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STMicroelectronics BLUENRG-132
- Part No.:
- BLUENRG-132
- Manufacturer:
- STMicroelectronics
- Category:
- RF Transceiver ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
BLUENRG-132.pdf
- Description:
- IC RF TXRX+MCU BLE 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
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Product details
Overview
BLUENRG-132 from STMicroelectronics is a Bluetooth® LE 5.2 single-mode system-on-chip integrating an Arm® Cortex®-M0 core, 160 KB flash, 24 KB RAM with retention, and a +8 dBm RF output. It supports secure connections, link-layer privacy, and operates from 1.7–3.6 V across –40°C to +105°C - enabling long-life battery-powered wearables and industrial sensors.
For engineers reviewing the BLUENRG-132 datasheet, BLUENRG-132 pinout, BLUENRG-132 application, or BLUENRG-132 equivalent, key selection criteria include ultra-low sleep current (1 µA with active BLE stack), integrated DC-DC converter, dual crystal oscillator support (16/32 MHz + 32 kHz), PDM stream processor for voice, and regulatory compliance (FCC/ETSI/ARIB).
Technical Context
The BLUENRG-132 implements a full Bluetooth® LE 5.2 protocol stack in firmware, supporting GAP central/peripheral/observer/broadcaster roles, ATT/GATT client/server, SM privacy/authentication, and AES-128 encryption. Its dual-clock architecture uses a 16/32 MHz external XO for RF timing and BLE link layer accuracy (±50 ppm), while the 32 kHz ring or crystal oscillator sustains RTC and low-power wake-up.
Power management integrates both LDO and high-efficiency DC-DC converter, enabling dynamic switching between preactive, active, standby, and sleep states. Wake-up sources include five GPIOs (IO9–IO13) with configurable level sensitivity and 200 µs wake latency at 3.0 V - optimized for intermittent sensing and advertisement intervals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex®-M0, 32-bit RISC, runs user application + BLE stack in single-chip mode |
| Flash / RAM | 160 KB flash (32-bit access); 24 KB SRAM with two 12 KB retention banks for low-power state preservation |
| RF Performance | +8 dBm output power; 96 dB link budget; RSSI accuracy ±3 dB for adaptive power control |
| Power Consumption | 1 µA in sleep mode with active BLE stack; 15.34 µA avg. advertisement current (1 s interval) |
| Peripherals | 1 UART, 1 SPI, 2 I²C, 14–15 GPIOs, 2 multifunction timers, 10-bit ADC, PDM stream processor, RTC, WDG |
| Regulatory Compliance | ETSI EN 300 328/300 440, FCC CFR47 Part 15, ARIB STD-T66 certified |
| Oscillators | Supports 16 MHz or 32 MHz external crystal (±50 ppm); 32 kHz crystal or ring oscillator for low-power timing |
Pinout & Package
BLUENRG-132 is available in VFQFPN32 (5 × 5 mm, 0.5 mm pitch) and WLCSP34 (2.57 × 2.57 mm, 0.4 mm pitch) packages. Pin functions differ between packages; VFQFPN32 provides full peripheral access including I²C1, while WLCSP34 omits I²C1 and IO13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO | Digital I/O supply | 1.7–3.6 V input; powers GPIOs, UART, SPI, I²C, timers; decoupling required |
| VDD_DIG | Digital core supply | Supplies Cortex-M0, flash controller, DMA, APB/AHB bus matrix; regulated by internal LDO/DC-DC |
| VBAT | Battery input | Main power source; feeds internal regulators; supports direct CR2032 connection |
| RESETN | Active-low reset | Powers down chip when held low; must be held low during VBAT ramp-up per POR sequence |
| SXTAL0 / SXTAL1 | 32 kHz crystal terminals | Connects external 32.768 kHz crystal for RTC and low-power timing; optional ring oscillator fallback |
| HSE_XO / HSE_XI | High-speed crystal terminals | Accepts 16 MHz or 32 MHz crystal (±50 ppm); mandatory for BLE RF operation and link-layer timing |
| ANT | RF antenna interface | 50 Ω matched RF output; requires external balun/filter (e.g., ST's BALF-NRG-02D3) |
