5G HUB BG77, Technical And User Manual

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USB Dongle Rev 1.0
Copyright © 5GHUB.US
2.7 Hardware Specification
Technical Specification
Microcontroller (MCU) Atmel ATSAMD21G18, 32-Bit ARM Cortex
M0+
Clock Speed 48 MHz
Flash Memory 256 KB
SRAM 32 KB
NB-IoT Module Quectel BG77
Dimension 30 mm (width) by 65 mm (length)
Weight 22 grams
Power Supply USB (5V)
LED LED1, LED2, LED3, Status LED, Netlight LED
Interfacing Logic Voltage Level (Operating
Voltage)
3.3V
Voltage output 5V, 3.3V
RESET buttons Two; one for MCU and one for BG77
User-defined Button 1 connected to MCU
USB Switch
1 switch to connect to MCU directly or BG77
directly
General-purpose digital I/O Pins
14 (A0-A5, PA6, PA7, SS, MOSI, MISO, SCK, SDA,
SCL)
GPIO 2 connected to BG77
ADC 2 connected to BG77
USB 1
I
2
C 2 (1 connected to BG77)
SPI 1
UART 1
ADC pins 6 (8/10/12-bit ADC channels)
DAC pin 1 (10-bit DAC)
External interrupts 14 (All general-purpose PINs)
PWM pin 6
DC Current per I/O Pin 10 mA
JTAG Debug Cortex Debug Connector (Single Wire Debug)
USIM Nano
GNSS GPS, GLONASS, BeiDou/Compass, Galileo, QZSS
Antenna 1 main antenna and 1 GPS antenna
Band
LTE-FDD, B1/B2/B3/B4/B5/B8/B12/
B13/B18/B19/B20/B26/B28
LTE-TDD: B39 (for Cat M1 only)
Certification FCC, CE
Mobile Operator Certification Verizon and currently for AT&T
Notes:
- UART can be programmed through any of general-purpose pins.
- SPI can be programmed through any of general-purpose pins.