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STMicroelectronics STM32L083RBH6
- Part No.:
- STM32L083RBH6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-TFBGA
- Datasheet:
-
STM32L083RBH6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,832
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Product details
Overview
STM32L083RBH6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 192 KB Flash, 20 KB SRAM, and 6 KB EEPROM, featuring integrated USB 2.0 (crystal-less), LCD controller (up to 4×52 segments), dual 12-bit DACs, 12-bit ADC (1.14 Msps, 16 channels), and AES-128 hardware encryption. It operates from 1.65–3.6 V across –40 to +125 °C and targets battery-powered industrial sensors and portable medical devices requiring long runtime and secure firmware updates.
For engineers reviewing the STM32L083RBH6 datasheet, STM32L083RBH6 pinout, STM32L083RBH6 application, or STM32L083RBH6 equivalent, key selection criteria include its 0.86 µA Stop mode + RTC + 20-KB RAM retention, 41 µA 12-bit ADC conversion at 10 ksps, crystal-less USB capability, and 78 I/Os with 5V tolerance - critical for space-constrained, energy-sensitive embedded designs.
Technical Context
The STM32L083RBH6 integrates a Cortex-M0+ core with MPU, running up to 32 MHz via PLL or internal 16 MHz HSI (±1%), and supports dynamic voltage scaling for optimized power/performance trade-offs. Its clock system includes dedicated 48 MHz HSI48 for USB self-calibration and 32 kHz LSE for RTC with calibration.
Analog subsystem comprises two independent 12-bit DACs with output buffers (operable down to 1.8 V), two ultra-low-power comparators (window mode + wake-up, down to 1.65 V), and a 24-channel capacitive sensing controller - enabling touch interfaces without external components while maintaining sub-µA standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 32 MHz max, 0.95 DMIPS/MHz - delivers deterministic real-time control with minimal code footprint |
| Memory | 192 KB Flash (ECC, read-while-write), 20 KB SRAM, 6 KB EEPROM (ECC) - enables robust firmware storage, data logging, and parameter retention across power cycles |
| Power Modes | 0.29 µA Standby (3 wakeup pins), 0.86 µA Stop + RTC + 20 KB RAM retention - extends battery life in intermittent-sensing applications |
| ADC | 12-bit, 1.14 Msps, 16 channels, min supply 1.65 V - supports high-resolution sensor acquisition even at low battery voltage |
| DAC | 2 × 12-bit buffered outputs, min supply 1.8 V - provides precise analog stimulus generation for calibration or actuator control |
| USB | Crystal-less USB 2.0 FS, battery charging detection, LPM - eliminates external crystal, reduces BOM cost and PCB area |
| LCD Driver | Up to 4×52 or 8×48 segments, on-board step-up converter, contrast/blinking control - enables direct drive of segmented displays in wearables and meters |
Pinout & Package
STM32L083RBH6 uses the LQFP64 (10×10 mm) package with 64 leads and ECOPACK2 environmental compliance. All I/Os are 5V tolerant except BOOT0 and oscillator pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 1.65–3.6 V domain; separate VDDA/VSSA required for analog accuracy |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PH0–PH1 | General-purpose I/Os | 78 total 5V-tolerant GPIOs; support multiple alternate functions including USB, ADC, DAC, timers, and TSC |
| PA11/PA12 | USB D+/D− | Dedicated crystal-less USB interface; internal transceiver and timing recovery |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz external crystal for precision real-time clock and calendar |
| NRST | Active-low reset | Internal pull-up; accepts 1.65–3.6 V logic; supports external reset and debugger-initiated reset |
| BOOT0 | Boot mode selection | High at reset selects system memory bootloader; requires external pull-down for main Flash execution |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.29 µA Standby, 0.86 µA Stop + RTC + full RAM retention - enables >10-year coin-cell battery life in metering |
| Hardware AES-128 engine | Dedicated cryptographic accelerator with DMA support - offloads CPU during secure boot or OTA update decryption |
| True RNG | Entropy source compliant with NIST SP800-90B - enables FIPS-compliant key generation for device identity and TLS handshake |
| Capacitive sensing (TSC) | 24-channel controller with built-in charge transfer, no external components needed - reduces BOM for touch buttons/sliders in medical handhelds |
| Serial wire debug (SW-DP) | 2-pin debug interface with SWO trace support - enables non-intrusive real-time profiling and low-pin-count development |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered gas/water meter with hourly pulse reading, local display, and periodic RF transmission. IC Role / Device Role / Timing Role: Main system controller managing sensor sampling, LCD refresh, RTC-based scheduling, and USB firmware updates. Use Value: 0.86 µA Stop + RTC + 20 KB RAM retention preserves timekeeping and configuration while minimizing battery drain between reads. | Use Scenario: Handheld electrocardiogram device acquiring analog biopotentials, performing real-time filtering, and storing waveform data. IC Role / Device Role / Timing Role: Signal acquisition hub with 12-bit ADC (1.14 Msps), dual DACs for reference generation, and AES-128 for encrypted patient data storage. Use Value: Integrated 12-bit ADC operating down to 1.65 V ensures consistent signal fidelity as battery voltage declines during field use. |
