Low-power Wi-Fi and Bluetooth Low Energy microcontroller SoC integrates a 32-bit single-core RISC-V processor running up to 160 MHz. The device supports 2.4 GHz IEEE 802.11b/g/n Wi-Fi with 20 MHz and 40 MHz bandwidth and Bluetooth 5 LE data rates from 125 Kbps to 2 Mbps. On-chip resources include 400 KB SRAM, 384 KB ROM, 8 KB RTC SRAM, 4096-bit eFuse memory, security accelerators, and 22 configurable GPIOs. The base chip is supplied in a 32-pin 5 mm by 5 mm QFN package and operates from 3.0 V to 3.6 V over a -40 °C to 105 °C ambient range.
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| Product type | Wi-Fi + Bluetooth Low Energy MCU SoC |
| CPU architecture | 32-bit RISC-V single-core |
| Maximum CPU clock | 160MHz |
| CoreMark score at 160 MHz | 483.27CoreMark |
| ROM | 384KB |
| SRAM | 400KB |
| RTC SRAM | 8KB |
| eFuse memory | 4096bit |
| GPIO count | 22 |
| In-package flash | None |
| Wi-Fi standard | IEEE 802.11b/g/n |
| Wi-Fi operating band | 2.4GHz |
| Wi-Fi channel center frequency | 2412 to 2484MHz |
| Wi-Fi bandwidth | 20 and 40MHz |
| Wi-Fi maximum data rate | 150Mbps |
| Wi-Fi transmit power at 802.11b 1 Mbps | 21 typicaldBm |
| Bluetooth standard | Bluetooth 5 LE, Bluetooth mesh |
| Bluetooth LE data rates | 125 Kbps, 500 Kbps, 1 Mbps, 2 MbpsKbps/Mbps |
| Bluetooth LE transmit power range | -24 to 20dBm |
| Recommended input voltage | 3.0 to 3.6V |
| Ambient operating temperature | -40 to 105°C |
| Package | QFN32 (5×5 mm) |
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