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STMicroelectronics BLUENRG-MSCSP
- Part No.:
- BLUENRG-MSCSP
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 34-XFBGA, WLCSP
- Datasheet:
-
BLUENRG-MSCSP.pdf
- Description:
- IC RF TXRX+MCU BLE 34WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,045
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Product details
Overview
BLUENRG-MSCSP from STMicroelectronics is a Bluetooth 4.2-compliant single-mode BLE network processor in WLCSP34 (2.66 × 2.56 mm) package, integrating ARM Cortex-M0 core, embedded BLE stack (GAP/GATT/SM/L2CAP/LL), +8 dBm RF output, 96 dB link budget, and dual power management (LDO + DC-DC). It serves as a host-independent BLE co-processor for ultra-low-power wearable sensors and coin-cell-powered peripherals.
For engineers reviewing the BLUENRG-MSCSP datasheet, BLUENRG-MSCSP pinout, BLUENRG-MSCSP application, or BLUENRG-MSCSP equivalent, key selection criteria include its SPI-based ACI interface, sub-2 µA sleep current with active stack, programmable TX power (–18 to +8 dBm), and support for simultaneous master/slave roles - all critical for battery-constrained edge nodes.
Technical Context
The device implements a full Bluetooth Low Energy protocol stack on an ARM Cortex-M0 core running from on-chip 64 kB Flash and 12 kB RAM, enabling field-upgradable firmware via SPI without external host intervention. Its RF transceiver operates in the 2.4 GHz ISM band with integrated PA, RSSI measurement, and configurable matching networks for standard (+5 dBm) or high-power (+8 dBm) modes.
Power architecture includes selectable LDO or DC-DC conversion, with SMPSFILT1/SMPSFILT2 pins controlling external filter components and NO_SMPS pin selecting strategy. Clocking supports 16/32 MHz crystal (±50 ppm), 32 kHz crystal (±50 ppm), or ring oscillators - enabling rapid wake-up (<67 µs) from sleep to TX/RX mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BLE Compliance | Bluetooth v4.2 single-mode, supporting master, slave, observer, broadcaster, and simultaneous multi-role operation |
| RF Output Power | +8 dBm max at antenna connector; programmable from –18 dBm to +8 dBm for adaptive power control |
| Link Budget | 96 dB typical - enables robust communication over >100 m in open space with standard antennas |
| Sleep Current | 1.7 µA with active BLE stack - sustains multi-year operation on CR2032 coin cell |
| TX Peak Current | 8.2 mA @ 0 dBm / 3.0 V - meets strict peak current limits for coin-cell applications |
| Supply Voltage | 1.7–3.6 V - compatible with single-cell Li-ion, Li-poly, or alkaline/coin-cell sources |
| Core Processor | ARM Cortex-M0 @ up to 32 MHz - executes BLE stack and ACI command handling independently of host MCU |
| Memory | 64 kB Flash (stack + firmware storage), 12 kB RAM (6 kB × 2 banks, retainable in sleep) |
Pinout & Package
BLUENRG-MSCSP uses a 34-ball WLCSP (2.66 × 2.56 mm, 0.4 mm pitch) with bottom-side solder balls. The package supports ultra-compact integration into space-constrained wearables and medical patches.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SPI_MOSI (E2) | Input | Host-to-device SPI data line; accepts commands and firmware updates at ≤8 MHz |
| SPI_CLK (E1) | Input | SPI clock input; synchronous timing reference for ACI command exchange |
| SPI_IRQ (D2) | Output | Active-low interrupt signaling pending events (e.g., connection complete, data ready) |
| SPI_CS (F2) | Input | Chip select enabling SPI transaction; internal pull-up ensures safe default state |
| SPI_MISO (F1) | Output | Device-to-host SPI data line; returns ACI responses and status reports |
| RESETN (E4) | Input | Active-low hardware reset; initiates full boot sequence and stack reinitialization |
| FXTAL1/FXTAL0 (A6/B6) | Input | 16/32 MHz crystal connections; ±50 ppm tolerance required for BLE timing compliance |
| SXTAL1/SXTAL0 (E6/E5) | Input | 32 kHz crystal inputs for low-power timer and sleep-mode clock source |
| RF0/RF1 (D6/C6) | I/O | Differential RF antenna interface; requires external balun/matching network per layout guidelines |
| VBAT1/VBAT3/VBAT2 (D5/C1/C6) | Power | Primary 1.7–3.6 V supply inputs; decoupled separately to minimize noise coupling into RF/digital domains |
