My Inquiry
My Account
STMicroelectronics STM32L041C6T6TR
- Part No.:
- STM32L041C6T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32L041C6T6TR.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,629
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32L041C6T6TR from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 32 KB Flash, 8 KB SRAM, and 1 KB EEPROM with ECC; features 12-bit ADC (1.14 Msps), AES-128 hardware encryption, and operates from 1.65 V to 3.6 V across –40 °C to 125 °C - deployed in battery-powered IoT sensor nodes requiring long-term autonomous operation.
For engineers reviewing the STM32L041C6T6TR datasheet, STM32L041C6T6TR pinout, STM32L041C6T6TR application, or STM32L041C6T6TR equivalent, key selection criteria include standby current (0.23 µA), RTC + RAM retention in Stop mode (0.6 µA), 5 µs Flash wakeup time, and 31 I/Os with 5V tolerance - critical for energy-constrained embedded control and secure telemetry designs.
Technical Context
The STM32L041C6T6TR integrates a Cortex-M0+ core running up to 32 MHz with 0.95 DMIPS/MHz performance and dynamic voltage scaling support. Its ultra-low-power architecture includes five low-power modes (Run, Sleep, Low-power Run/Sleep, Stop, Standby), each with distinct peripheral availability and current consumption profiles validated down to 1.65 V supply.
Clock management combines multiple sources: HSE (1–25 MHz), LSE (32 kHz RTC), HSI16 (16 MHz ±1%), LSI (37 kHz), MSI (65 kHz–4.2 MHz), and PLL - enabling precise timing control for real-time sensing and secure communication while minimizing active and quiescent power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 32 MHz max - delivers deterministic real-time control with minimal power overhead. |
| Memory | 32 KB Flash (ECC), 8 KB SRAM, 1 KB EEPROM (ECC) - enables robust firmware storage, data logging, and secure key retention. |
| ADC | 12-bit, 1.14 Msps, 10-channel - supports high-resolution analog sensing at sub-1 µs conversion intervals. |
| Low-power Modes | 0.23 µA Standby (2 wake pins), 0.6 µA Stop + RTC + 8 KB RAM retention - extends battery life to years in intermittent-sensing applications. |
| Crypto Engine | AES-128 hardware accelerator - offloads encryption/decryption without CPU intervention, preserving power and latency. |
| I/O Voltage Tolerance | 31 of 38 I/Os rated 5V tolerant - simplifies interface with legacy peripherals and mixed-voltage systems. |
| Wakeup Time | 5 µs from Flash memory - ensures rapid response to external events without sacrificing energy efficiency. |
Pinout & Package
STM32L041C6T6TR is housed in a 48-pin UFQFPN package (7 × 7 mm, 0.5 mm pitch), compliant with ECOPACK®2 environmental standards. Pin functions are defined per ST's DS10780 Rev 6 datasheet Section 4 (Pin descriptions) and Table 15 (Pin definitions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | Separate domains for digital core, analog, and I/O - enable selective power gating and noise isolation. |
| VSS, VSSA | Ground references | Dedicated analog/digital ground pins reduce coupling noise in mixed-signal operation. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/Os | 31 pins support 5V tolerance; configurable as GPIO, alternate functions (USART, SPI, I²C), or event inputs. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or microcontroller-driven reset. |
| BOOT0 | Boot mode selection | High at power-on selects system memory bootloader; used for factory programming or recovery. |
| OSC_IN / OSC_OUT | External crystal oscillator terminals | Support 1–25 MHz crystals; essential for precise clocking in RTC, USB, or synchronous comms. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power BOR | 5 selectable brownout reset thresholds - ensures reliable startup and operation across wide voltage ranges. |
| Hardware AES-128 | Dedicated crypto engine with DMA support - enables secure OTA updates and encrypted sensor data transmission. |
| RTC with calibration | 32 kHz LSE-based real-time clock with ±1 ppm accuracy after calibration - sustains accurate timekeeping during Stop mode. |
| 7-channel DMA | Offloads ADC, SPI, I²C, USART, timers, and AES transfers - eliminates CPU polling and reduces active time. |
| Temperature sensor | Integrated calibrated sensor (±2 °C accuracy) - enables thermal monitoring without external components. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-operated gas/water meter collecting pulse counts and temperature every 15 minutes, transmitting via NB-IoT. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, AES-encrypted payload generation, RTC-triggered transmission, and deep-sleep scheduling. Use Value: 0.23 µA Standby current extends 10-year battery life; 5 µs wakeup ensures prompt response to tamper interrupts. | Use Scenario: Environmental monitor (temp/humidity/pressure) deployed in remote agricultural fields with solar charging. IC Role / Device Role / Timing Role: System-on-chip handling analog sensing, low-power UART/I²C peripheral control, and scheduled BLE advertising bursts. Use Value: 0.6 µA Stop mode + RTC + full 8 KB RAM retention preserves context and schedule between 10-minute measurement cycles. |
| Medical Wearable | Industrial Predictive Maintenance |
