ATSAMR34J18B-I/7JX

The SAM R34 is a family of ultra-low power microcontrollers combined with a UHF transceiver communication interface. It uses a 32bit ARM® Cortex® -M0+ processor and offers up to 256KB of Flash and 40KB of SRAM, including an area of battery backed-up SRAM. The UHF transceiver supports LoRa® and FSK modulation. LoRa technology is a spread spectrum protocol optimized for low data-rate, ultra-long range signaling. It is ideal for battery-powered remote sensors and controls.

• ARM Cortex -M0+ CPU running at up to 48MHz (2.46CoreMark®/MHz)
• In-System Self-Programmable Flash Memory, with options for sizes - 256KB, 128KB or 64KB
• Static Random Access Memory (SRAM) with options for sizes - 32KB, 16KB or 8KB
• Power-on Reset (POR) and Brown-out Reset
• Internal and External Clock Options with 48MHz Digital Frequency Locked Loop (DFLL48M) and 48MHz to 96MHz Fractional Digital Phase Locked Loop (FDPLL96M)
• Integrated LoRa Technology Transceiver
• 12-Channel Direct Memory Access Controller(DMAC)
• Three 16bit Timer/Counters (TC)
• 32bit Real Time Counter (RTC) with Clock/Calendar Function
• CRC-32 Generator
• Up to Five Serial Communication Interfaces (SERCOM)
• One 12bit, 1 Msps Analog-to-Digital Converter (ADC) with up to Eight External Channels
• Two Analog Comparators (AC) with Window Compare Function

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