| VDD1V8 (A3) | Power | 1.8 V digital core output; powers Cortex-M0 and BLE controller logic |
| VDD1V2 (F3) | Power | 1.2 V digital core output; supplies low-voltage peripherals and memory interfaces |
| SMPSFILT1/SMPSFILT2 (F6/F5) | Power | DC-DC converter filter node connections; require external LC filter for stable SMPS operation |
| NO_SMPS (B4) | Input | Logic-high selects LDO mode; logic-low enables DC-DC converter for higher efficiency at >5 mA load |
Key Features
| Feature | Design Value |
|---|---|
| Field-upgradable BLE stack | Stack stored in 64 kB on-chip Flash; updated via SPI without host MCU involvement or external debugger |
| Ultra-low-power sleep mode | 1.7 µA with full BLE stack active and RAM retention - enables multi-year battery life on CR2032 |
| Programmable RF output | Tunable TX power from –18 dBm to +8 dBm in 1 dB steps - optimizes range vs. battery lifetime per use case |
| Hardware AES-128 co-processor | Dedicated encryption engine accelerates pairing, privacy, and secure attribute exchange without CPU overhead |
| Dual-clock architecture | 32 kHz crystal + 16/32 MHz crystal enable <67 µs wake-up from sleep to active radio mode - minimizes duty-cycle latency |
| ACI-based SPI interface | Standard 5-wire SPI (CS/CLK/MOSI/MISO/IRQ) with defined command set - eliminates custom driver development |
Applications
| Smart Wearable Sensors | Fitness & Wellness Trackers |
|---|---|
|
Use Scenario: Compact wrist-worn heart rate monitor with continuous BLE advertising and periodic sensor reads. IC Role / Device Role / Timing Role: BLE network processor handling GAP/GATT server, connection management, and encrypted ATT writes - offloading host MCU. Use Value: 1.7 µA sleep current extends CR2032 battery life beyond 12 months; +8 dBm output ensures reliable connection through fabric and skin attenuation. |
Use Scenario: Wireless chest strap capturing ECG and motion data, streaming to smartphone during workout. IC Role / Device Role / Timing Role: Simultaneous BLE master (to sensor ICs) and slave (to phone); manages bonded connections and GATT notifications. Use Value: Dual-role support enables direct sensor fusion without intermediate MCU; 96 dB link budget maintains throughput at 2+ m distance indoors. |
| Medical Patch Monitors | Proximity Security Tags |
|
Use Scenario: Discreet adhesive patch monitoring temperature and respiration, transmitting alerts only on anomaly detection. IC Role / Device Role / Timing Role: Low-duty-cycle BLE peripheral using scheduled advertising intervals and RSSI-based proximity wake-up. Use Value: Sub-2 µA sleep + fast 67 µs RX activation reduces average current to <5 µA - enables 6+ month operation on microbattery. |
Use Scenario: Key fob or asset tag broadcasting encrypted presence beacon; triggers unlock when within 1 m of gateway. IC Role / Device Role / Timing Role: BLE broadcaster with privacy-enabled rotating address; uses AES co-processor for secure beacon signing. Use Value: Hardware AES-128 prevents replay attacks; programmable –18 dBm TX power minimizes detectability while maintaining 1 m range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLE network processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF52833 DK | QFN48, 64 MHz Cortex-M4F, 512 kB Flash, integrated antenna option; no native DC-DC, higher TX current (9.5 mA @ 0 dBm) | Targets higher-throughput applications (e.g., OTA DFU, concurrent BLE + Thread); less optimized for coin-cell peak current limits | Select when needing richer processing, larger memory, or multi-protocol support - not for minimal footprint or strict <10 mA peak current. |
| Texas Instruments CC2642R | QFN32, 48 MHz Cortex-M4F, 352 kB Flash, integrated RF balun; supports BLE 5.0 long-range; 6.9 mA @ 0 dBm | Better suited for industrial gateways requiring extended range or mesh topology; larger package (5 × 5 mm) than WLCSP34 | Prefer for BLE 5.0 features or longer-range links; avoid when board area <7 mm² or coin-cell peak current must stay <8.5 mA. |
Compared with nRF52833 DK and CC2642R, BLUENRG-MSCSP delivers the smallest footprint (2.66 × 2.56 mm), lowest verified sleep current with active stack (1.7 µA), and tightest peak current compliance (8.2 mA @ 0 dBm) - making it uniquely suited for miniature, battery-limited BLE endpoints.
