BlueNRG-LPS

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Programmable Bluetooth Low Energy 5.3 Wireless SoC

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Product overview

Description

The BlueNRG-LPS is an ultra-low power programmable Bluetooth® Low Energy wireless SoC solution. It embeds STMicroelectronics’s state-of-the-art 2.4 GHz radio IPs, optimized for ultra-low-power consumption and excellent radio performance, for unparalleled battery lifetime. It is compliant with Bluetooth Low Energy SIG core specification version 5.3 addressing point-to-point connectivity and Bluetooth Mesh networking and allows large-scale device networks to be established in a reliable way. The BlueNRG-LPS is also suitable for 2.4 GHz proprietary radio wireless communication to address ultra-low latency applications.

The BlueNRG-LPS embeds a Arm® Cortex®-M0+ microcontroller that can operate up to 64 MHz and also the BlueNRG core co-processor (DMA based) for Bluetooth Low Energy timing critical operations.

The main Bluetooth Low Energy 5.3 specification supported features are:

2 Mbps data rate, long range (Coded PHY), advertising extensions, channel selection algorithm #2, GATT caching, Direction Finding (AoA/AoD), hardware support for simultaneous connection, master/slave and multiple roles simultaneously, extended packet length support, LE Ping procedure, periodic advertising and periodic advertising sync transfer, LE power control and path loss monitoring.

In addition, the BlueNRG-LPS provides enhanced security hardware support by dedicated hardware functions:

True random number generator (RNG), encryption AES maximum 128-bit security co-processor, public key accelerator (PKA), CRC calculation unit, 64-bit unique ID, flash memory read and write protection.

The public key acceleration (PKA) supports the modular arithmetic including exponentiation with maximum modulo size of 3136 bits and the elliptic curves over prime field scalar multiplication, ECDSA signature, ECDSA verification with maximum modulo size of 521 bits CRC calculation unit.

The BlueNRG-LPS can be configured to support standalone or network processor applications. In the first configuration, the BlueNRG-LPS operates as a single device in the application for managing both the application code and the Bluetooth Low Energy stack.

The BlueNRG-LPS embeds high-speed and flexible memory types:

Flash memory of 192 Kbytes, RAM memory of 24 Kbytes, one-time-programmable (OTP) memory area of 1 Kbyte, ROM memory of 7 Kbytes (ST reserved area).

Direct data transfer between memory and peripherals and from memory-to-memory is supported by eight DMA channels with a full flexible channel mapping by the DMAMUX peripheral.

The BlueNRG-LPS embeds a 12-bit ADC, allowing measurements of up to eight external sources and up to three internal sources, including battery monitoring and a temperature sensor.

The BlueNRG-LPS has a low-power RTC and three general purpose 16-bit timers.

The BlueNRG-LPS features standard and advanced communication interfaces:

1x SPI/I2S, 1x LPUART, 1x USART supporting ISO 7816 (smartcard mode), IrDA and Modbus mode, 1x I2C supporting SMBus/PMBus.

The BlueNRG-LPS operates in the -40 to +105 °C temperature range from a 1.7 V to 3.6 V power supply. A comprehensive set of power-saving modes enables the design of low-power applications.

The BlueNRG-LPS integrates a high efficiency SMPS step-down converter and an integrated PDR circuitry with a fixed threshold that generates a device reset when the VDD drops under 1.65 V.

