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STMicroelectronics BLUENRG-332VC
- Part No.:
- BLUENRG-332VC
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 36-XFBGA, WLCSP
- Datasheet:
-
BLUENRG-332VC.pdf
- Description:
- IC RF TXRX+MCU BLE 36WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:139
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Product details
Overview
BLUENRG-332VC from STMicroelectronics is a programmable Bluetooth® Low Energy 5.3 System-on-Chip integrating an Arm® Cortex®-M0+ core (64 MHz), 192 KB flash, 24 KB RAM, and a dedicated BlueNRG radio coprocessor. It delivers -104 dBm RX sensitivity at 125 kbps (Coded PHY), +8 dBm programmable TX output, and supports AoA/AoD direction finding for precise indoor positioning in asset tracking and real-time locating systems.
For engineers reviewing the BLUENRG-332VC datasheet, BLUENRG-332VC pinout, BLUENRG-332VC application, or BLUENRG-332VC equivalent, key selection criteria include BLE 5.3 feature support (Periodic Advertising Sync Transfer, LE Power Control), ultra-low power modes (0.8 µA DEEPSTOP with LSE), integrated SMPS regulator, and hardware security accelerators (PKA, AES-128, RNG) for secure firmware updates and device authentication.
Technical Context
The BLUENRG-332VC implements a dual-processor architecture: the Cortex-M0+ handles application logic and non-time-critical BLE stack layers, while the BlueNRG core coprocessor-DMA-based and timing-dedicated-manages radio scheduling, packet processing, and PHY-layer operations. This partitioning enables deterministic BLE timing without CPU intervention.
Its RF subsystem uses a direct-modulation TX path and low-IF RX architecture with integrated balun, supporting 125/500 kbps Coded PHY, 1/2 Mbps LE PHY, and hardware-accelerated direction finding (AoA/AoD) via IQ sampling. The chip includes dedicated analog front-end blocks for RSSI, path loss monitoring, and LE power control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BLE Version | Bluetooth 5.3 compliant: enables Periodic Advertising Sync Transfer for mesh synchronization and LE Ping for connection health monitoring. |
| RX Sensitivity | -104 dBm @ 125 kbps (Coded S=8): extends range to >1 km in open field with robust interference rejection. |
| TX Output Power | Programmable up to +8 dBm at antenna connector: allows tuning for regulatory compliance (FCC/ETSI) and battery life optimization. |
| Core MCU | Arm Cortex-M0+, 64 MHz max: delivers 14 µA/MHz efficiency and supports real-time sensor fusion and local decision-making. |
| Memory | 192 KB flash + 24 KB SRAM + 1 KB OTP: sufficient for BLE stack, application code, and secure key storage with write protection. |
| Security Hardware | Dedicated PKA (3136-bit modular arithmetic), AES-128 co-processor, RNG, and 64-bit UID: enables FIPS-compliant key generation and OTA update authentication. |
| Power Modes | 0.8 µA DEEPSTOP (LSE active), 8 nA SHUTDOWN: enables multi-year operation on coin-cell batteries in periodic sensing applications. |
Pinout & Package
BLUENRG-332VC is packaged in a WLCSP36 (2.652 × 2.592 mm) with 36 solder bumps. The package supports up to 20 fast I/Os-all 5 V tolerant, all retaining state in low-power modes, and all capable of wake-up triggering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VDD | Digital power supply | 1.7–3.6 V input powering I/O ring, peripherals, and regulators; connects to external SMPS or LDO. |
| VSSRF | RF ground reference | Mandatory low-inductance connection to PCB ground plane; critical for RF stability and EMI suppression. |
| ANT | Single-ended RF antenna interface | 50 Ω impedance-matched output; integrates balun-no external matching required for basic layouts. |
| PA_EN / LNA_EN | External PA/LNA enable control | GPIO-controlled signals to drive external power amplifier or low-noise amplifier for extended range. |
| OSC_IN / OSC_OUT | 32 MHz crystal oscillator terminals | Connects to external crystal with integrated trimming capacitors; enables precise BLE timing and advertising accuracy. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port supporting programming, real-time tracing, and secure bootloader activation. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated Direction Finding | On-chip IQ sampling and timestamping enable AoA/AoD angle estimation without host CPU overhead or external RFICs. |
| GATT Caching & Connection-Oriented L2CAP | Reduces reconnection latency by >60% and enables reliable file transfer over BLE in industrial sensor networks. |
| Integrated SMPS with Bypass Mode | Configurable 1.2–1.9 V output improves system efficiency by 35% vs. LDO-only supply at 3.3 V input. |
| PKA Accelerator for ECC | Performs ECDSA signature/verification in <15 ms (NIST P-256), enabling secure boot and firmware signing at edge node level. |
| 12-bit ADC with Battery Monitoring | 8-channel SAR ADC with internal references supports simultaneous battery voltage, temperature, and sensor readings in wearable designs. |
Applications
| Asset Tracking & RTLS | Smart Lighting Control |
|---|---|
Use Scenario: Battery-powered BLE tags attached to high-value equipment in warehouses or hospitals. IC Role / Device Role / Timing Role: BLE 5.3 SoC acting as advertiser and direction-finding receiver (AoA) for centimeter-level location resolution. Use Value: Achieves <1 m accuracy using Coded PHY and AoA with 0.8 µA DEEPSTOP current, enabling 5+ year battery life on CR2032. | Use Scenario: Wireless dimming and color-tuning of LED fixtures via smartphone or gateway. IC Role / Device Role / Timing Role: Standalone BLE network processor managing GATT services, periodic advertising, and L2CAP-based firmware updates. Use Value: Leverages LE Power Control to maintain link stability across varying fixture distances while minimizing RF interference in dense lighting deployments. |
| Fitness & Medical Wearables | Industrial Sensor Nodes |