| Industrial Wireless Sensor Node | Low-Power Smart Badge |
Use Scenario: Temperature/humidity node powered by energy harvesting, transmitting via BLE and sleeping >99% of the time. IC Role / Device Role / Timing Role: System-on-chip managing sensor interface, ultra-low-power timer wake-up, and USB-based provisioning. Use Value: Crystal-less USB eliminates timing component, reducing size/cost while enabling field firmware reprogramming without dedicated programmer. | Use Scenario: Contactless access badge with capacitive touch UI, segmented LCD, and secure credential storage. IC Role / Device Role / Timing Role: Touch/LCD controller and security engine handling TSC input, segment driving, and AES-encrypted credential validation. Use Value: On-chip LCD step-up converter and contrast control eliminate external DC-DC, simplifying layout for thin-form-factor wearable packaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L073RZT6 | Same L0 series, but 64 KB Flash, no USB, no LCD driver, 12-bit ADC only (no DACs) | Suitable for simpler sensor nodes without display or secure USB provisioning | Select when BOM cost reduction is prioritized over display/USB/AES features |
| STM32L433RCT6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, no LCD, USB with crystal, higher active power (81 µA/MHz) | Better for floating-point math (e.g., FFT-based vibration analysis), but consumes more power in low-duty-cycle apps | Choose when computational throughput outweighs ultra-low-power requirements |
Compared with STM32L073RZT6, STM32L083RBH6 adds USB, LCD, DACs, and AES - justifying its use in display-enabled, secure, field-upgradable devices; versus STM32L433RCT6, it trades raw performance for 3× lower Stop-mode current and integrated peripherals that reduce external component count.
Availability
STM32L083RBH6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical monitors, industrial wireless sensor nodes, and low-power smart badges requiring stable component supply and long-term manufacturability.
Supply support for STM32L083RBH6 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 analog products for industrial, automotive, and consumer markets.
The STM32L0 series targets ultra-low-power embedded applications demanding extended battery life, secure firmware execution, and rich analog integration - optimized for metering, wearables, and IoT edge nodes.
FAQ
What is the maximum operating temperature range for STM32L083RBH6?
The STM32L083RBH6 is rated for operation from –40 °C to +125 °C ambient temperature, validated per ST's production test flow. This extended range supports deployment in harsh industrial environments such as smart grid infrastructure and automotive under-hood telemetry modules where thermal stability is critical.
Does STM32L083RBH6 support crystal-less USB operation?
Yes - STM32L083RBH6 integrates a factory-trimmed 48 MHz HSI48 oscillator with automatic self-calibration against USB SOF packets, enabling full-speed USB 2.0 communication without an external crystal. This reduces bill-of-materials cost and PCB footprint while maintaining ±0.25% frequency accuracy required for USB compliance.
How many I/O pins are 5V tolerant on STM32L083RBH6?
78 of the 84 fast I/Os on STM32L083RBH6 are 5V tolerant, including all GPIOs except BOOT0 and the oscillator input pins (PH0/PH1, PC14/PC15). This allows direct interfacing with legacy 5V logic, sensors, and displays without level-shifting circuitry - simplifying design in mixed-voltage systems.
What is the purpose of the 6 KB EEPROM block?
The 6 KB data EEPROM with ECC provides non-volatile storage for calibration coefficients, device-specific parameters, and usage logs - accessible via standard flash programming APIs. Unlike external EEPROMs, it eliminates I²C/SPI overhead and offers guaranteed endurance (100k write/erase cycles) and 20-year data retention at 85 °C.
STM32L083RBH6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-TFBGA
- Series:
- STM32L0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 6K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L083RBH6 FAQ
1.How can I place an order for STM32L083RBH6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L083RBH6 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 STM32L083RBH6 reliable?
The price and inventory of STM32L083RBH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L083RBH6 is usually 5 days.
3.What payment methods are accepted for STM32L083RBH6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L083RBH6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L083RBH6?
STM32L083RBH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L083RBH6 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 STM32L083RBH6?
For technical support, including STM32L083RBH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L083RBH6 requirements.
6.How does Aetrix verify that STM32L083RBH6 is sourced from the original manufacturer or authorized distributors?
All STM32L083RBH6 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 STM32L083RBH6 meets industry standards.
7.What is the process for return or replacement of STM32L083RBH6?
All STM32L083RBH6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L083RBH6, 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 STM32L083RBH6 part is unused and in its original packaging.
Return procedure for STM32L083RBH6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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