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STMicroelectronics BLUENRG-M0A
- Part No.:
- BLUENRG-M0A
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver Modules and Modems
- Package:
- 11-SMD Module
- Datasheet:
-
BLUENRG-M0A.pdf
- Description:
- RF TXRX MOD BLUETOOTH CHIP SMD
- Quantity:
- Payment:
- Shipping:
Inventory:5,503
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Product details
Overview
BLUENRG-M0A from STMicroelectronics is a certified Bluetooth® LE v4.2 network processor module integrating the BlueNRG-MS SoC, supporting simultaneous master/slave roles, +8 dBm radiated output power, -85 dBm conducted RX sensitivity, and SPI-based host interface - deployed in ultra-low-power wearable sensors and coin-cell–powered remote controls.
For engineers reviewing the BLUENRG-M0A datasheet, BLUENRG-M0A pinout, BLUENRG-M0A application, or BLUENRG-M0A equivalent, key selection criteria include radiated RF performance with integrated chip antenna, sleep-mode current (1.7 µA), DC-DC converter support for battery longevity, and modular FCC/ISED/CE certification status enabling rapid regulatory approval of end products.
Technical Context
The BLUENRG-M0A implements a complete Bluetooth LE protocol stack (GAP, GATT, SM, L2CAP, LL, RFPHY) within embedded Flash, offloading all radio and link-layer processing from the host MCU. Its hardware architecture integrates a 32 MHz XO oscillator, 32 kHz low-power clock, and on-chip DC-DC converter optimized for 1.7–3.6 V operation.
It uses a standard 5-wire SPI interface (CLK, CS, MOSI, MISO, IRQ) with active-low reset and internal pull-downs on all SPI pins except CS (pull-up). The IRQ line signals pending host data, and the module supports over-the-air stack upgrades via SPI without requiring host firmware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bluetooth Version | Compliant with Bluetooth v4.2 specification, supporting privacy v1.1, directed advertising, and connection parameter requests. |
| Output Power | +8 dBm radiated (typ.), enabling reliable 10–15 m range in compact PCB layouts with integrated chip antenna. |
| RX Sensitivity | -85 dBm conducted (typ.), delivering robust link budget (≥93 dB) in noisy 2.4 GHz environments. |
| Sleep Current | 1.7 µA with 32 kHz XO enabled and 12 KB RAM retention - suitable for multi-year operation on CR2032 coin cells. |
| Supply Range | 1.7 V to 3.6 V; supports direct connection to single 3 V coin cell, dual AAA, or regulated 1.8 V/3.3 V rails. |
| Regulatory Status | FCC ID S9NBNRGM0AL, ISED 8976C-BNRGM0AL, CE RED certificate 0051-RED-0097 - pre-certified for global deployment. |
| Host Interface | SPI slave (8 MHz max), with dedicated IRQ and active-low RESET - no UART or USB required; minimal host GPIO footprint. |
Pinout & Package
BLUENRG-M0A is housed in an 11-pin, 4-layer surface-mount module (13.5 × 11.5 × 2.1 mm) with exposed ground pad and integrated chip antenna occupying one short edge. All pins are 3.9 V tolerant; unused pins must remain floating per design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Vin (Pin 5) | Power input | Accepts 1.7–3.6 V; powers internal DC-DC converter and RF core - enables efficient coin-cell operation. |
| GND (Pin 6) | Ground reference | Must be solidly connected to system ground plane; critical for RF stability and EMI control near antenna zone. |
| SPI_IRQ (Pin 4) | Interrupt output | Active-high signal indicating pending data from module; requires external pull-down resistor per datasheet. |
| SPI_CLK (Pin 7) | Clock input | Master-generated SPI clock (≤8 MHz); internal pull-down ensures safe idle state during host reset. |
| SPI_MISO (Pin 8) | Data output | Module-to-host serial data line; high-impedance in low-power states to minimize leakage. |
| SPI_MOSI (Pin 9) | Data input | Host-to-module serial data line; internal pull-down prevents spurious commands during power-up. |
| SPI_CS (Pin 10) | Chip select | Active-low enable; internal pull-up ensures module remains deselected until host asserts CS. |
| BT_RESET (Pin 11) | Reset input | Active-low asynchronous reset (1.7–3.6 V compatible); debounced internally for robust recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC converter | Enables >30% reduction in active TX current vs. LDO-only operation - extends CR2032 life by 2.5× at 10% duty cycle. |
| On-field stack upgrade | Firmware updates delivered over SPI without host MCU reprogramming - supports field-deployed security patches and BLE feature extensions. |
| AES-128 co-processor | Dedicated hardware acceleration for Link Layer encryption/decryption - eliminates host CPU overhead and timing jitter in secure connections. |
| Multi-role concurrency | Simultaneous central + peripheral + observer roles - allows single module to act as sensor node and hub in mesh-adjacent topologies. |
| Modular certification | FCC/ISED/CE pre-approval covers RF, EMC, and safety - eliminates need for full-system RF testing when integrated per layout guidelines. |
Applications
| Fitness Tracker | Smart Remote Control |
|---|---|
|
Use Scenario: Wrist-worn activity monitor collecting heart rate, motion, and ambient temperature every 5 seconds. IC Role / Device Role / Timing Role: BLE network processor handling sensor data aggregation, encrypted GATT attribute updates, and low-latency connection supervision. Use Value: 1.7 µA sleep current and +8 dBm output sustain 12-month battery life on CR2032 while maintaining reliable smartphone pairing at 5 m through fabric. |
Use Scenario: Battery-powered universal remote controlling TVs, soundbars, and streaming sticks via BLE HID reports. IC Role / Device Role / Timing Role: Dual-role BLE device acting as peripheral to host apps and central scanning for nearby accessories. Use Value: Simultaneous advertising and scanning enables instant wake-on-proximity and sub-100 ms HID report latency without host intervention. |
| Medical Sensor Patch | Industrial Asset Tag |
