BLUENRG-355AT

RF Transceiver ICS Overview

The BLUENRG-355AT is an ultra-low power programmable Bluetooth Low Energy wireless System on Chip (SoC) from STMicroelectronics. It integrates a Cortex-M0 processor with a state-of-the-art 2.4 GHz RF transceiver, supporting the Bluetooth v5.2 protocol. The device operates within a frequency range of 2.4 GHz to 2.4835 GHz and delivers a maximum output power of 8 dBm. It features 256 kB of flash memory and 64 kB of RAM. Electrical specifications include a supply voltage range of 1.7 V to 3.6 V, with typical current consumption of 3.4 mA during reception and 4.3 mA during transmission. The component is housed in a 32-VFQFN package with exposed pad.

RF Transceiver ICS Feature Summary

• Integrates a programmable Bluetooth Low Energy radio with a Cortex-M0 core for efficient wireless processing.
• Supports Bluetooth v5.2 protocol standards for enhanced connectivity and data rates.
• Features ultra-low power consumption characteristics suitable for battery-operated applications.
• Includes comprehensive serial interfaces such as SPI, I2C, USART, and GPIO for peripheral integration.

RF Transceiver ICS Applications

• Wearable health and fitness devices
• Smart home sensors and actuators
• Industrial monitoring equipment

RF Transceiver ICS Procurement Notes

Verify the specific package variant and tape-and-reel configuration against project requirements before ordering. Confirm that the firmware development environment supports the BlueNRG-LP architecture. Ensure compliance with regional radio certification standards for the target market. Check for any recent Product Change Notifications regarding assembly sites or material composition updates.

RF Transceiver ICS Selection Notes

Select this component when a compact SoC solution combining BLE 5.2 connectivity and low-power MCU capabilities is required. It is suitable for designs needing 256 kB of non-volatile storage and multiple digital interfaces. Consider the 32-pin QFN footprint for PCB layout constraints. Evaluate thermal performance given the operating temperature range and surface-mount installation type.

RF Transceiver ICS Part Context

The BLUENRG-355AT belongs to the BlueNRG-LP series, which focuses on ultra-low power wireless connectivity. It serves as a complete solution by embedding the RF front-end and baseband processor on a single die. This integration reduces external component count compared to discrete transceiver and MCU combinations. The series is designed to simplify development through programmable firmware capabilities.

RF Transceiver ICS Replacement Considerations

The BLUENRG-355MT is a related variant offering similar functionality but housed in a 48-pin QFN package. Designers requiring additional GPIOs or interface pins may consider this alternative. Verify pin compatibility and firmware library support when migrating between these package options.