| IO9–IO13 | Wake-up GPIOs | Configurable as low-/high-level wake sources; IO9–IO11 have internal pull-ups; IO12/IO13 require external bias |
Key Features
| Feature | Design Value |
|---|---|
| BLE 5.2 Stack Integration | Firmware-based stack supports all GAP/ATT/SM/L2CAP/Link Layer functions - no external host MCU needed in single-chip mode |
| Ultra-Low Sleep Current | 1 µA with BLE stack active enables >3-year CR2032 battery life in connected mode (1 s interval) |
| Integrated Power Conversion | On-chip DC-DC converter reduces system-level power supply complexity and improves efficiency vs. LDO-only designs |
| PDM Audio Processing | Dedicated hardware PDM stream processor offloads voice preprocessing from Cortex-M0, reducing CPU load and power |
| Secure Sensor Interface | 10-bit ADC with integrated battery voltage and die temperature sensors - enables autonomous health monitoring without external components |
Applications
| Smart Wearables | Fitness Trackers |
|---|---|
Use Scenario: Compact wrist-worn devices requiring multi-day battery life, motion sensing, and BLE notifications. IC Role / Device Role / Timing Role: Single-chip BLE SoC executing sensor fusion algorithms, managing BLE advertising/connection, and driving low-power display updates. Use Value: 1 µA sleep current and integrated DC-DC enable >24 months CR2032 operation in watch mode; PDM processor supports voice command wake-up. | Use Scenario: Chest strap or armband monitors heart rate, acceleration, and respiration during exercise. IC Role / Device Role / Timing Role: Real-time sensor hub aggregating analog (ECG) and digital (accelerometer) data, performing on-device filtering, and streaming via BLE GATT. Use Value: 10-bit ADC with battery/temperature sensing eliminates external monitoring ICs; 96 dB link budget ensures reliable connection in RF-noisy gym environments. |
| Industrial Proximity Sensors | Medical Remote Monitors |
Use Scenario: Battery-powered door/window contact sensors in smart building automation systems operating at –40°C to +105°C. IC Role / Device Role / Timing Role: Low-power BLE beacon detecting magnetic closure events and transmitting encrypted status every 5 seconds. Use Value: Wide temperature range and 15.34 µA avg. advertisement current deliver >1 year operation on coin cell; IO9–IO13 GPIOs provide direct reed-switch interfacing. | Use Scenario: Disposable glucose or blood pressure monitors transmitting clinical-grade readings to smartphones or gateways. IC Role / Device Role / Timing Role: Secure BLE endpoint performing authenticated pairing, encrypted data transmission, and battery health reporting per ISO 13485 requirements. Use Value: BLE 5.2 secure connections and link-layer privacy meet HIPAA-compliant data handling; integrated RNG and PKA accelerate cryptographic operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth® LE SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| nRF52833 | Arm Cortex-M4F core, 512 KB flash, 128 KB RAM; higher compute headroom but 2.6 µA sleep current (vs. BLUENRG-132's 1 µA) | Better suited for complex edge AI inference or concurrent multi-protocol (Bluetooth + Thread/Zigbee) use cases | Select when application requires floating-point math or larger firmware footprint; avoid if coin-cell lifetime is primary constraint |
| CC2642R | Arm Cortex-M4F + dedicated radio controller; 352 KB flash, 80 KB RAM; 0.9 µA deep-sleep but requires external DC-DC for lowest power | Optimized for TI's SimpleLink SDK ecosystem and long-range BLE (coded PHY) extensions | Prefer for legacy TI-based designs or where Bluetooth 5.0 coded PHY (125/500 kbps) is mandatory; BLUENRG-132 offers simpler BOM with integrated DC-DC |
Compared with nRF52833 and CC2642R, BLUENRG-132 delivers the lowest verified sleep current with fully integrated power regulation and BLE 5.2 security features - making it optimal for cost-sensitive, ultra-long-life sensor nodes where M4F compute overhead is unnecessary.