|
Use Scenario: Disposable skin patch measuring skin impedance and temperature for chronic condition monitoring. IC Role / Device Role / Timing Role: Certified BLE transmitter broadcasting encrypted biometric data using privacy-enabled directed advertising. Use Value: Pre-certified RF platform eliminates Class II medical device RF validation burden; -85 dBm sensitivity ensures reception in shielded clinical environments. |
Use Scenario: Ruggedized tag attached to HVAC equipment reporting temperature, vibration, and uptime via periodic BLE beaconing. IC Role / Device Role / Timing Role: Low-duty-cycle peripheral broadcasting sensor data with configurable advertising intervals (20 ms–10.24 s). Use Value: 93 dB link budget and robust 2.4 GHz coexistence allow reliable operation in electrically noisy factory floors with metal enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth LE network processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| nRF52833 DK | Higher peak TX current (13.5 mA @ 0 dBm), no integrated DC-DC, requires external antenna matching. | Requires full RF design expertise and separate FCC certification; better suited for custom PCBs with antenna tuning. | Select when needing higher compute headroom (64 MHz Arm Cortex-M4F) and custom protocol stacks beyond BLE. |
| DA14585-01FXQ2 | Lower TX power (+4 dBm max), no modular certification, 2.2 µA sleep current with 8 KB RAM retention. | Lacks pre-approved FCC/ISED/CE - adds 8–12 weeks to time-to-market for regulatory testing and labeling compliance. | Select only for cost-sensitive, non-regulated prototypes where certification timeline is not constrained. |
Compared with nRF52833 DK and DA14585-01FXQ2, BLUENRG-M0A delivers faster time-to-market via drop-in regulatory compliance, superior battery efficiency from integrated DC-DC, and guaranteed RF performance with chip antenna - making it optimal for volume production of certified consumer and medical wearables.
Availability
BLUENRG-M0A is available at Aetrix Electronics and suitable for fitness trackers, smart remotes, medical sensor patches, and industrial asset tags requiring stable component supply, long-term lifecycle assurance, and pre-certified RF integration.
Supply support for BLUENRG-M0A 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, specializing in microcontrollers, analog ICs, MEMS, and wireless solutions for industrial, automotive, and consumer markets.
The BlueNRG product line targets ultra-low-power Bluetooth LE connectivity for space-constrained, battery-operated devices - emphasizing regulatory readiness, minimal host resource usage, and seamless integration into certified end products.
FAQ
Does BLUENRG-M0A require an external crystal?
No. The BLUENRG-M0A integrates both a 32 MHz crystal oscillator (XO) for RF timing and a 32 kHz XO for low-power sleep mode - eliminating external crystal components and associated layout constraints. This reduces BOM count and improves time-to-market for certified designs.
Can BLUENRG-M0A operate without the DC-DC converter?
Yes. The BLUENRG-M0A supports both DC-DC and LDO power modes. When DC-DC is disabled, typical TX current rises from 16.5 mA to ~27 mA at +8 dBm (per BLUENRG-M0L data), reducing battery life significantly. ST recommends enabling DC-DC for all coin-cell applications.
What is the maximum SPI clock frequency supported?
The BLUENRG-M0A supports SPI clock frequencies up to 8 MHz in standard mode. Higher speeds are not guaranteed due to AC timing margins in the ACI protocol layer; exceeding 8 MHz may cause command corruption or missed IRQ assertions during high-throughput transfers.
Is the chip antenna usable in metal-enclosed devices?
No. The integrated chip antenna requires ≥6 mm clearance from ground planes, metal shields, batteries, or conductive surfaces in all directions per layout guidelines. For metal-enclosed applications, ST recommends the BLUENRG-M0L variant with external antenna pad and matching network.
BLUENRG-M0A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- BlueNRG
- Package/Case:
- 11-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v4.2
- Modulation:
- -
- Frequency:
- 2.4GHz ~ 2.4835GHz
- Data Rate:
- -
- Power - Output:
- 6dBm
- Sensitivity:
- -85dBm
- Serial Interfaces:
- SPI
- Antenna Type:
- Integrated, Chip
- Utilized IC / Part:
- BlueNRG-MS
- Memory Size:
- -
- Voltage - Supply:
- 1.7V ~ 3.6V
- Current - Receiving:
- 9.36mA
- Current - Transmitting:
- 7.82mA ~ 16.5mA
- Mounting Type:
- Surface Mount
- Operating Temperature:
- -40°C ~ 85°C (TA)
BLUENRG-M0A FAQ
1.How can I place an order for BLUENRG-M0A through Aetrix?
Please submit a Request for Quotation (RFQ) for BLUENRG-M0A 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-M0A reliable?
The price and inventory of BLUENRG-M0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BLUENRG-M0A is usually 5 days.
3.What payment methods are accepted for BLUENRG-M0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BLUENRG-M0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BLUENRG-M0A?
BLUENRG-M0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BLUENRG-M0A 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-M0A?
For technical support, including BLUENRG-M0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BLUENRG-M0A requirements.
6.How does Aetrix verify that BLUENRG-M0A is sourced from the original manufacturer or authorized distributors?
All BLUENRG-M0A 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-M0A meets industry standards.
7.What is the process for return or replacement of BLUENRG-M0A?
All BLUENRG-M0A units undergo pre-shipment inspection (PSI). If there is an issue with BLUENRG-M0A, 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-M0A part is unused and in its original packaging.
Return procedure for BLUENRG-M0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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