BLUENRG-355MC

RF Transceiver ICS Overview

The BLUENRG-355MC is a programmable Bluetooth Low Energy 5.2/5.3 wireless System-on-Chip (SoC) by STMicroelectronics. It integrates an ARM Cortex-M0+ core, a 2.4 GHz RF transceiver with 8 dBm output power, and MEMS sensors including an accelerometer and gyroscope. The device supports 2 Mbps data rates and Long Range via Coded PHY. It features 256 kB of Flash memory and 64 kB of RAM within a 48-QFN (6x6 mm) package. Operating voltage ranges from 1.7 V to 3.6 V, with an operating temperature range of -40°C to 105°C.

RF Transceiver ICS Feature Summary

• Integrates BLE 5.2/5.3 radio, ARM Cortex-M0+ processor, and MEMS inertial sensors on a single chip
• Supports high-speed 2 Mbps data transmission and extended coverage using Coded PHY
• Provides flexible serial interfaces including SPI, I2C, USART, ADC, and PDM for peripheral connectivity

RF Transceiver ICS Applications

• Wearable devices requiring motion tracking and low-power connectivity
• Smart home sensors utilizing integrated inertial measurement units
• Industrial IoT nodes needing robust long-range communication capabilities

RF Transceiver ICS Procurement Notes

Verify the specific package variant, as the BLUENRG-355MC is available in both 32-pin and 48-pin QFN configurations. Confirm the required operating temperature grade, distinguishing between commercial (-40°C to 85°C) and industrial (-40°C to 105°C) versions. Ensure compatibility with the BlueNRG-LP SDK for firmware development and check RoHS compliance status for your target market regulations.

RF Transceiver ICS Selection Notes

Select this component when a unified solution for wireless communication and motion sensing is required to minimize PCB area. The integration of MEMS sensors eliminates the need for external accelerometers or gyroscopes. Choose the appropriate temperature grade based on environmental conditions. Consider the 48-pin package if additional GPIOs or interface pins are necessary compared to the 32-pin alternative.

RF Transceiver ICS Part Context

The BLUENRG-355MC belongs to the BlueNRG-LP family, designed for ultra-low power applications. It differs from standard BLE transceivers by embedding a microcontroller and MEMS sensors, simplifying hardware design for wearable and sensor-heavy products. This integration reduces bill-of-materials complexity and power consumption associated with multi-chip solutions.

RF Transceiver ICS Replacement Considerations

The BLUENRG-355AC serves as a similar alternative within the same family but typically operates at a lower temperature range (-40°C to 85°C). Verify pinout compatibility and software library support before substitution, as package variations may exist between these models.