ATSAM4LS4CA-CFU

The SAM4L series is a member of a family of Flash microcontrollers based on the high performance 32-bit ARM Cortex-M4 RISC processor running at frequencies up to 48MHz.

The SAM4L series embeds state-of-the-art pico-Power technology for ultra-low power consumption. Combined power control techniques are used to bring active current consumption down to 90µA/MHz. The device allows a wide range of options between functionality and power consumption, giving the user the ability to reach the lowest possible power consumption with the feature set required for the application. The WAIT and RETENTION modes provide full logic and RAM retention, associated with fast wake-up capability (<1.5µs) and a very low consumption of, respectively, 3 µA and 1.5 µA. In addition, WAIT mode supports SleepWalking features. In BACKUP mode, CPU, peripherals and RAM are powered off and, while consuming less than 0.9µA with external interrupt wakeup supported.

The SAM4L series offers a wide range of peripherals such as segment LCD controller, embedded hardware capacitive touch (QTouch), USB device & embedded host, 128-bit AES and audio interfaces in addition to high speed serial peripherals such as USART, SPI and I2 C. Additionally the Peripheral Event System and SleepWalking allows the peripherals to communicate directly with each other and make intelligent decisions and decide to wake-up the system on a qualified events on a peripheral level; such as I2 C address match or and ADC threshold.

• Core
  • ARM® CortexTM-M4 running at up to 48MHz
  • Memory Protection Unit (MPU)
  • Thumb®-2 instruction set
• picoPower® Technology for Ultra-low Power Consumption
  • Active mode down to 90µA/MHz with configurable voltage scaling
  • High performance and efficiency: 28 coremark/mA
  • Wait mode down to 3µA with fast wake-up time (<1.5µs) supporting SleepWalking
  • Full RAM and Logic Retention mode down to 1.5µA with fast wake-up time (<1.5µs)
  • Ultra low power Backup mode with/without RTC down to 1,5/0.9µA
• Memories
  • From 128 to 512Kbytes embedded Flash, 64-bit wide access,
• 0 wait-state capability up to 24MHz
  • up to 64Kbytes embedded SRAM
• System Functions
  • Embedded voltage linear and switching regulator for single supply operation
  • Two Power-on-Reset and Two Brown-out Detectors (BOD)
  • Quartz or ceramic resonator oscillators: 0.6