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STMicroelectronics STM32L062K8T6
- Part No.:
- STM32L062K8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM32L062K8T6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:8,983
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Product details
Overview
STM32L062K8T6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 64 KB Flash, 8 KB SRAM, 2 KB EEPROM, integrated USB 2.0 (crystal-less), 12-bit ADC (1.14 Msps, 10 channels), and hardware AES-128 encryption. It operates from 1.65 V to 3.6 V across –40 °C to +125 °C and targets battery-powered IoT sensor nodes requiring secure, long-life operation with analog sensing and USB connectivity.
For engineers reviewing the STM32L062K8T6 datasheet, STM32L062K8T6 pinout, STM32L062K8T6 application, or STM32L062K8T6 equivalent, key selection criteria include ultra-low standby current (0.27 µA), USB crystal-less timing tolerance, 5V-tolerant I/O count (25 pins), DAC output buffer capability down to 1.8 V, and ECC-protected memory architecture for mission-critical firmware integrity.
Technical Context
The STM32L062K8T6 integrates a Cortex-M0+ core with MPU, supporting dynamic voltage scaling and multiple low-power modes including Stop mode with RTC + 8 KB RAM retention at 0.8 µA. Its clock system combines factory-trimmed 16 MHz HSI, self-calibrating 48 MHz HSI48 for USB, and 32 kHz LSE for RTC-enabling precise timekeeping without external crystals.
Analog subsystem includes two ultra-low-power comparators (wakeup capable down to 1.65 V), a 12-bit DAC with output buffers, and a 10-channel ADC operating down to 1.65 V supply. The device also embeds a touch-sensing controller (TSC) supporting up to 14 capacitive sensing channels for human-interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, up to 32 MHz; delivers 0.95 DMIPS/MHz for deterministic real-time control in constrained power budgets. |
| Memory | 64 KB Flash with ECC, 8 KB SRAM, 2 KB data EEPROM with ECC-ensures firmware/data integrity in harsh environments. |
| USB Interface | Crystal-less USB 2.0 full-speed; eliminates external crystal and matching components, reducing BOM cost and PCB area. |
| ADC | 12-bit, 10-channel, 1.14 Msps; supports single-ended/differential acquisition down to 1.65 V supply for direct battery monitoring. |
| DAC | 12-bit, 1-channel with output buffer; provides rail-to-rail analog output down to 1.8 V supply for sensor excitation or calibration signals. |
| Low-Power Modes | 0.27 µA Standby (2 wakeup pins), 0.8 µA Stop+RTC+RAM retention-enables multi-year battery life in periodic-sensing applications. |
| Security | Hardware AES-128 engine + true RNG + firewall protection-enables secure firmware updates and encrypted sensor data transmission. |
Pinout & Package
STM32L062K8T6 is packaged in UFQFPN32 (5 × 5 mm, 0.5 mm pitch), a space-efficient, thermally enhanced quad flat no-lead package suitable for compact industrial and portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply (1.65–3.6 V) | Primary digital/analog domain supply; requires local decoupling for stable low-power operation. |
| VSS | Ground reference | Digital and analog ground shared; layout separation recommended for noise-sensitive analog measurements. |
| PA0–PA15 | General-purpose I/O | 25 pins are 5V tolerant; enables direct interfacing with legacy 5V peripherals without level shifters. |
| PA11/PA12 | USB D+/D− | Dedicated crystal-less USB interface; internal transceivers and timing recovery eliminate external oscillator. |
| PC13–PC15 | RTC oscillator inputs | Supports optional 32.768 kHz external crystal for high-accuracy RTC; internal LSE calibration available. |
| NRST | Active-low reset input | Asynchronous reset with programmable threshold; compatible with push-button or supervisor IC assertion. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, Flash, or SRAM); pulled low by default for normal Flash execution. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby | 0.27 µA with 2 wakeup pins enabled-extends coin-cell battery life beyond 10 years in infrequent-wakeup sensor nodes. |
| Crystal-less USB | HSI48 self-calibration against USB SOF packets ensures ±0.25% accuracy without external crystal-reducing component count and board area. |
| ECC memory protection | Flash and EEPROM include error correction coding-prevents silent data corruption in field-deployed devices exposed to radiation or voltage transients. |
| Capacitive touch controller | 14-channel TSC with built-in charge transfer and filtering-enables robust touchkey, slider, and rotary controls without external ICs. |
| Programmable voltage detector | PVD with 8 selectable thresholds-allows adaptive brownout response based on battery discharge profile or system state. |
Applications
| Smart Utility Metering | Wearable Health Monitor |
|---|---|
Use Scenario: Battery-powered gas/water meter with hourly pressure/flow readings and monthly RF upload. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, AES-encrypted data storage, RTC-based scheduling, and USB firmware updates. Use Value: 0.27 µA standby current and ECC Flash enable >15-year deployment without maintenance; crystal-less USB simplifies certification and field servicing. | Use Scenario: Disposable ECG patch with 7-day continuous monitoring and Bluetooth LE offload. IC Role / Device Role / Timing Role: Analog front-end manager-configuring ADC sampling, driving DAC for lead-off detection, and timestamping events via RTC. Use Value: 12-bit ADC (1.14 Msps) captures high-fidelity biopotentials; 5V-tolerant I/O allows reuse of legacy electrode interface circuits. |
