The iM891A-XL radio module operates in the unlicensed 868/915 MHz band and combines a powerful Cortex® M4 controller with the LoRa® transceiver of Semtech® corporation.
With an integrated +22 dBm power amplifier and a sensitivity of -149 dBm, a sensational link budget of approx. 170 dB can be reached. With this, ranges well beyond 15 km can be achieved.
The iM891A-XL supports the wireless M-Bus modes S, C, T, and C/T with packet formats A and B as well as the OMS security modes 5 and 7. In addition, the sophisticated IMST ProLink protocol stack is also available. It combines compliant LoRaWAN® functions and proprietary LoRa functions within one stack.
This makes the iM891A-XL an ideal solution for numerous applications such as meter reading, wireless M-Bus gateway expansion, LPWAN and IoT sensors, as well as home, building, and industrial automation.
- Frequency: 868 MHz / 915 MHz
- Small footprint 16.8 x 18.6 mm
- 32-Bit MCU Arm® Cortex® M4
- Unique device identifier 64-bit UID
- 256 Kbyte flash
- 64 Kbyte RAM
- 128/256 bit AES hardware encryption
- True random number generator (RNG)
- 32 MHz MCU TCXO
- Integrated +22 dBm power amplifier
- Max. sensitivity down to -149 dBm
- Modulations CSS1, LR_FHSS2, (G)FSK
- Spreading factors 5 to 12
- Bandwidth LoRa 7.6–500 kHz
- Ultralow power 1 μA
- Voltage 1.8–3.6 V
- High range > 15 km
対応製品 | STM32WL |
Device Type | 統合型モジュール |
ファンクション | LoRaWAN module |
サイト |
ST製品 |
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