ATSAM4LS4BA-AU

The ATSAM4L embeds state-of-the-art picoPower 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. On-chip regulator improves power efficiency used in switching mode with an external inductor or can be used in linear mode if application is noise sensitive. The ATSAM4L supports 4 power saving strategies. The SLEEP mode put the CPU in idle mode and offers different sub-modes which automatically switch off/on bus clocks, PLL, oscillators. 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 0.5µA, the device is able to wakeup from external interrupts. The ATSAM4L incorporates on-chip Flash tightly coupled to a low power cache (LPCACHE) for active consumption optimization and SRAM memories for fast access. The LCD controller is intended for monochrome passive liquid crystal display (LCD) with up to 4 Common terminals and up to 40 Segments terminals. Dedicated Low Power Waveform, Contrast Control, Extended Interrupt Mode, Selectable Frame Frequency and Blink functionality are supported to offload the CPU, reduce interrupts and reduce power consumption. The controller includes integrated LCD buffers and integrated power supply voltage. The low-power and high performance capacitive touch module (CATB) is introduced to meet the demand for a low power capacitive touch solution that could be used to handle buttons, sliders and wheels.

• 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 core mark/am
  • 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 to 30MHz