Instrukcja obsługi Microchip ATSAMR34J16


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SAM R34/R35
SAM R34/R35 Low Power LoRa® Sub-GHz SiP Datasheet
Introduction
The SAM R34/R35 is a family of ultra-low power microcontrollers combined with a UHF transceiver
communication interface. It uses a 32-bit ARM® Cortex® -M0+ processor and offers up to 256 KB of
Flash and 40 KB 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.
The SAM R34 includes an integrated microcontroller with USB and the UHF transceiver, making it
suitable for USB dongle applications or for software updates via USB. The SAM R35 offers the same
microcontroller functions along with the UHF transceiver without the USB interface.
Features
Operational Features
• Processor:
ARM Cortex -M0+ CPU running at up to 48 MHz (2.46CoreMark®/MHz)
Single-Cycle Hardware Multiplier
Micro Trace Buffer (MTB)
• Memory:
In-System Self-Programmable Flash Memory, with options for sizes - 256 KB, 128 KB or 64 KB
Static Random Access Memory (SRAM) with options for sizes - 32 KB, 16 KB or 8 KB
Low power SRAM Memory with option for sizes - 4 KB or 8 KB
• System:
Power-on Reset (POR) and Brown-out Reset
Internal and External Clock Options with 48 MHz Digital Frequency Locked Loop (DFLL48M)
and 48 MHz to 96 MHz Fractional Digital Phase Locked Loop (FDPLL96M)
External Interrupt Controller (EIC)
Up to 16 External Interrupts
One Non-Maskable Interrupt
Two Pin Serial Wire Debug (SWD) Programming, Test and Debugging Interfaces
Operating Voltage: 1.8V- 3.6V
Low Power Consumption
– Transceiver:
RX = 16 mA (typical)
RFO_HF = 33 mA (typical)
PA_BOOST = 95 mA (typical)
© 2019 Microchip Technology Inc. Datasheet DS70005356C-page 1
– MCU:
Idle, Standby, and Backup Sleep Modes
SleepWalking peripherals
Temperature Range: -40°C to +85°C (Industrial)
RF/Analog Features
Integrated LoRa Technology Transceiver:
Tri-band Coverage
137 MHz to 175 MHz
410 MHz to 525 MHz
862 MHz to 1020 MHz
+20 dBm (100 mW) Max Power (VDDANA > 2.4 VDC)
+17 dBm (50 mW) Max Power (Regulated PA)
+13 dBm (20 mW) High-efficency PA
High Sensitivity:
Down to -136 dBm (LoRaWAN protocol compliant modes)
Down to -148 dBm (proprietary narrowband modes)
Up to 168 dB Maximum Link Budget
Robust Front-End: IIp3 = -11 dBm
Excellent Blocking Immunity
Low RX Current of 17 mA (typical)
Fully Integrated Synthesizer with a Resolution of 61 Hz
LoRa Technology, (G)FSK, (G)MSK and OOK Modulation
Preamble Detection
127 dB Dynamic Range RSSI
Automatic RF Sense and CAD with Ultra-Fast Automatic Frequency Control (AFC) Packet Engine up
to 256 bytes with Cyclic Redundancy Check (CRC)
Peripheral Information
16-Channel Direct Memory Access Controller (DMAC)
12-Channel Event System
Three 16-bit Timer/Counters (TC), configurable as either of the following:
One 8-bit TC with compare/capture channels
One 16-bit TC with compare/capture channels
One 32-bit TC with compare/capture channels, by using two TCs
Two 24-bit and one 16-bit Timer/Counters for Control (TCC), with Extended Functions:
Up to four compare channels with optional complementary output
Generation of synchronized Pulse Width Modulation (PWM) pattern across port pins
Deterministic fault protection, fast decay and configurable dead-time between complementary
output
Dithering that increases resolution with up to five bit and reduces quantization error
32-bit Real Time Counter (RTC) with Clock/Calendar Function
Watchdog Timer (WDT)
SAM R34/R35
© 2019 Microchip Technology Inc. Datasheet DS70005356C-page 2
CRC-32 Generator
One Full-Speed (12 Mbps) Universal Serial Bus (USB) 2.0 Interface:
Embedded host and device function
Eight endpoints
Up to Five Serial Communication Interfaces (SERCOM), each configurable to operate as either of the
following:
USART with full-duplex and single-wire half-duplex configuration
I2C up to 3.4 MHz
Serial Peripheral Interface (SPI)
Local Interconnect Network (LIN) Slave
One 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to Eight External Channels:
Differential and single-ended input
Automatic offset and gain error compensation
Oversampling and decimation in hardware to support 13-, 14-, 15-, or 16-bit resolution
Two Analog Comparators (AC) with Window Compare Function
Peripheral Touch Controller (PTC):
18-channel capacitive touch and proximity sensing
Package Information
27 Programmable I/O Pins
64 Lead Ball Grid Array (BGA)
SAM R34/R35
© 2019 Microchip Technology Inc. Datasheet DS70005356C-page 3


Specyfikacje produktu

Marka: Microchip
Kategoria: Niesklasyfikowane
Model: ATSAMR34J16

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