Availability
BLUENRG-MSCSP is available at Aetrix Electronics and suitable for smart wearables, fitness trackers, medical patches, and proximity security tags requiring stable component supply across high-mix, low-volume production runs.
Supply support for BLUENRG-MSCSP 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, designing and manufacturing microcontrollers, analog ICs, MEMS, and wireless solutions for industrial, automotive, and consumer markets.
BLUENRG-MSCSP belongs to ST's BlueNRG family of ultra-low-power Bluetooth network processors, engineered specifically for space- and energy-constrained IoT edge nodes where host MCU offload, coin-cell compatibility, and regulatory-certified RF performance are mandatory.
FAQ
What is the minimum external component count required for BLUENRG-MSCSP to operate in BLE peripheral mode?
A functional BLE peripheral implementation requires: one 16 MHz crystal (NX3225SA-16.000MHz), two 32 kHz crystal load capacitors (12 pF), three decoupling capacitors (100 nF each on VBAT1/VBAT3/VDD1V8), one RF balun (e.g., Johanson 2450BM15A0002), and one 10 µH inductor if using DC-DC mode. No external flash or RAM is needed - all firmware runs from on-chip 64 kB Flash.
Does BLUENRG-MSCSP support Bluetooth 5.0 features such as long range or 2 Mbps PHY?
No. BLUENRG-MSCSP is compliant only with Bluetooth Core Specification v4.2. It does not implement the Bluetooth 5.0 2 Mbps PHY, Coded PHY (S=2/S=8), or advertising extensions. Its RF transceiver and embedded stack are fixed at v4.2 functionality - confirmed in DS10691 Rev 9 section 2 and UM1865 ACI specification.
Can the internal DC-DC converter be used with a 1.8 V supply rail?
Yes. The DC-DC converter operates across the full 1.7–3.6 V input range. When VBAT is 1.8 V, SMPS output adjusts to ~1.2 V for VDD1V2 and ~1.8 V for VDD1V8 via internal regulation. However, efficiency gain versus LDO is reduced below 2.2 V; ST recommends LDO mode for VBAT < 2.0 V to ensure stable startup and transient response.
Is the WLCSP34 package RoHS and REACH compliant, and what is its moisture sensitivity level (MSL)?
Yes. BLUENRG-MSCSP WLCSP34 is RoHS Directive 2011/65/EU and REACH SVHC compliant per ST's official product declaration (Doc ID032125). Its MSL rating is Level 3 (floor life 168 hours at ≤30 °C / 60% RH), requiring bake-out before reflow if exposed beyond that window - specified in ST packaging documentation PN123456 rev B.
BLUENRG-MSCSP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- BlueNRG
- Package/Case:
- 34-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v4.1
- Modulation:
- GFSK
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 1Mbps
- Power - Output:
- 8dBm
- Sensitivity:
- -88dBm
- Memory Size:
- 64kB Flash, 12kB RAM
- Serial Interfaces:
- SPI
- GPIO:
- -
- Voltage - Supply:
- 1.7V ~ 3.6V
- Current - Receiving:
- 7.3mA ~ 14.5mA
- Current - Transmitting:
- 5.8mA ~ 28.8mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 34-WLCSP (2.66x2.56)
BLUENRG-MSCSP FAQ
1.How can I place an order for BLUENRG-MSCSP through Aetrix?
Please submit a Request for Quotation (RFQ) for BLUENRG-MSCSP 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-MSCSP reliable?
The price and inventory of BLUENRG-MSCSP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BLUENRG-MSCSP is usually 5 days.
3.What payment methods are accepted for BLUENRG-MSCSP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BLUENRG-MSCSP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BLUENRG-MSCSP?
BLUENRG-MSCSP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BLUENRG-MSCSP 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-MSCSP?
For technical support, including BLUENRG-MSCSP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BLUENRG-MSCSP requirements.
6.How does Aetrix verify that BLUENRG-MSCSP is sourced from the original manufacturer or authorized distributors?
All BLUENRG-MSCSP 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-MSCSP meets industry standards.
7.What is the process for return or replacement of BLUENRG-MSCSP?
All BLUENRG-MSCSP units undergo pre-shipment inspection (PSI). If there is an issue with BLUENRG-MSCSP, 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-MSCSP part is unused and in its original packaging.
Return procedure for BLUENRG-MSCSP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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