Mediatek introduced MT2625 ARM Cortex-M SoC supporting NB-IoT (aka LTE Cat NB1/NB2) compatible with 3GPP Release 14 last summer, and designed for global cellular IoT devices.
The company has now unveiled a new NB-IoT part with Mediatek MT2621 ARM7 dual-mode IoT SoC that is capable of both NB-IoT R14 and GSM/GPRS connectivity for applications such as smart trackers, wearables, IoT security, smart metering and industrial applications. The chip would allow you to start deploying devices with GSM connectivity, and once available in your locale, switch to the more efficient NB-IoT protocol.
- Processor – Single ARM7 core @ up to 260MHz
- Memory – 160KB + 4MB PSRAM
- Internal Flash
Integrated Baseband, RF, Antenna, and Modem DSP
- NB-IoT ultra-low/low/mid bands defined by 3GPP Rel-14
- Bluetooth 4.2
- Display – LCM interface
- Camera – Camera interface
- Audio – Audio Amplifier
Mediatek is really light on details, but still confirms a single SIM and antenna covers both cellular networks (NB-IoT & GSM) with dual standby functionality (SSDS). This will allows a single UICC and mobile number for both networks, “saving PCB space, simplifying design, minimizing cost and speeding time-to-market”. The company also claims “applications can be built using an easily customizable Linux-based OS”.
You may visit the product page, but you won’t find much there.
Thanks to TLS for the tip.