EC-01G is an NB+GPS module developed by Ai-Thinker. The main chip scheme adopted by the NB part is EC616S. The chip has an ultra-highly integrated NB-IoT SoC, supports ultra-low power consumption, and fully supports the 3GPP Rel14 NB-IoT standard. It is an ultra-high cost-effective NB-IoT chip. It has the following characteristics (NB-IoT):
- Integrated radio frequency transceiver, PA, radio frequency filter, antenna switch and power management.
- Excellent communication performance and stability in various wireless environments.
- Excellent power consumption performance in various modes (PSM, DRX, eDRX, connected state).
- Unique MCU mode, providing lower working current and shorter wake-up time.
The main chip solution adopted by the GPS part of the EC-01G module is AT6558R. This chip is a high-performance BDS/GNSS multi-mode satellite navigation receiver SoC single chip, on-chip integrated radio frequency front end, digital baseband processor, 32-bit RISC CPU, power management function. The chip supports a variety of satellite navigation systems, including China’s Beidou satellite navigation system BDS, the United States‘ GPS, and Russia’s GLONASS, and can realize multi-system joint positioning.
It has the following characteristics (GPS):
- Support BDS/GPS/GLONASS multi-system joint positioning and single-system independent positioning.
- With active antenna detection and protection.
- RTC and backup circuit power supply can be as low as 1.4V
- BDS/GPS dual-mode continuous operation.
Features:
CPU:
- Cortex-M3, support MPU
- Configurable CPU frequency, up to 204MHz
- 8-channel DMA
Memory:
- 4MB on-chip NOR flash
- 272KB on-wafer SRAM, divided into 256KB and 16KB
- 16KB instruction cache
System:
- Flexible configuration support 1.8/2.8/3.3V IO
- Clock source: 26MHz TCXO or DCXO, 32.768KHz crystal oscillator
- 1 external wake-up source (interrupt)
- Unique MCU mode, in this mode, the internal RC oscillator is used as the clock, and the power consumption is lower
- LOG port, UNILOG
- Debug port, SWD
Peripherals:
- 16 GPIO
- 3 UART, 2 SSP, 2 I2C
- 6 PWM, 6 Timers,6 GPIO counter,1 WDG
- 32KHz RTC timer
- USIM, support Esim
- LPUART
- 4-channel 12-bit AUXADC
- Temperature sensor
- Battery voltage monitoring
Low power consumption:
- Unique low-power architecture, 4-level sleep mode
- PSM: 800nA
- DRX (2.56s): typical value 110uA
- RX: typical value 10mA
- TX: typical value 24mA
Communication:
- Totally support 3GPP R14 NB-IoT
- Category NB2, 2-HARQ
- Multi-tone NPUSCH
- Anchor and non-anchor carrier
- In-band same/different PCI, guardband, standalone
- Multi-carrier paging, NPRACH
- Positioning: OTDOA & ECID
- ROHC, RAI, multiple-DRB, RRC connection re-establish
- SC-PTM (need SW upgrade)
RF:
- Support frequency band: 3, 5, 8
- Chip integrated PA, support APT function
- Chip integrated RF transceiver filter and antenna switch
- Power rating 3
Safety:
- Hardware encryption and decryption module(AES, SHA)
- Secure boot
- flash encryption
- True random number generator
Application:
- Support open-CPU
- The software complies with the CMSIS architecture
- Support main cloud services
- IPv4, IPv6 and non-IP
- UDP, TCP
- DTLS, TLS, SSL
- MQTT, CoAP, HTTP(S)
- LWM2M
- Support FOTA
Voltage range:
- 3.3V to 4.5V
Specifications:
- Model: EC-01G
- Package: SMD-54
- Size: 19.2*18.8*2.8(±0.2)MM
- Antenna: External antenna
- Spectrum Range: Band3, Band5, Band8
- Operating Temperature: -40 °C ~ 85 °C
- Storage Environment: -40 °C ~ 125 °C , < 90%RH
- Power Supply Range: Supply voltage 3.3V ~ 4.5V, current >500mA
- Support Interface: SSP/UART/I2C/PWM/ADC/GPIO
- Serial Port Rate: Support 110 ~ 4608000 bps ,default 9600 bps
- Safety: AES/SHA
- Flash: 4MB NOR flash
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