Features
• Programmable Narrow-Band Power Line Communication (NB-PLC) system on chip
• Complies with FCC, CENELEC, ARIB and K.60 regulations
• Embedded NB-PLC modem:
– PLC front-end integrated, including PGA and digital transmission level control
– High performance, programmable engine dedicated to PLC PHY and MAC real-time tasks with dedicated
SRAM memory
– Cryptographic engine supporting AES 128, 192, 256
– Modem secure boot implemented, comprising PLC binary authentication (AES-128 CMAC) and decryption
(AES-128 CBC)
• Fully programmable, standard ARM® 32-bit Cortex®-M4 core running the upper protocol layers and user
application:
– ARM Cortex-M4 with up to 16 Kbytes SRAM on I/D bus providing 0 wait state execution at up to 100 MHz(1)
– Memory Protection Unit (MPU)
– DSP Instructions
– Floating Point Unit (FPU)
– Thumb®-2 instruction set
• Memories:
– 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
• System:
– 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 100 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)
– 15 external interrupt lines
• Peripherals(2):
– 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)
• I/O(2):
– Up to 48 I/O lines with external interrupt capability (edge or level), debouncing, glitch filtering and on-die
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
• Analog:
– One 8-channel ADC, resolution up to 12 bits, sampling rate up to 500 ksps
• Package: available in TFBGA-121
• Temperature Range: Industrial (-40ºC to +85ºC)
Note:
1. 100 MHz with VDDCOREXT100 or with VDDCORE trimmed by regulator.
2. Communication between SAMG55 and PL360 blocks requires some peripherals and GPIOs which will not be
available for other uses. Please, refer to section 5.3 Recommended SAMG55-PL360 Connection for more
information about connection between SAMG55 and PL360 blocks.

Applications
• IoT and Industrial: Smart Lighting, Fire and alarm systems, Solar, Home Automation
• Internet of Energy: Advanced Metering Infrastructure, Smart Grid, Home/Building Energy Management Systems
(HEMS/BEMS), Heating, Ventilation and Air Conditioning (HVAC)