SP1ML SPIRIT1 868 and 915 MHz low power RF modules with integrated microcontroller Datasheet - production data Data acquisition equipment Security systems Mobile health and medical Industrial monitor and control Wireless metering, WMBUS Internet of things (IoT) Description The SP1ML-868 and SP1ML-915 are ultra-low power & fully integrated RF modules operating respectively in the 868 MHz SRD and 915 MHz Features ISM bands. Complete RF-ready SPIRIT1 module based The SP1ML module is a compact-size module, on: integrating an on-board antenna with easy-to-use SPIRIT1 low data rate, low power sub-GHz interface, allowing users to easily add wireless transceiver connectivity in designs without requiring in-depth RF experience, and has all necessary FCC STM32L1 Ultra low power microcontroller modular approvals and CE compliance, reducing at 32 MHz (16 kB RAM and 128 kB Flash) time-to-market. BALF-SPI-01D3 868/915 MHz balun with integrated harmonic filter These modules are based on the SPIRIT1 RF Integrated antenna and crystal sub-GHz transceiver (with integrated SMPS), STM32L1 microcontroller, integrated filter/balun Compact size: 14 mm x 13.4 mm x 2.5 mm and chip antenna. The UART host interface 863 to 870 MHz operation (SP1ML-868) allows simple connection to an external 902 to 928 MHz operation (SP1ML-915) microcontroller with a standard firmware, allowing AT commands to facilitate RF configuration, data Operates from a single 1.8 V to 3.6 V supply transmission and reception, using simple point-to- Output power up to +11.6 dBm point communication. Selected STM32L1 GPIO Data rates up to 500 kbps and peripherals are available for interfacing to external devices in the user application. Modulation schemes: 2-FSK, GFSK, GMSK, Advanced features of the SPIRIT1 radio are also OOK, and ASK accessible. The serial wire debug interface Operating temperature: -40 C to 85 C (SWD) is also available. The SP1ML can be used UART interface with AT command set as an open platform, replacing the default firmware with its own application firmware. FCC and CE regulatory approvals The modules are CE compliant and FCC certified (FCC ID S9NSP1ML). Applications Home & building automation Wireless sensor network October 2017 DocID026906 Rev 8 1/31 This is information on a product in full production. www.st.comContents SP1ML Contents 1 Hardware specification . 6 1.1 Recommended operating conditions . 6 1.2 Absolute maximum ratings . 6 1.3 I/O operating characteristics 6 1.4 Current consumption . 7 1.5 RF compliance limits . 7 1.6 Pin assignment 8 1.7 Pin placement . 9 1.8 Internal hardware connection for open platform . 9 1.9 Hardware block diagram . 10 2 Hardware design . 11 2.1 Pin usage 11 2.2 Typical application circuit . 12 Optional functionality . 12 2.3 Layout guidelines . 12 2.4 Recommended footprint 14 2.5 Module reflow installation . 14 3 Module operation 16 3.1 Operating mode 16 3.2 Command mode 16 3.3 Command reference . 16 3.4 Configuration registers . 18 3.5 Information registers . 22 3.6 Example command sequence . 22 23 4 ECOPACK 5 Package mechanical data 23 6 Regulatory compliance 24 2/31 DocID026906 Rev 8