1. Product overview

EC-01 is a NB 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：
 Integrated RF transceiver, PA, RF 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

1.1. 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 value10mA
 TX: typical value24mA
 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 level 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 mainstream 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

2. Main parameters

specification：https://docs.ai-thinker.com/_media/nb-iot/ec-01f_specification_english_-zw20210602.pdf

1.EC-01-KIT

2. Description of indicators and buttons  

Ec-01-kit has two indicators: NB indicator and LINK indicator.