Availability
BLUENRG-132 is available at Aetrix Electronics and suitable for smart wearables, industrial proximity sensors, and medical remote monitors requiring stable component supply, extended temperature operation, and regulatory-certified BLE 5.2 connectivity.
Supply support for BLUENRG-132 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, power management ICs, sensors, and wireless solutions for industrial, automotive, and consumer markets.
The BlueNRG product line targets ultra-low-power Bluetooth® LE applications - specifically engineered to minimize battery drain in coin-cell-powered IoT endpoints while maintaining full BLE 5.x protocol compliance and integrated security primitives.
FAQ
Does BLUENRG-132 support over-the-air (OTA) firmware updates?
Yes, BLUENRG-132 supports OTA firmware updates via its preprogrammed UART bootloader and BLE stack. The 160 KB flash memory is partitioned to accommodate dual-bank operation, allowing safe firmware swap without bricking the device. Application code must implement GATT-based DFU service using ST's BlueNRG SDK v3.x or later, with CRC validation and rollback capability enabled.
What is the maximum achievable BLE connection interval with BLUENRG-132?
The BLUENRG-132 supports BLE connection intervals from 7.5 ms to 4 s, compliant with Bluetooth® Core Specification v5.2. At 1 s interval, average connection current is 7.059 µA with a 230 mAh CR2032 battery - enabling over 3.8 years of operation. Intervals below 100 ms increase current draw significantly due to radio wake-up overhead and are typically used only in high-throughput sensor streaming applications.
Can BLUENRG-132 operate without an external crystal?
No - BLUENRG-132 requires a 16 MHz or 32 MHz external crystal (±50 ppm tolerance) for BLE RF operation and link-layer timing accuracy. The internal 16 MHz RO oscillator is only used during startup and cannot sustain BLE communication. However, the 32 kHz timing can use either an external crystal or the internal ring oscillator, enabling RTC and low-power wake-up without additional components.
Which development tools are officially supported for BLUENRG-132 firmware development?
ST provides full toolchain support via STM32CubeIDE with BlueNRG-132 device pack, STSW-BLESDK software suite (including BLE stack libraries, GATT profile examples, and AT command firmware), and the STEVAL-IDB008V1 evaluation board. Debugging uses SWD interface with ST-LINK/V2-1; no JTAG support. Keil MDK and IAR Embedded Workbench are also qualified through ST's partner program with vendor-specific HAL integration.
BLUENRG-132 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- BlueNRG
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v5.2
- Modulation:
- -
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 1Mbps
- Power - Output:
- 8dBm
- Sensitivity:
- -88dBm
- Memory Size:
- 160kB Flash, 24kB RAM
- Serial Interfaces:
- ADC, GPIO, I2C, SPI, UART
- GPIO:
- 15
- Voltage - Supply:
- 1.7V ~ 3.6V
- Current - Receiving:
- 7.7mA
- Current - Transmitting:
- 15.1mA
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-QFN (5x5)
BLUENRG-132 FAQ
1.How can I place an order for BLUENRG-132 through Aetrix?
Please submit a Request for Quotation (RFQ) for BLUENRG-132 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-132 reliable?
The price and inventory of BLUENRG-132 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BLUENRG-132 is usually 5 days.
3.What payment methods are accepted for BLUENRG-132?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BLUENRG-132 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BLUENRG-132?
BLUENRG-132 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BLUENRG-132 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-132?
For technical support, including BLUENRG-132 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BLUENRG-132 requirements.
6.How does Aetrix verify that BLUENRG-132 is sourced from the original manufacturer or authorized distributors?
All BLUENRG-132 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-132 meets industry standards.
7.What is the process for return or replacement of BLUENRG-132?
All BLUENRG-132 units undergo pre-shipment inspection (PSI). If there is an issue with BLUENRG-132, 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-132 part is unused and in its original packaging.
Return procedure for BLUENRG-132:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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