My Inquiry
My Account
STMicroelectronics STLBC01QTR
- Part No.:
- STLBC01QTR
- Manufacturer:
- STMicroelectronics
- Category:
- RF Misc ICs and Modules
- Package:
- 24-VQFN Exposed Pad
- Datasheet:
-
STLBC01QTR.pdf
- Description:
- IC LOW ENERGY CTLR 24VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,854
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STLBC01QTR from STMicroelectronics is a Bluetooth® Low Energy (BLE) 4.0-compliant controller IC integrating physical layer, link layer with embedded AES security engine, UART/SPI HCI transport, programmable RF output power (–18 to +3 dBm), digital RSSI, battery level detection, and integrated linear regulator. It operates from 1.9–3.6 V, draws ≤13 mA peak current, and targets coin-cell-powered wearable and sensing applications.
For engineers reviewing the STLBC01QTR datasheet, STLBC01QTR pinout, STLBC01QTR application, or STLBC01QTR equivalent, key selection criteria include BLE v4.0 controller functionality, ultra-low peak/average current consumption, dual HCI interface support (UART/SPI), integrated SVLD and RF power control, and QFN24 5×5 mm RoHS package compatibility with compact antenna matching.
Technical Context
The STLBC01QTR implements a fully autonomous BLE link layer with hardware-accelerated AES-128 encryption and random number generation, enabling secure connection establishment without host MCU intervention. Its RF front-end supports 2.4 GHz ISM band operation at 1 Mbps air data rate with 200 Ω differential antenna port impedance and ±20 ppm crystal tolerance for 26 MHz XTAL.
Power management includes three low-power modes: Standby (1.5 μA), Xtreme (200 nA), and OFF (50 nA), with sub-100 μs wake-up latency from sleep via IRQ or WU/CSN. The SPI transport layer enables proprietary low-power mode entry, while UART supports standard baud rates up to 1 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BLE Compliance | Bluetooth specification v4.0 compliant master/slave controller - full protocol stack offloaded to external host MCU. |
| Supply Voltage | 1.9 V to 3.6 V - compatible with single coin cell (e.g., CR2032) without external DC/DC conversion. |
| Peak Current | ≤13 mA - meets strict coin-cell burst-current limits during TX/RX transitions. |
| RF Output Power | Programmable from –18 dBm to +3 dBm - enables range/power trade-off tuning per application deployment. |
| Digital RSSI | On-chip received signal strength indication - eliminates need for external RSSI ADC or analog circuitry. |
| Battery Detection | Integrated SVLD (supply voltage level detector) - provides host MCU with calibrated battery voltage status via HCI command. |
| Operating Temp | –40 °C to +85 °C - qualified for industrial and consumer wearable environments. |
| Regulatory Cert | FCC Part 15, ETSI EN 300 328/440, ARIB STD-T66 - pre-certified RF compliance reduces end-product certification burden. |
Pinout & Package
STLBC01QTR is housed in a RoHS-compliant VFQFPN 24-lead (5 × 5 × 0.9 mm) package with exposed thermal pad. Pin numbering follows standard QFN top-view layout (pin 1 = UART_TX/SPI_MISO, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (UART_TX / SPI_MISO) | Digital output | Transmits UART TX data or SPI MISO data - bidirectional interface selection controlled by SEL pin. |
| 10 (WU/CSN) | Digital input | Wakes device from sleep/OFF mode (UART) or acts as SPI chip select - critical for low-power system wake-up control. |
| 11 (SEL) | Digital input | Selects UART (SEL = 0) or SPI (SEL = 1) transport layer - determines pin function mapping and power mode behavior. |
| 15–16 (ANTP / ANTN) | RF differential port | 200 Ω differential RF interface - requires external balun/matching network (e.g., L1–L4, C6–C13) for 50 Ω antenna coupling. |
| 19 (BIAS_R) | Analog input | Connects external bias resistor to set PA operating point - enables fine-tuning of RF output linearity and efficiency. |
| 23 (RST) | Digital input | Active-low asynchronous reset - initiates full hardware reset sequence including PLL and RF calibration reinitialization. |
| 24 (IRQ) | Digital output | Open-drain interrupt request - signals host MCU on HCI event completion, RX packet arrival, or power mode transition. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Security Engine | AES-128 encryption + RNG hardware acceleration - enables secure pairing and encrypted link layer without host CPU overhead. |
| SPI Proprietary Low-Power Mode | Enables <200 nA Xtreme mode retention - extends coin-cell life beyond 1 year in periodic-sensing applications (e.g., fitness trackers). |
| Integrated Battery Level Detector (SVLD) | Calibrated 0.9–3.6 V measurement with 10-bit resolution - eliminates external voltage divider and ADC, reducing BOM and layout area. |
| Minimal External Components | Only 26 discrete parts required (per Figure 4 schematic) - includes no external RF filters, simplifying PCB design and cost. |
| 26 MHz Crystal Support | Wide-spread, low-cost NX3225SA-type crystal - avoids premium TCXO, lowers bill-of-materials while meeting BLE timing jitter requirements. |
Applications
| Fitness Tracker | Smart Watch |
|---|---|
|
Use Scenario: Continuous heart-rate and motion sensing with periodic BLE advertising and connection to smartphone. IC Role / Device Role / Timing Role: BLE controller managing radio timing, link-layer state machine, and encrypted data exchange independent of host MCU. Use Value: 13 mA peak current and Xtreme mode enable >12-month CR2032 battery life with 1-second advertising interval and 5-minute connected sensing bursts. |
Use Scenario: Always-on timekeeping with on-demand notifications, sensor fusion, and OTA firmware updates. IC Role / Device Role / Timing Role: Dedicated BLE controller offloading radio protocol handling from main application processor to reduce system power and latency. Use Value: Dual HCI interface (SPI for low-power background sync, UART for debug/OTA) enables flexible architecture without compromising real-time responsiveness. |
