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STMicroelectronics STM32L082CZY6TR
- Part No.:
- STM32L082CZY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
STM32L082CZY6TR.pdf
- Description:
- IC MCU 32BIT 192KB FLASH 49WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,825
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Product details
Overview
STM32L082CZY6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller in WLCSP36 package, featuring 192 KB Flash with ECC, 20 KB SRAM, 6 KB EEPROM, USB 2.0 crystal-less interface, and dual 12-bit DACs - deployed in battery-powered IoT sensor nodes requiring sub-100 µA/MHz active current and secure firmware updates via AES-128.
For engineers reviewing the STM32L082CZY6TR datasheet, STM32L082CZY6TR pinout, STM32L082CZY6TR application, or STM32L082CZY6TR equivalent, key selection criteria include verified 0.86 µA Stop mode + RTC + 20-KB RAM retention, 41 µA 12-bit ADC conversion at 10 ksps, and hardware-accelerated AES-128 for secure over-the-air (OTA) firmware validation in constrained-edge devices.
Technical Context
The STM32L082CZY6TR integrates a Cortex-M0+ core with MPU, operating from 32 kHz to 32 MHz, delivering 0.95 DMIPS/MHz; its clock system includes factory-trimmed 16 MHz HSI, self-calibrating 48 MHz HSI48 for USB, and 32 kHz LSE for RTC with calibration support.
Analog subsystem comprises a 12-bit ADC (1.14 Msps, 13 channels), two buffered 12-bit DACs (operable down to 1.8 V), two ultra-low-power comparators (wake-up capable down to 1.65 V), and 19-channel capacitive sensing controller - all optimized for single-cell Li-ion or coin-cell operation across -40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+ with MPU, 32 MHz max - enables deterministic real-time control with memory protection in safety-critical edge nodes. |
| Flash / SRAM / EEPROM | 192 KB Flash (ECC, read-while-write), 20 KB SRAM, 6 KB EEPROM (ECC) - supports robust firmware storage, runtime data logging, and parameter retention without external NV memory. |
| Low-Power Performance | 0.86 µA Stop mode + RTC + 20-KB RAM retention - sustains timekeeping and volatile context during multi-week sleep in metering or environmental monitors. |
| ADC/DAC | 12-bit ADC (1.14 Msps, 13 ch), 2×12-bit DACs with buffers - enables simultaneous analog sensing and actuator control (e.g., precision gas sensor biasing + CO₂ output scaling). |
| Security & Connectivity | AES-128 hardware engine, USB 2.0 crystal-less (LPM, battery charging detect) - enables authenticated OTA updates and direct PC connectivity without external crystal or charger IC. |
| Operating Range | 1.65 V to 3.6 V supply, -40°C to +125°C - compatible with single Li-SOCl₂, Li-MnO₂, or 2×AA alkaline cells across industrial and automotive under-hood environments. |
Pinout & Package
STM32L082CZY6TR uses a 36-ball WLCSP (2.61 × 2.88 mm, 0.4 mm pitch) with 32 I/Os - 34 of which are 5V-tolerant, enabling direct interfacing with legacy 5 V peripherals without level shifters.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual VDD pins (analog/digital) and dedicated VSSA reduce noise coupling into ADC/DAC paths. |
| PA0–PA15, PB0–PB11, PC0–PC7, PH0–PH1 | General-purpose I/O | 32 GPIOs with configurable pull-up/down, alternate functions, and 5V tolerance - support flexible peripheral mapping for sensor fusion or multi-protocol gateways. |
| PA11/PA12 | USB D+/D- | Crystal-less USB 2.0 full-speed interface - eliminates external 48 MHz crystal and matching components, reducing BOM cost and PCB area. |
| PA4–PA7, PB0–PB1 | ADC IN0–IN7 | 8 dedicated ADC input channels - enable simultaneous sampling of temperature, voltage, current, and analog sensor outputs without multiplexer latency. |
| PA4/PA5 | DAC1_OUT/DAC2_OUT | Buffered 12-bit DAC outputs - drive analog actuators (e.g., valve positioners, LED dimming) directly with rail-to-rail swing down to 1.8 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Stop mode | 0.86 µA with RTC + 20 KB RAM retention - extends battery life to >10 years in wake-on-event applications like smart utility meters. |
| Hardware AES-128 | Dedicated encryption engine with DMA support - offloads CPU during secure boot and encrypted firmware update, preserving low-power runtime budget. |
| Crystal-less USB | Integrated 48 MHz HSI48 with automatic calibration - removes external crystal, saving 1.5 mm² PCB area and eliminating crystal aging drift in long-life deployments. |
| Capacitive touch controller | 19-channel TSC supporting touchkey, linear, and rotary sensors - enables intuitive HMI on space-constrained wearables or medical handhelds without external IC. |
| Programmable voltage detector | Configurable PVD with 8 thresholds - provides precise brownout detection for graceful shutdown before Li-ion cell voltage drops below 2.5 V. |
Applications
| Smart Utility Metering | Portable Medical Sensors |
|---|---|
Use Scenario: Battery-powered ultrasonic water/gas meter with 10-year lifespan, performing hourly flow measurement and daily RF transmission. IC Role / Device Role / Timing Role: Main MCU executing metrology algorithms, managing RTC-triggered wake-up, and securing firmware updates via AES-128. Use Value: 0.86 µA Stop mode + RTC ensures accurate timekeeping and event scheduling while extending primary battery life beyond ISO 4064 lifetime requirements. | Use Scenario: Handheld ECG patch recording 3-lead biopotentials for 72-hour ambulatory monitoring using coin-cell power. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC at 1 ksps, buffering data in SRAM, and compressing/transmitting via BLE after local processing. Use Value: Dual 12-bit DACs generate precise reference voltages for analog front-end biasing, improving SNR by ≥3 dB versus resistor-divider solutions. |
