MICROCHIP ATSAMG55J19A-MU

The Atmel | SMART SAM G55 is a series of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor with FPU (Floating Point Unit). It operates at a maximum speed of 120 MHz and features 512 Kbytes of Flash and up to 176 Kbytes of SRAM. The peripheral set includes eight flexible communication units comprising USARTs, SPIs and I²C -bus interfaces (TWIs), two three-channel general-purpose 16-bit timers, two I²S controllers, one-channel pulse density modulation, one 8-channel 12-bit ADC, one real-time timer (RTT) and one real-time clock (RTC), both located in the ultra low-power backup area.

The Atmel | SMART SAM G55 devices have three software-selectable low-power modes: Sleep, Wait and Backup. In Sleep mode, the processor is stopped while all other functions can be kept running. In Wait mode, all clocks and functions are stopped but some peripherals can be configured to wake up the system based on events, including partial asynchronous wakeup (SleepWalking™). In Backup mode, RTT, RTC and wakeup logic are running.

For power consumption optimization, the flexible clock system offers the capability of having different clock frequencies for some peripherals. Moreover, the processor and bus clock frequency can be modified without affecting the peripheral processing.

The real-time event management allows peripherals to receive, react to and send events in Active and Sleep modes without processor intervention.

The SAM G55 devices are general-purpose low-power microcontrollers that offer high performance, processing power and small package options combined with a rich and flexible peripheral set. With this unique combination of features, the SAM G55 series is suitable for a wide range of applications including consumer, industrial control and PC peripherals.

The device operates from 1.62V to 3.6V and is available in three packages: 49-pin WLCSP, 64-pin QFN and 64-pin LQFP.

• Core ARM Cortex-M4 with up to 16 Kbytes SRAM on I/D bus providing 0 wait state execution at up to 120 MHz
• Memory Protection Unit (MPU)
• DSP Instructions
• Floating Point Unit (FPU)
• Thumb®-2 instruction set
• Up to 512 Kbytes embedded Flash
• Up to 176 Kbytes embedded SRAM
• 8 Kbytes ROM with embedded boot loader, single-cycle access at full speed
• Embedded voltage regulator for single-supply operation
• Power-on reset (POR) and Watchdog for safe operation
• Quartz or ceramic resonator oscillators: 3 to 20 MHz with clock failure detection and 32.768 kHz for RTT or system clock
• High-precision 8/16/24 MHz factory-trimmed internal RC oscillator. In-application trimming access for frequency adjustment
• Slow clock internal RC oscillator as permanent low-power mode device clock
• PLL range from 48 MHz to 120 MHz for device clock
• PLL range from 24 MHz to 48 MHz for USB device and USB OHCI
• Up to 30 peripheral DMA (PDC) channels
• 256-bit General-Purpose Backup Registers (GPBR)
• 16 external interrupt lines
• 8 flexible communication units supporting: USART, SPI, Two-wire Interface (TWI) featuring TWI masters and high-speed TWI slaves
• Crystal-less USB 2.0 Device and USB Host OHCI with On-chip Transceiver
• 2 Inter-IC Sound Controllers (I²S)
• 1 Pulse Density Modulation Interface (PDMIC) (supports up to two microphones)
• 2 three-channel 16-bit Timer/Counters (TC) with capture, waveform, compare and PWM modes
• 1 48-bit Real-Time Timer (RTT) with 16-bit prescaler and 32-bit counter
• 1 RTC with calendar and alarm features
• 1 32-bit Cyclic Redundancy Check Calculation Unit (CRCCU)
• Up to 48 I/O lines with external interrupt capability (edge or level), debouncing, glitch filtering and ondie series resistor termination. Individually programmable open-drain, pull-up and pull-down resistor and synchronous output
• Two PIO Controllers provide control of up to 48 I/O lines
• One 8-channel ADC, resolution up to 12 bits, sampling rate up to 500 ksps
• 49-lead WLCSP
• 64-lead LQFP
• 64-lead QFN
• Operating Temperature Range Industrial (-40℃ to +85℃)

• consumer
• industrial control
• PC peripherals