The RC355A is an Ultra-low power, full performance, cost-effective Bluetooth low energy module based on the BluenRG-LP SoC from ST Semiconductor. With an ARM Cortex-M0, embedded 2.4GHz transceiver, and integrated antenna, the RC355A provides a complete RF solution with no additional RF design, allowing faster time to market. Providing full use of the BluenRG-LP’s capabilities and peripherals, the RC355A can power the most demanding applications, all while simplifying designs and reducing BOM costs.It is compliant with Bluetooth® Low Energy SIG core specification version 5.2 addressing point-to-point connectivity and Bluetooth Mesh networking and allows large-scale device networks to be established in a reliable way. It targets 2.4-GHz Bluetooth low energy systems, proprietary 2.4-GHz systems, Human-Interface Devices (keyboard, mouse, and remote control), sports and leisure equipment, mobile phone accessories and consumer electronics.

Key Features

lBluetooth Low Energy system-on-chip supporting Bluetooth 5.2 specifications

· 2 Mbps data rate

· Long range (Coded PHY)

· Advertising extensions

· Channel selection algorithm #2

· GATT caching

l Radio

· RX sensitivity level: -97 dBm @ 1 Mbps, -104 dBm @ 125 kbps (long range)

· Programmable output power up to +8 dBm (at antenna connector)

· Data rate supported: 2 Mbps, 1 Mbps, 500 kbps and 125 kbps

· 128 physical connections

· Integrated balun

· Support for external PA

· BlueNRG core coprocessor (DMA based) for Bluetooth Low Energy timing critical operation

· 2.4 GHz proprietary radio driver

· Suitable for systems requiring compliance with the following radio frequency regulations: ETSI EN 300 328, EN 300 440, FCC CFR47 part 15, ARIB STD-T66

l Ultra-low power radio performance

· 10 nA in SHUTDOWN mode (1.8 V)

· 0.6 uA in DEEPSTOP mode (with external LSE and BLE wake-up sources, 1.8 V)

· 0.9 uA in DEEPSTOP mode (with internal LSI and BLE wake-up sources, 1.8 V)

· 4.3 mA peak current in TX (@ 0 dBm, 3.3 V)

· 3.4 mA peak current in RX (@ sensitivity level, 3.3V)

l High performance and ultra-low power Cortex-M0+ 32-bit, running up to 64 MHz

l Dynamic current consumption: 18 µA/MHz

l Operating supply voltage: from 1.7 to 3.6 V

l -40 ºC to 105 ºC temperature range

l Supply and reset management

· High efficiency embedded SMPS step-down converter with intelligent bypass mode

· Ultra-low power power-on-reset (POR) and power-down-reset (PDR)

· Programmable voltage detector (PVD)

l Clock sources

· Fail safe 32 MHz crystal oscillator with integrated trimming capacitors

· 32 kHz crystal oscillator

· Internal low-power 32 kHz RO

l On-chip non-volatile Flash memory of 256 kB

l On-chip RAM of 64 kB or 32 kB

l One-time-programmable (OTP) memory area of 1 kB

l Embedded UART bootloader

l Ultra-low power modes with or without timer and RAM retention

l Quadrature decoder

l Enhanced security mechanisms such as:

· Flash read/write protection

· SWD disabling

· Secure bootloader

l Security features

· True random number generator (RNG)

· Hardware encryption AES maximum 128-bit security co-processor

· HW public key accelerator (PKA)

· CRC calculation unit

· 64-bit unique ID

l System peripherals

· 1x DMA controller with 8 channels supporting ADC, SPI, I2C, USART and LPUART

· 1x SPI

· 2x SPI/I2S

· 2x I2C (SMBus/PMBus)

· 1x PDM (digital microphone interface)

· 1x LPUART

· 1x USART (ISO 7816 smartcard mode, IrDA, SPI Master and Modbus)

· 1x independent WDG

· 1x real time clock (RTC)

· 1x independent SysTick

· 1x 16-bit, 6 channel advanced timer

l Up to 32 fast I/Os

· 28 of them with wake-up capability

· 31 of them 5 V tolerant

l Analog peripherals

· 12-bit ADC with 8 input channels, up to 16 bits with a decimation filter

· Battery monitoring

· Analog watchdog

· Analog Mic I/F with PGA

l Development support

· Serial wire debug (SWD)

· 4 breakpoints and 2 watchpoints

l All packages are ECOPACK2 compliant

Applications

· Smart toys

· Fitness equipment

· Environmental sensor nodes

· Passive key-less entry (PKE)

· Smart door locks

· Phone accessories

· Health-care equipment

· Smart lighting

· Energy harvesting

· Thermometer

· Human input devices

· Sports equipment

· Wearable

Module Parameters