| Industrial Wireless Sensor Node | Asset Tracking Beacon |
Use Scenario: IP67-rated vibration/temperature node mounted on rotating machinery, transmitting LoRaWAN telemetry every 5 minutes. IC Role / Device Role / Timing Role: Low-power host managing MEMS accelerometer, internal temperature sensor, and LoRa transceiver via SPI/USART. Use Value: 41 µA ADC conversion at 10 ksps enables high-fidelity FFT-based vibration analysis without compromising sub-µA sleep current. | Use Scenario: GPS-denied indoor asset tracker using UWB ranging and BLE beaconing, powered by CR2032 with 3-year target life. IC Role / Device Role / Timing Role: System orchestrator handling UWB time-of-flight calculations, BLE advertising packet generation, and secure key storage in EEPROM. Use Value: 6 KB EEPROM with ECC stores cryptographic keys and calibration data reliably across 100k write cycles - eliminating need for external secure element. |
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 |
|---|---|---|---|
| STM32L072CZY6TR | 128 KB Flash, no USB, same WLCSP36 package and peripheral set | Lacks crystal-less USB and 64 KB less Flash - suitable for non-USB sensor nodes where firmware size <128 KB | Select when USB connectivity is unnecessary and BOM cost reduction is prioritized over field-upgrade flexibility. |
| STM32L432KCU6 | Cortex-M4F core, 256 KB Flash, 64 KB SRAM, USB, but 48-pin UFQFPN only | Higher performance (100 DMIPS), FPU, and larger memory - requires PCB redesign due to different package and pinout | Choose for applications needing floating-point math (e.g., predictive maintenance ML inference) and accepting higher active current (82 µA/MHz). |
Compared with STM32L072CZY6TR, the STM32L082CZY6TR adds USB and 64 KB Flash for secure OTA updates; versus STM32L432KCU6, it trades raw compute for 3× lower Stop-mode current and smaller footprint - making it optimal for size- and battery-limited edge endpoints.
Availability
STM32L082CZY6TR is available at Aetrix Electronics and suitable for smart metering, portable medical sensors, industrial wireless nodes, and asset tracking beacons requiring stable component supply across extended product lifecycles.
Supply support for STM32L082CZY6TR 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, 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 - specifically engineered for battery-operated devices demanding multi-year operation, secure firmware integrity, and rich analog integration in minimal form factors.
FAQ
What is the maximum operating frequency and core type of the STM32L082CZY6TR?
The STM32L082CZY6TR features an Arm Cortex-M0+ core with a maximum CPU frequency of 32 MHz, delivering 0.95 DMIPS/MHz. It supports dynamic voltage scaling to optimize power vs. performance, and includes a Memory Protection Unit (MPU) for enhanced software reliability in safety-aware designs.
Does the STM32L082CZY6TR support crystal-less USB operation?
Yes - it integrates a self-calibrating 48 MHz HSI48 RC oscillator qualified for USB 2.0 full-speed operation without an external crystal. This feature enables crystal-less USB connectivity with battery charging detection and link power management, reducing BOM count and PCB area in portable designs.
How much SRAM and EEPROM does the STM32L082CZY6TR provide, and what protection features do they include?
The device includes 20 KB of SRAM and 6 KB of data EEPROM, both protected by Error Correction Code (ECC). The EEPROM supports up to 100,000 write/erase cycles and 40-year data retention at 55°C, enabling reliable storage of calibration coefficients, security keys, and field-updatable parameters without external non-volatile memory.
What are the key low-power modes and their typical current consumption values?
Key low-power modes include Standby (0.29 µA, 3 wakeup pins), Stop (0.43 µA, 16 wakeup lines), and Stop + RTC + 20 KB RAM retention (0.86 µA). All modes retain register and SRAM content, and wakeup occurs in ≤5 µs from Flash - enabling rapid response to sensor events while maintaining multi-year battery life in intermittent-use applications.
STM32L082CZY6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 49-UFBGA, WLCSP
- Series:
- STM32L0
- Packaging:
- Tape & Reel (TR)
- 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:
- 40
- Program Memory Size:
- 192KB (192K 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 13x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L082CZY6TR FAQ
1.How can I place an order for STM32L082CZY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L082CZY6TR 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 STM32L082CZY6TR reliable?
The price and inventory of STM32L082CZY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L082CZY6TR is usually 5 days.
3.What payment methods are accepted for STM32L082CZY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L082CZY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L082CZY6TR?
STM32L082CZY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L082CZY6TR 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 STM32L082CZY6TR?
For technical support, including STM32L082CZY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L082CZY6TR requirements.
6.How does Aetrix verify that STM32L082CZY6TR is sourced from the original manufacturer or authorized distributors?
All STM32L082CZY6TR 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 STM32L082CZY6TR meets industry standards.
7.What is the process for return or replacement of STM32L082CZY6TR?
All STM32L082CZY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L082CZY6TR, 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 STM32L082CZY6TR part is unused and in its original packaging.
Return procedure for STM32L082CZY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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