ATSAM4S8CA-AN

The ATSAM4S8CA-AN is a SMART SAM4S series 32-bit Flash Microcontroller based on the high-performance ARM Cortex-M4 RISC processor. It operates at a maximum speed of 120MHz and features 512kB of flash memory and 128kB of SRAM. Peripheral set includes a full-speed USB Device port with embedded transceiver, a high-speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller to connect to SRAM, PSRAM, NOR flash, LCD Module and NAND flash, 2 USARTs, 2 UARTs, 2 TWIs, 3 SPIs, an I²S, as well as a PWM timer, two 3- channel general-purpose 16bit timers (with stepper motor and quadrature decoder logic support), an RTC, a 12-bit ADC, a 12-bit DAC and an analogue comparator. The device operate from 1.62V to 3.6V. The device operate from 1.62V to 3.6V. It is ready for capacitive touch, offering native support for the Atmel QTouch® library for easy implementation of buttons, wheels and sliders.

• ARM Cortex-M4 with 2kB of cache running at up to 120MHz
• Memory protection unit (MPU)
• DSP instruction set
• Thumb®-2 instruction set
• Pin-to-pin compatible with SAM7S, SAM3N and SAM3S MCUs
• Embedded voltage regulator for single supply operation
• Power-on-reset (POR), brown-out detector (BOD) and watchdog for safe operation
• 3 to 20MHz resonator oscillators
• RTC with Gregorian and Persian Calendar mode, waveform generation in low-power modes
• RTC counter calibration circuitry compensates for 32.768kHz crystal frequency inaccuracy
• High-precision factory-trimmed internal RC oscillator with 4MHz default frequency
• Slow clock internal RC oscillator as permanent low-power mode device clock
• Two PLLs up to 240MHz for device clock and for USB
• Temperature sensor
• Low-power tamper detection on two inputs
• Sleep, wait and backup modes
• 32bit real-time timer and RTC with calendar, alarm and 32KHz trimming features
• 256bit general purpose backup registers (GPBR)
• One 2-channel 12-bit 1MSPS DAC
• One analogue comparator with flexible input selection, selectable input hysteresis
• 32bit cyclic redundancy check calculation unit (CRCCU)
• Register write protection
• Native support for Atmel QTouch® capacitive touch technology
• Parallel input/output (IO) data capture mode