Use Scenario: Disposable ECG patch recording biopotentials continuously for 72 hours on coin-cell power. IC Role / Device Role / Timing Role: Signal acquisition controller interfacing with analog front-end, performing on-chip filtering, and storing compressed data in EEPROM. Use Value: 12-bit ADC with 1.14 Msps supports oversampling for noise reduction; ECC-protected EEPROM ensures reliable patient data retention. | Use Scenario: Vibration sensor node on rotating machinery, sampling accelerometer data at 1 kHz and triggering alerts on anomaly detection. IC Role / Device Role / Timing Role: Real-time edge processor executing FFT-based analysis, timestamping events via RTC, and buffering results in SRAM before wireless upload. Use Value: 32 MHz Cortex-M0+ delivers sufficient MIPS for lightweight ML inference; 31 5V-tolerant I/Os simplify connection to industrial-level analog sensors. |
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 |
|---|---|---|---|
| STM32L051C6T6 | 64 KB Flash, same 8 KB SRAM/1 KB EEPROM, identical package and pinout - adds 2x more Flash for larger firmware or bootloader space. | Preferred where field-upgradable firmware or dual-bank bootloading is required. | Select when future firmware expansion or A/B update capability is needed without PCB redesign. |
| STM32L031F6P6 | 32 KB Flash, 8 KB SRAM, but only 20-pin TSSOP package (fewer I/Os, no 5V tolerance), no AES engine - lower cost, reduced feature set. | Suitable for simpler, cost-sensitive devices with minimal peripheral count and no security requirements. | Choose for basic control tasks where cryptographic acceleration and 5V-tolerant I/O are unnecessary. |
Compared with STM32L051C6T6, the STM32L041C6T6TR trades Flash capacity for identical low-power performance and AES support; versus STM32L031F6P6, it delivers significantly higher I/O flexibility, security, and analog capability - making it optimal for secure, sensor-rich edge nodes.
Availability
STM32L041C6T6TR is available at Aetrix Electronics and suitable for battery-powered IoT sensor nodes, medical wearables, smart utility meters, and industrial predictive maintenance systems requiring stable component supply and long-term manufacturability.
Supply support for STM32L041C6T6TR 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 ICs, sensors, and analog products for industrial, automotive, and consumer markets.
The STM32L0 series targets ultra-low-power embedded applications, emphasizing energy efficiency, integrated security, and rich analog/mixed-signal capability - specifically engineered for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and associated power consumption in Run mode?
The STM32L041C6T6TR achieves a maximum CPU frequency of 32 MHz. At this speed, typical current consumption is 76 µA/MHz when running code from Flash memory, translating to approximately 2.43 mA total under full load - verified per DS10780 Rev 6 Section 6.3.4.
Does this MCU support hardware-based secure boot or trusted execution?
No, the STM32L041C6T6TR does not include a dedicated secure boot ROM or TrustZone. It provides AES-128 hardware encryption and ECC-protected memories for data confidentiality and integrity, but secure boot must be implemented in software using stored keys and signature verification.
Can the 12-bit ADC operate reliably below 2.0 V supply?
Yes - the ADC is fully functional down to 1.65 V supply voltage, with specified performance (12-bit resolution, 1.14 Msps) maintained across the entire operating range per DS10780 Rev 6 Table 57 and Section 6.3.15.
Is the UFQFPN48 package RoHS and REACH compliant?
Yes, the STM32L041C6T6TR in UFQFPN48 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, and is certified ECOPACK®2 - ST's eco-friendly packaging standard confirming halogen-free materials and lead-free terminations.
STM32L041C6T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- 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
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L041C6T6TR FAQ
1.How can I place an order for STM32L041C6T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L041C6T6TR 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 STM32L041C6T6TR reliable?
The price and inventory of STM32L041C6T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L041C6T6TR is usually 5 days.
3.What payment methods are accepted for STM32L041C6T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L041C6T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L041C6T6TR?
STM32L041C6T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L041C6T6TR 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 STM32L041C6T6TR?
For technical support, including STM32L041C6T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L041C6T6TR requirements.
6.How does Aetrix verify that STM32L041C6T6TR is sourced from the original manufacturer or authorized distributors?
All STM32L041C6T6TR 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 STM32L041C6T6TR meets industry standards.
7.What is the process for return or replacement of STM32L041C6T6TR?
All STM32L041C6T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L041C6T6TR, 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 STM32L041C6T6TR part is unused and in its original packaging.
Return procedure for STM32L041C6T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L041C6T6TR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
