FSC-BT3131 CC2340R5 BLE 5.3 Module
FSC-BT3131 is a wireless microcontroller (MCU) optimized for Bluetooth 5.3 low energy applications, boasting very low active RF and MCU current consumption for extended battery life, suitable for small coin cell and energy-harvesting setups. Powered by an ARM® Cortex®-M0+ core running at 48 MHz, it features a rich peripheral set including an ultra-low power sensor controller, ideal for interfacing external sensors and collecting data autonomously while conserving power. This makes FSC-BT3131 ideal for applications requiring long battery life, compact size, and ease of integration. It supports GAP, ATT/GATT, SMP, and L2CAP profiles, and integrates a Baseband controller in a small package with an integrated chip antenna, offering flexibility in product design.
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- 2.4GHz RF transceiver compatible with Bluetooth Low Energy (BLE) 5.3 specifications
- Link Budget of 102 dB for BLE
- Integrate MCU to execute Bluetooth protocol stack
- Postage stamp sized form factor
- Low power consumption
- Supports Class 1.5 (up to +7 dBm)
- Default UART baud rate up to 3 Mbps
- Supports UART, I²C, and SPI interfaces
- Supports the OTA upgrade mode
- Supports LE HID and all BLE Bluetooth stack profiles
| Categories | Features | Implementation |
|---|---|---|
| Wireless Specification | Chipset | CC2340R5 |
| Bluetooth Version | BLE 5.3 | |
| Frequency | 2.402 ~ 2.480 GHz | |
| Transmit Power | +7 dBm (Max.) | |
| Receive Sensitivity | -100 dBm (Typ.) | |
| Raw Data Rates (Air) | 2 Mbps (Bluetooth 5.3) | |
| Host Interface and Peripherals | UART | TX, RX, CTS, RTS |
| General Purpose I/O | ||
| Baudrate up to 3 Mbps | ||
| I²C | 1 (configurable from GPIO total), up to 400 Kbps | |
| SPI | Primary Mode: SPI clock frequency 12 MHz Max. （1.71 < VDDS < 3.8） | |
| Secondary Mode: SPI clock frequency 8 MHz Max. （2.7 < VDDS < 3.8） | ||
| SCK Duty Cycle50Typ.% | ||
| Profiles | Class Bluetooth | No Support |
| Bluetooth Low Energy | GATT Client & Peripheral - Any Custom Services | |
| BT 5.3 Specifications | ||
| MFi Support | ||
| Maximum Connections | Classic Bluetooth | No Support |
| Bluetooth Low Energy | 1 Client (TBD) | |
| FW upgrade | Over the Air | |
| Xds | ||
| Supply Voltage | Supply | 1.71V ~ 3.8V |
| Power Consumption | Max Peak Current (TX Power @ +7 dBm): < 11.0 mA | |
| Max Peak Current (RX): 5.3 mA | ||
| Standby Doze (Wait event) :< 0.7 uA (TBD) | ||
| Deep Sleep < 0.7 uA (RTC Running and RAM/CPU Retention) (TBD) | ||
| Physical | Dimensions (mm) | 15.2 × 25.2 × 2.4; Pad Pitch 1.27 |
| Environmental | Operating | -40°C ~ +125°C |
| Storage | -40°C ~ +125°C | |
| Miscellaneous | Lead Free | Lead-free and RoHS compliant |
| Warranty | One Year | |
| Humidity | 10% ~ 90% non-condensing | |
| MSL Grade | MSL 3 | |
| ESD Grade | Human Body Model | All pins: ±1000V |
| Charged device model | RF pins/Non-RF pins: ±250V |