The BlueNRG-LPS comes in different package versions supporting up to:

20 I/Os for the QFN32 package. 20 I/Os for the WLCSP36 package.

  • All features

    • Bluetooth® Low Energy system-on-chip supporting Bluetooth 5.3 specifications
      • 2 Mbps data rate
      • Long range (Coded PHY)
      • Advertising extensions
      • Channel selection algorithm #2
      • GATT caching
      • Direction finding (AoA/AoD)
      • LE ping procedure
      • Periodic advertising and periodic advertising sync transfer
      • LE L2CAP connection-oriented channel
      • LE power control and path loss monitoring
    • 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 and LNA
      • 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
      • Available integrated passive device (IPD) companion chip for optimized matching and filtering
    • Ultra-low power radio performance
      • 8 nA in SHUTDOWN mode (1.8 V)
      • 0.8 µA in DEEPSTOP mode (with external LSE and BLE wake-up sources, 1.8 V)
      • 1.0 µA 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)
    • High performance and ultra-low power Arm® Cortex®-M0+ 32-bit, running up to 64 MHz
    • Dynamic current consumption: 14 µA/MHz
    • Operating supply voltage: from 1.7 to 3.6 V
    • -40 ºC to 105 ºC temperature range
    • 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)
    • Clock sources
      • 64 MHz PLL
      • Fail safe 32 MHz crystal oscillator with integrated trimming capacitors
      • 32 kHz crystal oscillator
      • Internal low-power 32 kHz RO
    • On-chip non-volatile flash memory of 192 Kbytes
    • On-chip RAM of 24 Kbytes + 4 Kbytes PKA RAM
    • One-time-programmable (OTP) memory area of 1 Kbytes
    • Embedded UART bootloader
    • Ultra-low power modes with or without timer and RAM retention
    • Quadrature decoder
    • Enhanced security mechanisms such as:
      • Flash read/write protection
      • SWD disabling
      • Secure bootloader
    • Security features
      • True random number generator (RNG)
      • Hardware encryption AES maximum 128-bit security co-processor
      • HW public key accelerator (PKA)
      • Cryptographic algorithms: RSA, Diffie-Helman, ECC over GF(p)
      • CRC calculation unit
      • 64-bit unique ID
    • System peripherals
      • 1x DMA controller with 8 channels supporting ADC, SPI-I2S, I2C, USART, LPUART, TIMERS
      • 1x SPI with I2S interface multiplexed
      • 1x I2C (SMBus/PMBus)
      • 1x LPUART (low power)
      • 1x USART (ISO 7816 smartcard mode, IrDA, SPI Master and Modbus)
      • 1x independent WDG
      • 1x real-time clock (RTC)
      • 1x independent SysTick
      • 1x 16-bits, four channel general purpose timer
      • 2x 16-bits, two channel general purpose timer
      • Infrared interface
    • Up to 20 fast I/Os
      • All of them with wake-up capability
      • All of them retain state in low-power
      • All of them 5 V tolerant
    • Analog peripherals
      • 12-bit ADC with 8 input channels, up to 16 bits with down sampler
      • Battery monitoring
      • Analog watchdog
    • Development support
      • Serial wire debug (SWD)
      • 4 breakpoints and 2 watchpoints
    • All packages are ECOPACK2 compliant

Circuit Diagram

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
BLUENRG-332AC
Active
VFQFPN 32 5x5x1.0 mm Industrial Ecopack2
BLUENRG-332AT
Active
VFQFPN 32 5x5x1.0 mm Industrial Ecopack2
BLUENRG-332VC
Active
WLCSP MSL1 Industrial N/A
BLUENRG-332VT
Active
WLCSP MSL1 Industrial N/A

BLUENRG-332AC

Package:

VFQFPN 32 5x5x1.0 mm

Material Declaration**:

Marketing Status

Active

Package

VFQFPN 32 5x5x1.0 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BLUENRG-332AT

Package:

VFQFPN 32 5x5x1.0 mm

Material Declaration**:

Marketing Status

Active

Package

VFQFPN 32 5x5x1.0 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

BLUENRG-332VC

Package:

WLCSP MSL1

Material Declaration**:

Marketing Status

Active

Package

WLCSP MSL1

Grade

Industrial

RoHS Compliance Grade

N/A

BLUENRG-332VT

Package:

WLCSP MSL1

Material Declaration**:

Marketing Status

Active

Package

WLCSP MSL1

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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