation
- Quartz or ceramic resonator oscillators: 3 to 20 MHz main power with Failure Detection and optional
low power 32.768 kHz for RTC or device clock
- High precision 8/12 MHz factory trimmed internal RC oscillator with 4 MHz default frequency for
device startup. In-application trimming access for frequency adjustment
- Slow Clock Internal RC oscillator as permanent low-power mode device clock
- Two PLLs up to 130 MHz for device clock and for USB
- Temperature Sensor
- Up to 22 peripheral DMA (PDC) channels
data sheet:
ATSAM3S4C.pdf