Use Scenario: Compact chest strap or wristband collecting heart rate, motion, and SpO₂ data. IC Role / Device Role / Timing Role: Dual-role SoC functioning as BLE sensor (peripheral) and central (for multi-sensor aggregation) with secure OTA updates. Use Value: Hardware RNG and AES-128 co-processor ensure HIPAA-compliant data encryption and authenticated firmware patches without MCU software overhead. | Use Scenario: Harsh-environment vibration, temperature, and humidity monitors in factory automation. IC Role / Device Role / Timing Role: BLE 5.3 peripheral with periodic advertising sync transfer, operating across -40 °C to +105 °C with integrated RTC and LPUART. Use Value: Uses DEEPSTOP mode with LSE clock to maintain accurate time-stamped sensor logs during 10-second wake intervals, reducing average current to 1.2 µA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth Low Energy SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52840 | ARM Cortex-M4F core, no integrated SMPS, higher TX power (+8 dBm same), lacks hardware AoA sampling engine. | Requires external IQ demodulator for AoA; better suited for compute-heavy applications needing floating-point math. | Select when application demands M4F DSP capability and external RF front-end flexibility outweighs AoA integration. |
| Texas Instruments CC2642R | Same BLE 5.3 features, but uses proprietary RF core (not Arm-based); lower peak RX sensitivity (-102 dBm @ 125 kbps). | Limited memory (352 KB flash), no PKA accelerator; relies on software ECC, increasing OTA update latency. | Select for TI ecosystem compatibility and where moderate sensitivity suffices in cost-sensitive consumer devices. |
Compared with nRF52840 and CC2642R, BLUENRG-332VC uniquely combines hardware AoA acceleration, integrated SMPS, and PKA-based ECC in a compact WLCSP36 package-making it optimal for battery-constrained, location-aware, and security-critical industrial edge nodes.
Availability
BLUENRG-332VC is available at Aetrix Electronics and suitable for asset tracking, smart lighting control, fitness wearables, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BLUENRG-332VC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering microcontrollers, sensors, power management, and wireless solutions for industrial, automotive, and consumer markets.
The BlueNRG-LPS product line targets ultra-low-power, secure, and location-aware IoT endpoints-designed specifically for battery-operated BLE 5.3 applications demanding long lifetime, regulatory compliance, and hardware-rooted trust.
FAQ
What is the maximum supported BLE connection count on BLUENRG-332VC?
The BLUENRG-332VC supports up to 128 physical connections in concurrent master/slave roles. This is enabled by its dedicated BlueNRG core coprocessor and hardware-accelerated link layer, allowing scalable mesh networking and multi-peripheral hub applications without CPU scheduling bottlenecks.
Does BLUENRG-332VC require external components for basic BLE operation?
No external RF components are required for basic operation: the WLCSP36 package integrates a balun and matching network on-die. Only a 32 MHz crystal, decoupling capacitors, and a single-pole antenna are needed. External PA/LNA support is optional and controlled via GPIOs PA_EN/LNA_EN.
How does the integrated SMPS improve system-level power efficiency?
The embedded SMPS reduces average system current by up to 35% compared to LDO-only supply at 3.3 V input. It operates at 4/8 MHz switching frequency, supports programmable output (1.2–1.9 V), and automatically bypasses to direct VDD when input voltage drops below 2.2 V-ensuring seamless transition across battery discharge curves.
Can BLUENRG-332VC operate reliably across the full industrial temperature range?
Yes. BLUENRG-332VC is qualified for -40 °C to +105 °C operation. Its internal oscillators (HSE/LSE/LSI), SMPS regulator, and RF front-end are characterized across this range. The datasheet specifies consistent RX sensitivity (-104 dBm @ 125 kbps) and TX output power (+8 dBm) with ±0.5 dB variation over temperature.
BLUENRG-332VC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 36-XFBGA, WLCSP
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v5.3
- Modulation:
- GFSK
- Frequency:
- 2.4GHz ~ 2.48GHz
- Data Rate (Max):
- 32Mbps
- Power - Output:
- 8dBm
- Sensitivity:
- -104dBm
- Memory Size:
- 192kB Flash, 1kB OTP, 24kB RAM, 7kB ROM
- Serial Interfaces:
- ADC, GPIO, I2C, I2S, JTAG, PCM, PWM, SPI, USART
- GPIO:
- 20
- Voltage - Supply:
- 1.7V ~ 3.6V
- Current - Receiving:
- 3.4 mA
- Current - Transmitting:
- 4.3mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 36-WLCSP (2.65x 2.59)
BLUENRG-332VC FAQ
1.How can I place an order for BLUENRG-332VC through Aetrix?
Please submit a Request for Quotation (RFQ) for BLUENRG-332VC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BLUENRG-332VC reliable?
The price and inventory of BLUENRG-332VC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BLUENRG-332VC is usually 5 days.
3.What payment methods are accepted for BLUENRG-332VC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BLUENRG-332VC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BLUENRG-332VC?
BLUENRG-332VC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BLUENRG-332VC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BLUENRG-332VC?
For technical support, including BLUENRG-332VC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BLUENRG-332VC requirements.
6.How does Aetrix verify that BLUENRG-332VC is sourced from the original manufacturer or authorized distributors?
All BLUENRG-332VC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BLUENRG-332VC meets industry standards.
7.What is the process for return or replacement of BLUENRG-332VC?
All BLUENRG-332VC units undergo pre-shipment inspection (PSI). If there is an issue with BLUENRG-332VC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BLUENRG-332VC part is unused and in its original packaging.
Return procedure for BLUENRG-332VC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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