| Industrial Predictive Maintenance Sensor | Secure Asset Tracker |
Use Scenario: Vibration/temperature node on rotating machinery, waking every 5 minutes to capture FFT data and transmit via LoRaWAN. IC Role / Device Role / Timing Role: Low-power data aggregator-orchestrating accelerometer sampling, FFT computation in RAM, and AES-encrypted packet generation. Use Value: 0.8 µA Stop+RTC+RAM retention preserves context across wake cycles; hardware AES-128 prevents tampering with maintenance logs. | Use Scenario: GPS-enabled cargo tracker with geofence alerts, tamper detection, and encrypted location reporting. IC Role / Device Role / Timing Role: Security-enforced host controller-managing GPS UART, tamper switch inputs, backup SRAM, and secure boot validation. Use Value: True RNG and firewall protection ensure cryptographic key generation and runtime memory isolation against physical attacks. |
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 |
|---|---|---|---|
| STM32L072K8T6 | Same package and pinout; adds 2x I²C, 1x additional USART, and 1 KB more RAM (16 KB vs. 8 KB). | Better suited for multi-protocol gateway roles requiring concurrent I²C sensor hub + UART debug + USB host. | Select when protocol stacking or larger firmware footprint justifies marginal power increase in active modes. |
| STM32L053R8T6 | LQFP64 package (64-pin); lacks USB and TSC; retains same core, memory, and low-power specs. | Targeted at cost-sensitive industrial controllers where USB is unnecessary and board space permits larger package. | Choose when USB is omitted and higher I/O count (up to 51 GPIOs) is required for discrete sensor/actuator interfacing. |
Compared with STM32L072K8T6, this part trades peripheral count for lower system-level BOM cost and smaller footprint; versus STM32L053R8T6, it delivers USB integration and capacitive touch capability at the expense of package size and pin count-making it optimal for space-constrained, USB-connected edge nodes.
Availability
STM32L062K8T6 is available at Aetrix Electronics and suitable for smart utility metering, wearable health monitors, industrial predictive maintenance sensors, and secure asset trackers requiring stable component supply and long-term manufacturability.
Supply support for STM32L062K8T6 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 is engineered for ultra-low-power embedded applications demanding extended battery life, robust security, and rich analog integration-targeting IoT endpoints, medical wearables, and energy-harvesting systems.
FAQ
Does STM32L062K8T6 support USB device mode without an external crystal?
Yes. It features a self-calibrating 48 MHz HSI48 RC oscillator synchronized to USB Start-of-Frame (SOF) tokens, achieving ±0.25% accuracy-eliminating need for external crystal or oscillator in USB device implementations.
What is the minimum supply voltage for the 12-bit ADC to operate at full specification?
The 12-bit ADC maintains full 1.14 Msps sampling rate and specified INL/DNL performance down to 1.65 V supply, enabling direct connection to single-cell Li-ion or alkaline batteries without regulation.
How many I/O pins are 5V tolerant on STM32L062K8T6?
25 of the 29 fast I/Os are 5V tolerant (PA0–PA15, PB0–PB1, PB10–PB11, PB14–PB15), allowing direct interfacing with 5V logic, sensors, or displays without external level-shifting circuitry.
Is hardware AES encryption available in all low-power modes?
No. The AES-128 engine operates only in Run and Sleep modes. It is disabled in Stop and Standby modes to minimize leakage current; encryption keys must be reloaded after wakeup from deep sleep.
STM32L062K8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- 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, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 10x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L062K8T6 FAQ
1.How can I place an order for STM32L062K8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L062K8T6 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 STM32L062K8T6 reliable?
The price and inventory of STM32L062K8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L062K8T6 is usually 5 days.
3.What payment methods are accepted for STM32L062K8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L062K8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L062K8T6?
STM32L062K8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L062K8T6 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 STM32L062K8T6?
For technical support, including STM32L062K8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L062K8T6 requirements.
6.How does Aetrix verify that STM32L062K8T6 is sourced from the original manufacturer or authorized distributors?
All STM32L062K8T6 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 STM32L062K8T6 meets industry standards.
7.What is the process for return or replacement of STM32L062K8T6?
All STM32L062K8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L062K8T6, 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 STM32L062K8T6 part is unused and in its original packaging.
Return procedure for STM32L062K8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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