| Wireless Medical Sensor | Industrial Proximity Tag |
|
Use Scenario: Disposable glucose monitor transmitting single-use calibration and glucose readings to clinic gateway. IC Role / Device Role / Timing Role: Secure BLE endpoint with SVLD monitoring battery depletion to prevent data loss before disposal. Use Value: Integrated AES engine ensures HIPAA-compliant data encryption at link layer; SVLD alerts host before voltage drops below 2.0 V, preserving final transmission integrity. |
Use Scenario: Battery-powered asset tag reporting location and tamper status in warehouse logistics systems. IC Role / Device Role / Timing Role: Ultra-low-power BLE beacon controller with programmable –10 dBm output to limit range to 3–5 meters and avoid interference. Use Value: Programmable RF power (–18 to +3 dBm) allows precise control of broadcast radius, reducing false triggers and extending battery life in dense RFID/BLE environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLE controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nordic nRF51822-QFAB | ARM Cortex-M0 core onboard; full BLE stack runs internally - no external MCU required. | Higher BOM cost and code size; suited for standalone sensor nodes without host processor. | Select when full embedded BLE stack execution is needed; STLBC01QTR preferred when host MCU already handles protocol stack. |
| Texas Instruments CC2541F256RHAT | Integrated 8051 MCU; supports BLE v4.0 but lacks hardware AES engine - software encryption increases CPU load and latency. | Requires larger firmware footprint and higher average current in secure connections. | Choose only if legacy 8051 toolchain and pin compatibility with existing CC254x designs are mandatory. |
Compared with nRF51822-QFAB and CC2541F256RHAT, STLBC01QTR delivers lowest peak current (13 mA vs. ≥15 mA), hardware AES acceleration, and dedicated SVLD - making it optimal for host-processor-based wearables where power, security, and battery telemetry are prioritized over integrated MCU flexibility.
Availability
STLBC01QTR is available at Aetrix Electronics and suitable for fitness trackers, smart watches, wireless medical sensors, and industrial proximity tags requiring stable component supply, long-term lifecycle support, and RoHS-compliant QFN packaging.
Supply support for STLBC01QTR 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 specializing in microcontrollers, power management, sensors, and connectivity solutions for industrial, automotive, and consumer markets.
STLBC01QTR belongs to ST's ultra-low-power BLE controller product line, designed specifically for battery-constrained IoT endpoints where minimal peak current, integrated security, and host-processor offload are critical.
FAQ
Does STLBC01QTR require an external crystal oscillator?
Yes - STLBC01QTR requires a 26 MHz fundamental-mode quartz crystal (e.g., NX3225SA) connected between XTAL1 and XTAL2 pins. The device does not support external clock input or MEMS oscillators; crystal load capacitance must be 12 pF per terminal as specified in Table 2.
Can STLBC01QTR operate without an external host MCU?
No - STLBC01QTR is a pure BLE controller with no embedded application processor. It relies entirely on an external host MCU (e.g., STM32L series) to run the BLE protocol stack, profiles, and application logic via UART or SPI HCI transport.
What is the purpose of the BIAS_R pin?
BIAS_R connects an external resistor (typically 27 kΩ) to set the bias current of the internal power amplifier. This adjustment optimizes RF output power accuracy and spectral mask compliance across temperature and voltage variations, as defined in Section 8.2 of the datasheet.
Is STLBC01QTR pin-compatible with other ST BLE controllers?
No - STLBC01QTR uses a unique 24-pin QFN layout optimized for its RF and power architecture. It is not pin-compatible with ST's later STLCS01 or SPBTLE-RF modules, which integrate antenna and different power management schemes.
STLBC01QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 24-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Controller
- Frequency:
- 2.4GHz
- RF Type:
- Bluetooth
- Secondary Attributes:
- SPI Interface
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
STLBC01QTR FAQ
1.How can I place an order for STLBC01QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STLBC01QTR 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 STLBC01QTR reliable?
The price and inventory of STLBC01QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STLBC01QTR is usually 5 days.
3.What payment methods are accepted for STLBC01QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STLBC01QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STLBC01QTR?
STLBC01QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STLBC01QTR 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 STLBC01QTR?
For technical support, including STLBC01QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STLBC01QTR requirements.
6.How does Aetrix verify that STLBC01QTR is sourced from the original manufacturer or authorized distributors?
All STLBC01QTR 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 STLBC01QTR meets industry standards.
7.What is the process for return or replacement of STLBC01QTR?
All STLBC01QTR units undergo pre-shipment inspection (PSI). If there is an issue with STLBC01QTR, 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 STLBC01QTR part is unused and in its original packaging.
Return procedure for STLBC01QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STLBC01QTR Tags
-
PE64102B-Z
pSemi
-
PE64906B-Z
pSemi
-
C8A50Z4B
TTM Technologies, Inc.
-
C16A50Z4
TTM Technologies, Inc.
-
ST4SI2M0020TPIFW
STMicroelectronics
-
SKY16603-632LF
Skyworks Solutions Inc.
-
X3C14P1-03S
TTM Technologies, Inc.
-
CZ12010T0050GTR
KYOCERA AVX
-
C200N50Z4
TTM Technologies, Inc.
-
C150N50Z4
TTM Technologies, Inc.
-
TL852CDR
Texas Instruments
-
AEQ3055-10
Knowles Dielectric Labs
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
